A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 1.50 min, 14.7 mL of water-saturated H₂ (g) is collected. The temperature and pressure of the system are 25 °C and 715 torr. Part A How many moles of hydrogen gas are produced? Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) 5.47x10-4 mol Submit Previous Answers Correct Using the stoichometric coefficients in the chemical equation: 2H₂O(1)→2H₂(g) + O2(g) you can determine that 2.73x10-4 mol of oxygen gas is produced, which is half the number of moles of hydrogen gas produced. Part B Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 5.47x10-4 mol (from part A).

A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 1.50 min, 14.7 mL of water-saturated H₂ (g) is collected. The temperature and pressure of the system are 25 °C and 715 torr. Part A How many moles of hydrogen gas are produced? Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) 5.47x10-4 mol Submit Previous Answers Correct Using the stoichometric coefficients in the chemical equation: 2H₂O(1)→2H₂(g) + O2(g) you can determine that 2.73x10-4 mol of oxygen gas is produced, which is half the number of moles of hydrogen gas produced. Part B Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 5.47x10-4 mol (from part A).

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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