You now add 0.500 L of a 4.00 M lead(II) nitrate solution to the beaker. 2. E) none of the above, Vitamin C is known chemically by the name ascorbic acid. A) 3.30 E) none of the above, What is the mass percent of Na in sodium chloride? C) magnesium chloride. D) 1.07 10-4 c) a $120-\mathrm{kg}$ linebacker with a speed of $10 \mathrm{~m} / \mathrm{s}$, Well, we have one. A) copper carbonate What must be supplied for a decomposition reaction to happen? E) none of the above, How many moles of bromine gas are in 37.7 grams? One mole of potassium sulfate contains: Replies Answer accepted by topic starter Solved In the gas phase one mole of N2 and three moles of H2 react to form two moles of NH3? D) 8 D) KI How many moles of carbon are in 3.5 moles of calcium carbonate? B) CrO2 absorbing the light when chemicals are contacted with earch other, When water is heated, bubbles form in the water. A) 78.05 g/mol B) 88.05 g/mol C) 96.09 g/mol D) 112.09 g/mol E) none of the above 34) Calculate the molar mass of calcium nitrate. B) N2H2 C) Pb Explain. Two moles of potassium can be converted by dividing the mass of the pot by the mass of the pot. Which of the following statements is FALSE? C) The neon balloon has more atoms. C) 0.555 D) Cr2O3 C) C2H4O2 Which of the following best describes one mole of potassium sulfate, K2SO4? An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. E) none of the above, Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 950 mg of Na present? D) emission of light when chemicals are contact with each other C) Subscripts are multiplied by the coefficients to determine the number of atoms in a compound. B) C3H21 D) aluminum sulfide You have 10.0 g each of Na, C, Pb, Cu and Ne. The moles of hydrochloric acid added, would equal the moles of potassium hydroxide that was present. E) none of the above, How many atoms are in 15.6 grams of silicon? A) potassium acetate 16.0 g B. D) K+, I- E) none of the above, What would the empirical formula be for the molecular compound C6H9O4? C) 7 E) none of the above, What are the coefficients for the following reaction when it is properly balanced? E) 2Na + H2O Na2OH (aq) + H (g) E) All statements are correct, An empirical formula represents a molecule, The empirical formula of a compound: E) none of the above, What is the mass (in grams) of 3.03 1024 molecules of carbon dioxide molecules? d. C) 4.51 1023 Answer : One mole of copper (II)sulfate contains number of oxygen atoms. C) 3 D) 34.5 The solvent was removed under high vacuum and the remaining residue was purified directly by flash column . Firstly, We must learn how to identify a mole that could potentially be cancerous. The mass of one mole of carbon dioxide is ________ g. In comparing 1 mole of carbon atoms to one mole of magnesium atoms, which statement is TRUE? A) AgO C) 1 mole of potassium.D) 3 moles of potassium. Determine the empirical formula of a compound containing 60.3% magnesium and 39.7% oxygen. the symbols and formulas of all reactants and products, When the equation, ___N2 + ___H2 ___NH3 is balanced, the coefficient of hydrogen is: B) emission of heat when chemicals are contacted with each other E) none of the above. If a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles of carbon dioxide are in the sample? B) 12.8 One mole of potassium sulfate (K2S04) contains: A. E) none of the above. If 3.011 1023 molecules have a mass of 20.04 grams, what is the molar mass of this substance? C) 19.2 D) 3 moles of potassium. From molarity we can say: 1L of 1M K 2SO 4 contains 2 moles of Potassium ions. Which contains the largest number of moles? n-factor=basicity of acid=1 (here) [Since HNO3 can give only one hydrogen ion.] The subsequent step is to seek the advice of a dermatologist. B) When coefficients are added the type of compounds is changed in the chemical reaction. Considering the following precipitation reaction: 12.8. B) CH3O2 An empirical formula represents a molecule. 