(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.
(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.
Introductory Chemistry: A Foundation
8th Edition
ISBN:9781285199030
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 114AP
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Question
(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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