Fall 07 HW3

# Fall 07 HW3 - Homework Assignment#2 Name Laboratory...

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Homework Assignment #2 Name____________________________ Laboratory Section (circle one) MW1.30 MW6.30 TTh7 1. a) Chapter 3, Problem 24, 34 (parts a, b, and c ONLY), 38, 44, 54, 62, 64, 101, 103 2. How many iron (Fe) atoms are in 65.67 g of Fe? 3. A 4.125 g sample of an unknown hydrocarbon undergoes combustion. The products are 9.377 g of CO 2 gas and 3.839 g of water vapor. a) Calculate the empirical formula of the hydrocarbon that contains carbon, hydrogen, and oxygen. b) If the molar mass of the compound is 116.156 g/mol, what is the molecular formula? 4. Chapter 3, Problem 72, 74, 82—Show all stoichiometric conversion factors used to solve the problem
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Unformatted text preview: 5. Calculate the following quantities: a. the molarity of a solution made by adding 43.5 g of silver nitrate to enough water to make 665 mL of solution b. the volume of a 1.401 M CuSO 4 solution that contains 34.81g of solute c. final volume of solution when 0.348 M calcium chloride solution is diluted to make a 0.100 M solution. d. the concentration of chloride ions before the dilution is made in part c. e. the concentration of chloride ions after the dilution is made in part d....
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• Fall '07
• GUPTA
• Chemistry, Atom, Ion, Name____________________________ Laboratory Section

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