Asked by Michael
Assume that 5.00 grams of zinc react with excess HCl according to the following equation:
Zn + 2HCl = ZnCl2 + H2
The hydrogen was collected over water at 20.0C and the prssure of the atmosphere is 751 mmHg. The pressure of the water vapor at 20C is 17.5 mmHg. How many moles of hydrogen gas should be produced? Determine the theoretical volume in liters of the H2 collected.
Zn + 2HCl = ZnCl2 + H2
The hydrogen was collected over water at 20.0C and the prssure of the atmosphere is 751 mmHg. The pressure of the water vapor at 20C is 17.5 mmHg. How many moles of hydrogen gas should be produced? Determine the theoretical volume in liters of the H2 collected.
Answers
Answered by
bobpursley
moles H2=molesZn=5/30=1/6
PV=nRT
V=nR(273+20)/(751-17.5)
n is 1/6, R is in units of liters*mmHg/K
verify you have the correct gas constant in those units.
PV=nRT
V=nR(273+20)/(751-17.5)
n is 1/6, R is in units of liters*mmHg/K
verify you have the correct gas constant in those units.
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