# Problem: The following reaction forms 15.1 g of Ag(s):What total volume of gas forms if it is collected over water at a temperature of 25 oC and a total pressure of 753 mm Hg ?

###### FREE Expert Solution

Dalton’s Law

at 25°C, water has a vapor pressure of 23.78 mmHg

${\mathbit{P}}_{{\mathbf{H}}_{\mathbf{2}}}\mathbf{=}$729.22 mm Hg

Balanced equation: 2 Ag2O(s) → 4 Ag(s) + O2(g)

• Mole ratio: 4 moles Ag for every 1 mole O2

0.0349 mol O2

Ideal gas equation:

90% (276 ratings) ###### Problem Details

The following reaction forms 15.1 g of Ag(s):

What total volume of gas forms if it is collected over water at a temperature of 25 oC and a total pressure of 753 mm Hg ?

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Our tutors have indicated that to solve this problem you will need to apply the Collecting Gas Over Water concept. If you need more Collecting Gas Over Water practice, you can also practice Collecting Gas Over Water practice problems.