3. What is the formula of the oxide? ___O2 + ___CH4 ___CO2 + ___H2O B) S2- $$, Give an example of a molecule or ion having a formula of each of the following types and structures. 16.0 g B. E) none of the above, What is the mass percent of oxygen in sodium oxide? C) the symbols and formulas of all reactants and products. A) molecular only. C) 2, 2, 2, 1 Mass percent (H) = Mass of waterMass. Pb(NO3)2(aq) + 2KI(aq) PbI2(s) + 2KNO3(aq) 6.Convert 18.2 mol of silver sulfate to grams 7.Convert 14.8 mol of lead (IV) hydrogen phosphate to formula units. Calculate the mass of one mol of oxygen gas. C) 2 moles of nitrogen. D) Ag3O A) 1 Add an answer. D) 62.0 C) 3, 2, 2, 1 B) 9.91 1025 A) If there is no coefficient or subscript, a one is implied. potassium sulfate is an excellent source of potassium for plants potassium chloride, potassium sulfate and potassium nitrate are used in agriculture, horticulture and hydroponics potassium sulphate (k2so4) is a non-flammable white crystalline salt which is soluble in water sulfate compounds are salts or esters of sulfuric acid formed by replacing E) Ne, How many moles of iron are contained in 1.75 kg of iron? B) 55.85 B) CH2O E) none of the above, 60) A redox reaction has occurred ________. B) Na. C) precipitation reaction. E) none of the above. B) potassium chloride. One mole of potassium sulfate (K2S04) contains: A. 2. A nonconducting sphere of radius 6.00cm6.00 \text{~cm}6.00cm has a uniform volume charge density of 450nC/m3450 \text{nC} / \text{m}^3450nC/m3. Determine the correct empirical formula of a compound containing 26.68% carbon, 2.24% hydrogen, and 71.08% oxygen. D) Na22+ A) FeCl A) Li. C) HO A) 2.14 x 1024 Which of the following is already in its empirical formula? Select appropriate equivalent molar ratio. A) 4.72 10-5 NaCl(aq] Na+ (aq] + Cl (aq] Potassium sulfate has a molar mass of 174.259 grams per mole. A) 208 The U. N. 610 2 is our mole. C) when one substance transfers protons to another D) absorbing light when chemicals are contacted with each other A) Individual sodium and chloride ions are present. One mole of potassium sulfate contains: 4 moles of oxygen. What is the mass percent of chlorine in hydrochloric acid? B) 4 moles of hydrogen atoms. D) Mn3O2 $5 Load your coursepivot wallet using PayPal or cards and purchase this answer to view it. B) FeCl2 A) CH 0.25 D) 3 moles of potassium E) none of the above 14) 14) The oxygen-to-hydrogen mass ratio of water is always 80 is an example of what fundamental law? B) decomposition When this compound dissolves in water, which ion listed below would be present in solution? C) 2 moles of sulfur. A) 10.5 A) MgO B) 3.5 1.69 C. 6.76 D. 13.5 E. none of the above 5. D) 32.0 g O2 16. A) Na 1. 1 mole of ferric sulfate contains 2 moles of iron, and 12 moles of oxygen atoms, and three moles of sulfate ions. A) acid-base reaction. A) 40.08 g/mol E) none of the above, What is the mass percent of carbon in oxalic acid, H2C2O4? B) 88.8 E) none of the above, How many moles of fluorine are in 3.2 moles of xenon hexafluoride? E) none of the above, A compound composed of only hydrogen and oxygen is 5.94% hydrogen by mass. E) none of the above, 16) What are the coefficients for the following reaction when it is properly balanced? D) 100.09 B) 2.70 x 1024 Given the following percent composition, what is the molecular formula? E) none of the above, How many moles of potassium are in 156.4 g? Find the electric field at the following distances from the sphere's center: Assume that a woman must breathe a constant mass rate of air to maintain her metabolic processes. C) 26.7 B) 4.93 C) single displacement A) synthesis/combination C) 3.76 1027 D) (w) B) CH2O Calculate the molar mass of ammonium carbonate. It contains one sulfur atom. I wish to bye then. Calculate the molar mass of calcium nitrate. C) 5, 2, 2, 1 C) Cr2(SO4)3 + 6KOH 2Cr(OH)3 + 3 K2SO4 The ltrate was partially concentrated to 30 % A) Pb2+ A) Each balloon has an equal number of atoms. 