Chapter 3: Q53 E (page 171)
Chapter 3: Q53 E (page 171)
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Get started for freeDetermine the number of moles of compound and the number of moles of each type of atom in each of the following:
(a) 25.0 g of propylene, C3H6
(b) 3.06×10−3 g of the amino acid glycine, C2H5NO2
(c) 25 lb of the herbicide Treflan, C13H16N2O4F (1 lb = 454 g)
(d) 0.125 kg of the insecticide Paris Green, Cu4(AsO3)2(CH3CO2)2
(e) 325 mg of aspirin, C6H4(CO2H) (CO2CH3)
What is the molecular formula of a compound with a percent composition of 49.47% C, 5.201% H, 28.84% N, 16.48% O, and a molecular mass of 194.2 amu?
Question: Consider this question: What is the molarity of HCl if 35.23ml of a solution of HCl contain 0.3366g of HCl?
(a) Outline the steps necessary to answer the question.
(b) Answer the question.
Calculate the molar mass of each of the following compounds:
(a) hydrogen fluoride, HF
(b) ammonia, NH3
(c) nitric acid, HNO3
(d) silver sulfate, Ag2SO4
(e) boric acid, B(OH)3
Calculate the molar mass of each of the following:
(a) S8
(b) C5H12
(c) Sc2(SO4)3
(d) CH3COCH3 (acetone)
(e) C6H12O6(glucose)
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