a. A 4.053-g sample of NaHCO3 is dissolved in enough water to make 280.0 mL of solution.Molarity =Mb. A 182.6-mg sample of K2 Cr2 O7 is dissolved in enough water to make 510.0 mL of solution.Molarity =Mc. A 0.1029-g sample of copper is dissolved in 35 ml of concentrated HNO3 to form Cu+ ions and then water is added to make a total volume of 200.0 mL. (Calculatethe molarity of Cu²+ ).Molarity =M

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a. A 4.053-g sample of NaHCO3 is dissolved in enough water to make 280.0 ml of solution. Molarity = M

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 39QAP: 39. Standard solutions of calcium ion used to test for water hardness are prepared by dissolving...

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

a. A 4.053-g sample of NaHCO3 is dissolved in enough water to make 280.0 mL of solution.
Molarity =
M
b. A 182.6-mg sample of K2 Cr2 O7 is dissolved in enough water to make 510.0 mL of solution.
Molarity =
M
c. A 0.1029-g sample of copper is dissolved in 35 ml of concentrated HNO3 to form Cu+ ions and then water is added to make a total volume of 200.0 mL. (Calculate
the molarity of Cu²+ ).
Molarity =
M

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