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### Exercise on Preparing Solutions **Question 42:** How would you prepare 1.00 L of a 0.50-M solution of each of the following? a. **0.250 M NaOH** from solid NaOH b. **0.250 M NaOH** from 1.00 M NaOH stock solution c. **0.100 M K₂CrO₄** from solid K₂CrO₄ d. **0.100 M K₂CrO₄** from 1.75 M K₂CrO₄ stock solution **Question 43:** How would you prepare the following solutions from concentrated reagents or salts? a. H₂SO₄ from "concentrated" (18 M) sulfuric acid b. HCl from "concentrated" (12 M) reagent c. NiCl₂ from the salt NiCl₂ · 6H₂O d. HNO₃ from "concentrated" (16 M) reagent e. Sodium carbonate from the pure solid These exercises involve calculating the amount of solute needed—either from solid materials or a stock solution—to achieve the desired molarity in a specified volume.

### Exercise on Preparing Solutions **Question 42:** How would you prepare 1.00 L of a 0.50-M solution of each of the following? a. **0.250 M NaOH** from solid NaOH b. **0.250 M NaOH** from 1.00 M NaOH stock solution c. **0.100 M K₂CrO₄** from solid K₂CrO₄ d. **0.100 M K₂CrO₄** from 1.75 M K₂CrO₄ stock solution **Question 43:** How would you prepare the following solutions from concentrated reagents or salts? a. H₂SO₄ from "concentrated" (18 M) sulfuric acid b. HCl from "concentrated" (12 M) reagent c. NiCl₂ from the salt NiCl₂ · 6H₂O d. HNO₃ from "concentrated" (16 M) reagent e. Sodium carbonate from the pure solid These exercises involve calculating the amount of solute needed—either from solid materials or a stock solution—to achieve the desired molarity in a specified volume.

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Exercise on Preparing Solutions **Question 42:** How would you prepare 1.00 L of a 0.50-M solution of each of the following? a. **0.250 M NaOH** from solid NaOH b. **0.250 M NaOH** from 1.00 M NaOH stock solution c. **0.100 M K₂CrO₄** from solid K₂CrO₄ d. **0.100 M K₂CrO₄** from 1.75 M K₂CrO₄ stock solution **Question 43:** How would you prepare the following solutions from concentrated reagents or salts? a. H₂SO₄ from "concentrated" (18 M) sulfuric acid b. HCl from "concentrated" (12 M) reagent c. NiCl₂ from the salt NiCl₂ · 6H₂O d. HNO₃ from "concentrated" (16 M) reagent e. Sodium carbonate from the pure solid These exercises involve calculating the amount of solute needed—either from solid materials or a stock solution—to achieve the desired molarity in a specified volume.
Transcribed Image Text:### Exercise on Preparing Solutions **Question 42:** How would you prepare 1.00 L of a 0.50-M solution of each of the following? a. **0.250 M NaOH** from solid NaOH b. **0.250 M NaOH** from 1.00 M NaOH stock solution c. **0.100 M K₂CrO₄** from solid K₂CrO₄ d. **0.100 M K₂CrO₄** from 1.75 M K₂CrO₄ stock solution **Question 43:** How would you prepare the following solutions from concentrated reagents or salts? a. H₂SO₄ from "concentrated" (18 M) sulfuric acid b. HCl from "concentrated" (12 M) reagent c. NiCl₂ from the salt NiCl₂ · 6H₂O d. HNO₃ from "concentrated" (16 M) reagent e. Sodium carbonate from the pure solid These exercises involve calculating the amount of solute needed—either from solid materials or a stock solution—to achieve the desired molarity in a specified volume.
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