(PART A) Calculate the mass percent of a solution containing 15.0 gg of Na2SO4Na2SO4 and 83.5 gg of H2OH2O. Mass Percent = _____________________ % (m/m)   (PART B) What is the molarity of a solution containing 14.4 gg of KClKCl in 254 mLmL of solution? Express the concentration in molarity to three significant figures.  Molarity = _____________________________   (PART C)  You need 400. mLmL of a 6.0 %% (m/vm/v) glucose solution. If you have a 25 %% (m/vm/v) glucose solution on hand, how many milliliters of this solution do you need?   Express your answer to two significant figures and include the appropriate units.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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(PART A)

Calculate the mass percent of a solution containing 15.0 gg of Na2SO4Na2SO4 and 83.5 gg of H2OH2O.

Mass Percent = _____________________ % (m/m)

 

(PART B)

What is the molarity of a solution containing 14.4 gg of KClKCl in 254 mLmL of solution? Express the concentration in molarity to three significant figures. 

Molarity = _____________________________

 

(PART C) 

You need 400. mLmL of a 6.0 %% (m/vm/v) glucose solution. If you have a 25 %% (m/vm/v) glucose solution on hand, how many milliliters of this solution do you need?
 
Express your answer to two significant figures and include the appropriate units.
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