2003-2022 Chegg Inc. All rights reserved. B) the molar mass of all the compounds. E) none of the above, What is the molecular formula of a compound given the molar mass of the compound is 30.04 gram and the empirical formula is NH? 4 moles of oxygern B. E) 342.2 g/mol, Calculate the molar mass of ammonium carbonate. 2 moles of sulfur C. 1 mole of potassium D. 3 moles of potassium E. none of the above 2. This is equal to the weight of 20. C) An empirical formula must be multiplied by an integer to obtain the molecular formula. C) 165 So in order to solve this problem, we were the first have to calculate the Moeller master both K C l. And for K two. Given the following percent composition, calculate the molecular formula: 39.99% C, 6.73% H, 53.28% O. What is the value of n necessary to find the molecular formula? The only difference is in step 2 you convert volume of reactant (or product) to moles. If you spent $0.77, how many pounds of bananas did you purchase? D) Sodium chloride is insoluble in water. Then, knowing the story geometry of the reaction in this case, it's one toe one. D) 6.022 1023 4. C) 1 mole of potassium. B) C C) 20.04 g/mol C) Pb(NO3)2 E) All the above ions are in the net ionic equation. Approach for solving ANY stoichiometric problem 1. E) none of the above, What are the coefficients for the following reaction when it is properly balanced? B) 384.4 342.2 g/mol. The mole is thus the link between the micro world of atoms and molecules, and the macro world of grams and litres, the which we can easily measure by mass or volume. D) strontium carbonate A) 3 B) 3.7 x 10-25 $1p$. A) aluminum hydroxide B) 1.05 1025 3.38 B. A) precipitation D) 1.05 1025 B) 2 Calculate KwK_{\mathrm{w}}Kw, pOH\mathrm{pOH}pOH, and [OH]\left[\mathrm{OH}^{-}\right][OH]at this temperature. C) C3H6O3 A) 3.13 10-2 A) (s) An industrial process for manufacturing sulfuric acid, H2SO4, uses hydrogen sulfide, H2S, from the purification of natural gas. Which contains the smallest number of moles? D) A spectator ion remains unchanged in the reaction and appears on both sides of the equation. How many moles of cations are in 1.45 mol K2SO4? D) 70.1 b. So the small and mole cancel out and we get the value of 9.38 liter, which is the answer in terms of 3 significant figures. B) 0.0630 C) 1 mole of potassium. D) gas evolution reaction A) 1.9 D) 350.0 C) 2,430 Which contains the smallest number of moles? Thus, 2.5L of 0.200M K 2SO 4 contains (2 2.5 0.200) that is 1 mole of Potassium ions C) 32.00 C) potassium carbonate About Potassium sulfate Potassium sulfate weighs 2.66 gram per cubic centimeter or 2 660 kilogram per cubic meter, i.e. E) none of the above. E) All the above ions are in the complete ionic equation. E) none of the above, What is the molar mass of aluminum sulfate? D) 1, 1, 1, 2 C) water with a molecular compound dissolved in it. A) precipitation B) 7.33 1023 B) empirical only. D) the number of moles of all reactants and products. D) Rb. E) none of the above, ) What type of a reaction occurs when a potassium nitrate solution is mixed with a barium acetate solution? E) none of the above D ) 4 moles of oxygen . 2. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. E) none of the above, 19) Which of the following equations is NOT balanced properly? The concentration for the chloride is the same as before. Determine the empirical formula of a compound containing 83% potassium and 17.0% oxygen. Which of the following contains 9.02 1023 atoms? With potassium-t-butoxide In 1-methyl-pyrrolidin-2-one at 25; for 4h; 79%: With potassium-t-butoxide In 1-methyl-pyrrolidin-2-one at 20; for 4h; . 500 grams Potassium Sulfate to mol = 2.86929 mol. D) barium chloride. C) Pb C) Fe2Cl A) CHO We review their content and use your feedback to keep the quality high. H2 Which of the following best describes one mole of potassium sulfate, K,SO,?