Question #191328

Silver tarnishes in the presence of hydrogen sulfide and oxygen according to the below reaction.

How many liters of O2 at 100.˚C and 115 kPa would be needed to react with 10.00 grams of silver?

4Ag + 2H2S + O2 —> 2Ag2S + 2H2O

Expert's answer

By ideal gas equation -

PV = NRT.......1)

P =115 KPa = 115000 KPa

T=100 =373.15 k

R = 8.314 m

m = given mass M= Molar mass

N 0.093 moles

now putting all these value in equation ....1) we get-

115000

V=

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