Short answer: 1. Sodium reacts with water to produce hydrogen gas and sodium hydroxide. If 15 g of sodium are added to 75 grams of water, calculate the mass of hydrogen gas that is produced. 2. Calculate the mass (in grams) of sodium sulfide that is needed to make 350 mL of a 0.50 mol/L solution. 3.In a lab 42.6 mL. of sulfuric acid precipitates exactly 3.260 g of barium sulfate from a solution of barium hydroxide. What is the molar concentration of the sulfuric acid?
Short answer: 1. Sodium reacts with water to produce hydrogen gas and sodium hydroxide. If 15 g of sodium are added to 75 grams of water, calculate the mass of hydrogen gas that is produced. 2. Calculate the mass (in grams) of sodium sulfide that is needed to make 350 mL of a 0.50 mol/L solution. 3.In a lab 42.6 mL. of sulfuric acid precipitates exactly 3.260 g of barium sulfate from a solution of barium hydroxide. What is the molar concentration of the sulfuric acid?
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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1. Sodium reacts with water to produce hydrogen gas and sodium hydroxide.
If 15 g of sodium are added to 75 grams of water, calculate the mass of hydrogen gas that is produced.
2. Calculate the mass (in grams) of sodium sulfide that is needed to make 350 mL of a 0.50 mol/L solution.
3.In a lab 42.6 mL. of sulfuric acid precipitates exactly 3.260 g of barium sulfate from a solution of barium hydroxide. What is the molar concentration of the sulfuric acid?
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