A boric acid stock solution was prepared by dissolving 19 g boric acid in a small amount of purified water USP and then adding sufficient volume of purified water USP to make up the volume to 1000 ml. Calculate the volume of this solution needed to prepare 25 ml of 0.95% boric acid solution in purified water.A solution of sodium chloride contains 77 mEq/L. Calculate its osmolar strength in terms of milliosmoles per liter. Assume complete dissociation.

The first part of the question is asking for the volume of a stock solution needed to prepare a…

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10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 47E

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A boric acid stock solution was prepared by dissolving 19 g boric acid in a small amount of purified water USP and then adding sufficient volume of purified water USP to make up the volume to 1000 ml. Calculate the volume of this solution needed to prepare 25 ml of 0.95% boric acid solution in purified water.
A solution of sodium chloride contains 77 mEq/L. Calculate its osmolar strength in terms of milliosmoles per liter. Assume complete dissociation.

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