*. D) gas evolution In this case, you know that one formula unit of sodium chloride, NaCl, contains one sodium cation, Na+, and one chloride anion, Cl. (a)(a)(a) What is the total charge on the sphere? D) 9 one mole of potassium sulfate contains what, calculate the molar mass of ammonium carbonate, calculate the molar mass of calcium nitrate. E) none of the above. What is the angle to the third-order principal maximum (m = 3) when light with a wavelength of 426 nm shines on a grating with a slit spacing of $1.3 \times 10^{-5} \mathrm{m}$? B) 278.0 g/mol = 6.02 10 23 . E) none of the above, What is the value of n when the empirical formula is C3H5 and the molecular mass is 205.4g/mol? [edit | edit source] Another way of saying the same thing is to use the term 'Molar mass' . The formula for potassium dichromate is K2Cr2O7 How many grams of oxygen will be in 2 moles of potassium dichromate? A) CrO B) combustion reaction. As 1 mole of copper (II)sulfate contains number of oxygen atoms. C) C0.5H0.5O1 50 grams Potassium Sulfate to mol = 0.28693 mol. E) none of the above, If a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles of carbon dioxide are in the sample? A) precipitation D) gas evolution reaction. The compound potassium sulfate has a chemical formula K 2 SO 4 . B) 0.303 E) none of the above, Which of the following compounds has the highest mass percent of "O"? 1 mole of N2 contains 6.0221023 N2 molecules. What is the most likely empirical formula for this compound? Convert moles given to moles desired substance. Bauxite is an ore that contains the element aluminum. A) 33.3 E) none of the above. The sub script shows us that in one more molecule we have two moles of potassium to buy by the volume of the solution . 2016-10-24 19:28:15. A) 2 B) 2 moles of sulfur. answer choices . The sub script shows us that in one more molecule we have two moles of potassium to buy by the volume of the solution . B) The helium balloon has more atoms. ___Na3PO4 + ___Ba(NO3)2 ___NaNO3 + ___Ba3(PO4)2 D) double-displacement D) H2 (g) C) C3H6O2 5. C) oxidation-reduction D) 1.48 32.0 g C. 6.022 x 1023 g D. 8.0 g E. none of the above 3. E) none of the above, How many moles of carbon are in 3.5 moles of calcium carbonate? 36) One mole of potassium sulfate contains:A) 4 moles of oxygen. D) 438 Zn(s) + Cu2+(aq) Zn2+(aq) + Cu(s) E) none of the above, If 3.011 molecules have a mass of 20.04 grams, what is the molar mass of this substance? E) none of the above, 23) Which of the following compounds is INSOLUBLE? D) 3.11 x 1024 C) 0.677 E) All of the statements are true. C) A net ionic equation is an equation showing only the species that actually participate in the reaction. C) H+ + OH- H2O D) One mole of water contains 1/2 mole of oxygen atoms. Considering the following precipitation reaction: D) magnesium nitrate What is the mass of 0.560 moles of chlorine gas? 2 Mg(s) + O2(g) 2 MgO D) 1, 1, 2, 2, 17) When the equation __Ca3N2 + __H2O __Ca(OH)2 + __NH3 is balanced, the coefficient of H2O is: 1. A) 2, 1, 1, 1 1.0 mole C6H14 B. These drain into \_\_\_\_\_\_\_\_\_\_ ducts that converge toward the nipple. What is the compound's molecular formula? c. It has a molar mass of 174.3 g. b. Vitamin C is known chemically by the name ascorbic acid. HOw many moles of carbon are in 3.5 moles of calcium carbonate ? D) FeCl3 B) 7.33 1023 A) 28.01 D ) 11.2. Which means, each mole of Potassium sulphate contains two moles of Potassium ions. C) 5 E) none of the above, Which of the following is already in its empirical formula? Hence, 1 mol of the same contains 2 mol of potassium, 1 mol of sulfur and 4 mol of oxygen. C) 0.761 C) NO3- Mass of hydrogen = 1 g/mol. B) 2 moles of sulfur. E) none of the above, A chromium oxide compound contains 104.0 grams of chromium and 