A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric acid (see the figure). The hydrochloric acid reacts with the metal to produce hydrogen gas, which is then collected over water. Suppose a student carries out this reaction and collects a total of 147.6 mL of gas at a pressure of 743 mmHg and a temperature of 25° C. What mass of hydrogen gas (in mg) does the student collect? (The vapor pressure of water is 23.78 mmHg at 25° C.) Collecting a Gas over Water -Н2 Hydrogen plus water vapor - Zn -HCl -Н-0 Express the mass to three significant figures and include the appropriate units. HA Value Units т 3

A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric acid (see the figure). The hydrochloric acid reacts with the metal to produce hydrogen gas, which is then collected over water. Suppose a student carries out this reaction and collects a total of 147.6 mL of gas at a pressure of 743 mmHg and a temperature of 25° C. What mass of hydrogen gas (in mg) does the student collect? (The vapor pressure of water is 23.78 mmHg at 25° C.) Collecting a Gas over Water -Н2 Hydrogen plus water vapor - Zn -HCl -Н-0 Express the mass to three significant figures and include the appropriate units. HA Value Units т 3

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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