QUIZ 1-chemB

# QUIZ 1-chemB - 1 A solution of hydrogen peroxide is 30.0...

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1. A solution of hydrogen peroxide is 30.0% H2O2 by mass and has a density of 1.11 g/cm3. The molarity of the solution is: (hint: assume 1000. g of this solution) 7.94 M 8.82 M 9.79 M 0.980 M none of these 2. What is the molality of a solution of 50.0 g of propanol (C3H7OH) in 152 mL water, if the density of water is 1.00 g/mL? 5.47 m 0.00547 m 0.833 m 0.183 m none of these 3. How many milliliters of 18.4 M H2SO4 are needed to prepare 600.0 mL of 0.10 M H2SO4? 1.8 mL 2.7 mL 3.3 mL 4.0 mL 4.6 mL 4. The balanced equation for the reaction of bromate ion with bromide in acidic solution is given by: BrO3-+ 5Br– + 6H+ -> 3Br2 + 3H2O At a particular instant in time, the value of is 2.0 x 10–3 mol/L s. What is the value of in the same units?

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1.2 x 10-3 6.0 x 10-3 3.3 x 10-3 3.3 x 10-5 2.0 x 10-3 5. For the reaction between O2 and NO, experiments showed the following results: When the initial concentration of oxygen doubled (keep [NO]0 the same), the initial rate of reaction quadrupled; When the initial concentration of NO doubled (keep [O2]0 the same), the initial rate of
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## This note was uploaded on 10/14/2009 for the course CHEM 185 taught by Professor Wen during the Spring '07 term at Coastline Community College.

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QUIZ 1-chemB - 1 A solution of hydrogen peroxide is 30.0...

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