48.0 grams of oxygen. $$ One mole of water contains 1/2 mole of oxygen atoms. If she inhales and exhales 16 times per minute at sea level, where the temperature is 59F^{\circ}FF (15C^{\circ}CC) and the pressure is 14.7 psia (101 kPa), what would you expect her rate of breathing at 18,000 ft (5486 m) to be? Potassium Sulfate molecular weight Molar mass of K2SO4 = 174.2592 g/mol Convert grams Potassium Sulfate to moles or moles Potassium Sulfate to grams Molecular weight calculation: 39.0983*2 + 32.065 + 15.9994*4 Percent composition by element Calculate the molecular weight of a chemical compound Enter a chemical formula: E) Cs. C) N2H6 B) 0.472 To this solution, methyl vinyl ketone (1.5 mmol) followed by 20 mol % of PdCl2 (59-60%, 35 mg) was added under a nitrogen atmosphere, then . Define symbiosis and differentiate among mutualism, commensalism, syntrophy, parasitism, and amensalism, using examples. B) 1 and 3 only E) none of the above, When the equation, ___O2 + ___C5H12 ___CO2 + ___H2O is balanced, the coefficient: See Answer One mole of copper (II) sulfate, CuSO4 , contains ________ O atoms. E) none of the above, Bauxite is an ore that contains the element aluminum. One mole of iron (III) sulfate contains 12 moles of oxygen atoms. one mole of potassium sulfate contains what 4 moles of oxygen calculate the molar mass of ammonium carbonate 96.09 g/mol calculate the molar mass of calcium nitrate 164.10 g/mol what is the molar mass of aluminum sulfate ? 16.0 g B. If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams, what is the mass percent of aluminum in this bauxite ore? What is the molecular formula of a compound given the molar mass of the compound is 186.5 grams and the empirical formula is C2H7? E) None of 1, 2, and 3, What type of a reaction occurs when potassium metal reacts with fluorine gas? You would then divide the moles and potassium hydroxide by its volume, the measured volume of 0.1 leaders in order to determine the concentration of potassium . 3 moles of potassium. E) none of the above, A 15.5 gram sample of diphosphorous pentoxide contains how many grams of phosphorous? D) 1, 1, 1, 1 How many grams of ore are needed to obtain of Fe? C) NaCl (aq) 1 mole of N2 contains 12.0441024 N molecules. E) All the above ions are in the complete ionic equation. E) none of the above, What is the mass percent of hydrogen in water? A) synthesis/combination A) C2H3O2 History. Which contains the. indicates the simplest ratio of atoms in the compound, The simplest formula for hydrogen peroxide is HO. D) 3 moles of potassium. In15 grams there are then 86.1 millimoles of K2SO4. D) 20 B) 2, 1, 2, 2 b) a high-speed train with a mass of $180,000 \mathrm{~kg}$ and a speed of $300 \mathrm{~km} / \mathrm{h}$, Explanation: Here, we use the mole as we would use any other collective number: a dozen eggs; a Bakers' dozen; a Botany Bay dozen. B) is the same as the molecular formula. A) 2.44 A) any liquid with another compound dissolved in it. B) C E) none of the above An airplane traveling at $510 \mathrm{~km} / \mathrm{h}$ needs to reverse its course. D) I- Find the amount (mol) of one substance from the volume and molarity. With potassium carbonate; In dimethyl sulfoxide; at 80; for 4h; . The milk-secreting glandular cells of the breast are arranged in grapelike formation called formation \_\_\_\_\_\_\_\_\_\_. A. A) 1297 Hence, 1 mol of the same contains 2 mol of potassium, 1 mol of sulfur and 4 mol of oxygen. In one mole of. A) 2, 1, 1, 3 . C) 19.0 C) magnesium bromide An iron ore sample is found to be 35.00% Fe by mass. What is the formula of the oxide? The masses for a mole of each element are given on the periodic table as the atomic weight. E. none of the above, A 500. gram iron ore sample was determined to contain 242 grams of iron. 9.Convert 5.75 mol Ca to atoms. 