A student designs an ammeter (a device that measures electrical current) that is based on the...

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Chemistry

A student designs an ammeter (a device that measures electricalcurrent) that is based on the electrolysis of water into hydrogenand oxygen gases. When electrical current of unknown magnitude isrun through the device for 2.50 min , 14.4 mL of water-saturatedH2(g) is collected. The temperature and pressure of the system are25 âˆ˜C and 715 torr .
Calculate the magnitude of the current in amperes if the numberof moles of hydrogen gas produced is 5.36Ã—10âˆ’4 mol .
2H2O----> 2H2(g) + O2(g)

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3.6 Ratings (553 Votes)

If there is nothing but hydrogen H2 and water vapor in the gas collectedfirst we must find out how much water vapor is in the gas At 25C 298K the vapor pressure of water is 2375 torr See Answer

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