Problem: In the following reaction, 81.2 mL of O 2(g) is collected over water at 23.0°C and a barometric pressure of 751 mm Hg. What must have been the mass in grams of Ag2O(s) decomposed? (The vapor pressure of water at 23.0°C is 21.1 mm Hg). 2 Ag2O(s) → 4 Ag(s) + O2(g)   a) no given answer is close b) 1.49 c) 0.744 d) 2.98 e) 2.07

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Problem Details

In the following reaction, 81.2 mL of O 2(g) is collected over water at 23.0°C and a barometric pressure of 751 mm Hg. What must have been the mass in grams of Ag2O(s) decomposed? (The vapor pressure of water at 23.0°C is 21.1 mm Hg).

2 Ag2O(s) → 4 Ag(s) + O2(g)

 

a) no given answer is close

b) 1.49

c) 0.744

d) 2.98

e) 2.07

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Based on our data, we think this problem is relevant for Professor Gupta's class at UML.