3.0 moles N20s C. 12.0 moles silver D. 3.0 moles water 6. D) 4.06 1023 3.5. We reviewed their content and use your feedback to keep the quality high. E) none of the above, How many molecules of sulfur trioxide are in 78.0 grams? D) double-displacement C) 1, 3, 2, 1 Echemi provides reliable and worth Potassium Sulfate price analysis & professional market analysis, helping you to find the best Potassium Sulfate suppliers Content of sulfate Transfer about 1g of Glucosamine Sulfate Potassium Chloride,accurately weighed,to a 250-mLbeaker,and . B) combustion reaction B) CaCl2. How many moles are there in 82.5 grams of iron? D) double-displacement B) acid-base neutralization E) none of the above, What type of a reaction occurs when a hydrochloric acid solution is mixed with a sodium bicarbonate solution? D) 4, In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with one of the products? C) 39.3 C) 0.2500 Purchase this answer to view it. C) 51.6 D) 2Na + 2H2O 2NaOH (aq) + H2 (g) C) 10 C) indicates the structure of the molecule. Solved One mole of ammonium nitrate contains: Solved If a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles and ie f-butyl 2,6-diazaspiro- [3.3]heptane-2-carboxylate (23.6 mg, 49.1 mol, 0.6 eq. E) none of the above, 26) All of the following compounds are soluble in water EXCEPT: In comparing a balloon containing 25 grams of helium to a balloon containing 25 grams of neon, which one of the following statements is TRUE? A) 1 and 2 only 96.09 g/mol What is the percent by mass of oxygen in water? C) Na + H2O NaOH (aq) + H2 (g) D) gas evolution A) 221 E) None of A, B, and C. One mole of potassium sulfate contains: The pH of pure water at 37C37^{\circ} \mathrm{C}37C is 6.806.806.80. B) combustion reaction. 8.Convert 8.88 mol of dinitrogen tetrahydride to molecules. A. C) 2 A 42.7 gram sample of potassium nitrate contains how many grams of potassium? E) any of the above, What type of reaction is the generic equation ab=a+b C) oxidation-reduction To determine its molecular formula, it is necessary to know. The concentration for the chloride is the same as before. B) 9.00 g H2O Which of the following statements about writing molecular, complete and net ionic equations is FALSE? C) 1.33 One mole of boron has a mass of ________ g. One mole of oxygen gas has a mass of ________ g. What is the mass in grams of 5.40 moles of lithium? Solving for the mass of the master of neon. CO2 One mole is defined as the amount of substance that contains as many particles as the number of atoms in exactly 12 g of carbon-12, which is 6.02 10 23 particles. B) 2 moles of sulfur. What does one mole of potassium sulfate contain? B) 2HCl + K(OH)2 2H2O + KCl2 C) 0.53 C) K2O3 3. A) H2O (l) How many moles of bromine gas are in 37.7 grams? and stirred until the solution became homogeneous. ___potassium iodide + ___lead (II) acetate ___lead (II) iodide +___potassium acetate B) 158.9 A) 2.33 Given the following percent composition, what is the molecular formula? A) Pb2+, NO3- A 15.5 gram sample of diphosphorous pentoxide contains how many grams of phosphorous? D) C5H12O2 A) 5.87 1023 E) none of the above, Determine the empirical formula of a compound containing 83% potassium and 17.0% oxygen. B) K+ C) 2 moles of oxygen atoms. A) 2.24 \text{$\mathrm{SO}_2 \mathrm{Cl}_2+\mathrm{HI} \longrightarrow \mathrm{H}_2 \mathrm{~S}+\mathrm{H}_2 \mathrm{O}+\mathrm{HCl}+\mathrm{I}_2$} D) Coefficients are added to compounds to ensure both sides of the reaction have equal numbers of each atom. C) 31.3 C) K+, Pb2+ C) empirical, possibly molecular. The mass of H 20 is equal to the mass of the moles. In chemistry, we use the unit 'mole' to represent the amount of substance containing 6.02 10 23 particles. D) 1 mole of nitrogen. C) 295.1 In one roll, we have one mole of chloride. 1. This is from the items of Neon. B) 2 moles of sulfur. B) 102.09 g/mol E) none of the above, How many molecules of nitrogen monoxide are in a 22.5 gram sample? D) C2H14 Mole removal is frequently completed working with surgical procedures. B) acid-base neutralization The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon. D) light C) C6H12O3 C) 1.62 x 1024 C ) 26.7. Wiki User. E) none of the above, How many moles of Pb are in 4.71 1021 Pb atoms? Two moles of potassium can be converted by dividing the mass of the pot by the mass of the pot. E) none of the above, Bananas cost 33 per pound. E) none of the above, How many atoms are present in 4.5 moles? 2 moles of sulfur C. 1 mole of potassium D. 3 moles of potassium E. none of the above 2. D) NH4Cl. D) Sodium chloride is insoluble in water. Gram equivalent wt. One mole of ammonium nitrite contains: A) 78.05 g/mol A) NaCl. Pb(NO3)2(aq) + 2KI(aq) PbI2(s) + 2KNO3(aq) It contains one sulfur atom. C) 6.76 A) CHO E) none of the above, Indicates the simplest ratio of atoms in the compound, The simplest formula for hydrogen peroxide is HO. A) 22.99 B) when an alkali metal reacts with an alkaline earth metal B) An empirical formula gives the smallest whole number ratio of each type of atom in a molecule. Calculate the molar mass of ammonium carbonate. Why? B) 0.371 D) 4 C) magnesium iodide c. It has a molar mass of 174.3g.. B) decomposition How many moles of Pb are in 4.71 1021 Pb atoms? A) 0.236 You have 10.0 g each of sodium, iron, silver, zinc and neon. Which of the following statements about balancing reactions is FALSE? What is the molar mass of aluminum sulfate? One mole of potassium sulfate contains: A) 4 moles of oxygen. 60.34 mobile plus 1.22 mole. D) 5 one sulfur atom four oxygen atoms you get that from the 4 subscript. A) MnO B) decomposition C) CH4 How many moles of Cu are in 1.48 1025 Cu atoms? How many moles are there in 17.5 grams of sodium? A compound has a molar mass of 180.15 g/mol. D) 0.974 C) 28.0 g N2 C) 2.7 x 1024 B) 2 moles of oxygen. C) Mg2O3 of O2 is: How many atoms are in 1.50 moles of fluorine gas? B) 9.24 10 grams Potassium Sulfate to mol = 0.05739 mol. A) No, boiling water is a physical change. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. A) 0.2 22.4. 100 grams Potassium Sulfate to mol = 0.57386 mol. C) single displacement Calculate the mass of one mol of oxygen gas. A) 2.64 1026 D) 164.10 g/mol 22) Which of the following compounds is INSOLUBLE? E) none of the above. D) 3.00 This problem has been solved! B) 4 A cation is the positive. Which compound would not form ions in the complete ionic equation? D) 6.022 10 23 For one more of neon, 2 times 10 to E) no reaction, When a solution of MgCl2 and one of AgNO3 are mixed, the net ionic equation is: 3. E) none of the above, Calculate the molar mass of calcium nitrate. If 17.1g of potassium reacts with 14.3g of fluorine, which reactant is the limiting reactant, and what mass of potassium fluoride can theoretically be produced? Use standard atmospheric conditions. 0.0098 mol) was dissolved in acetone(20 ml) followed by addition of potassium carbonate(1.5 g, 0.025 mol), dime-thyl sulfate(1.8 g, 0.0147 mol) at room temperature, fur-ther maintained under reux for 3-4 h, cooled to room temperature and ltered to remove excess potassium car-bonate. E) none of the above, Ddx II: Tinnitis, epistaxis, and weakness, Late Adulthood: Physical and Cognitive Develo, Lecture 8 Degenerative/ Chronic D/O of the Ne. E) none of the above, What type of reaction is the generic equation A + BC AC + B? D) aluminum sulfate One Mole Of Potassium Sulfate Contains. B) 1 and 3 only B) 1 mole of potassium. PUGVIEW FETCH ERROR: 403 Forbidden National Center for Biotechnology Information 8600 Rockville Pike, Bethesda, MD, 20894 USA Contact Policies FOIA HHS Vulnerability Disclosure National Library of Medicine National Institutes of Health if a sample of carbon dioxide contains 3.8 moles of oxygen atoms, how many moles of carbon dioxide are in the sample? . O It has a mass. When two sparingly soluble salts B) calcium carbonate C) 0.142 "Normalizing" the two given values to those dimensions we obtain the answer. D) 1.31 E) none of the above, How many atoms of lithium are in 18.7 g? Calculating the mass of one mole of a species from its formula. In order to find the volume I can write, I have to substitute the value for the number of moles. D) 13.5 B) 4.000 B) 10.02 g/mol D) 5.050 B) 13.3 Q. how many moles of fluorine are in 3.2 moles of xenon hexafluoride? B) 48.4 B) CHO2 A) 4.25 1025 D) 11.2 A) the properties of hydrogen peroxide. This means that when you dissolve one mole of sodium chloride in water, you will get one mole of aqueous sodium cations and one mole of aqueous chloride anions. D) 79.9 C) 2, 3, 6, 1 Which contains the smallest number of moles? Q: A solution contains 1.42x10-2 M ammonium sulfate and 5.66x10-3 M ammonium chromate. Experts are tested by Chegg as specialists in their subject area. D) indicates the simplest ratio of atoms in the compound. E) none of the above, What is the mass of 1.56 1021 atoms of magnesium in grams? A) 18.02 Coefficients are added to compounds to ensure both sides of the reaction have equal numbers of each atom. A) NH E) none of the above, One mole of ammonium nitrate contains: B) 4.00 C) The solution will taste salty. contains 6.02 x 1022 molecules O It contains one sulfur atom none of the answers are correct. E) none of the above, A compound composed of only carbon and hydrogen is 25.2% hydrogen by mass. E) none of the above, What is the mass of 3.09 1024 atoms of sulfur in grams? Which of the following statements about the mole is FALSE? D) 3 moles of potassium E) none of the above 14) 14) The oxygen-to-hydrogen mass ratio of water is always 80 is an example of what fundamental law? D) 11.4 B) The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon. C) 6 B) S + H2O SOH (aq) + H (g) A) C3H4O3 B) C6H6 E) none of the above, An unknown acid has a molar mass of 60.06 g/mol. B) 3.8 E) none of the above, A reaction in which a substance reacts with oxygen, emitting heat and forming oxygen-containing compounds is an example of a(n): A) The mass of 1 mole of carbon is greater than the mass of 1 mole of magnesium. A) SO42- B) 2, 2, 1, 2 A) An empirical formula represents a molecule. B) solid formation when chemicals are contacted with each other B) CH2O B) AgO2 D) 1, 1, 2, 2 E) none of the above, What are the coefficients for the following reaction when it is properly balanced? B) C3H D) not enough information What is mass of 0.560 moles of chlorine gas? 2003-2022 Chegg Inc. All rights reserved. B) 3 B) an ionic compound with water dissolved in it. B) MgO2 Answer: D, 21) An aqueous solution is: B) (g) E) Cr3O2, An iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. D) 37.1 C) 5.60 C) No, the formation of gas bubbles is a secondary chemical reaction which is ignored. The amount went up by 8.02 g. per mole. D) K2O E) none of the above, What is the molecular equation for the reaction of hydrochloric acid with potassium hydroxide? A) magnesium phosphate Label: PSORIZIDE ULTRA- potassium bromide, nickel sulfate, and zinc bromide tablet A) synthesis/combination One mole of potassium sulfate contains: 4 moles of oxygen. You have 10.0 g each of sodium, iron, silver, zinc and neon. A) 2 moles of nitrogen atoms. E) no reaction, A precipitate is expected to be formed when an aqueous solution of sodium sulfate is added to an aqueous solution of: E) none of the above, The mass of 1 mole of magnesium is greater than the mass of 1 mole of carbon, Which of the following contains 9.02 1023 atoms? Which ion(s) would NOT be present in the net ionic equation? A. sodium B. iron C. silver D. zinc E. neorn 4. D) 44.01 2H2S(g)+3O2(g)2H2O(l)+2SO2(g);H=1124kJ The density of sulfur dioxide at 25C and 1.00 atm is 2.62 g/L, and the molar heat capacity is 30.2 J/(mol C). 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