Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasIdeal Gas Equation & problemsEasy2 minQB
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The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce hydrogen. What volume of hydrogen at 27°C and 0.831 bar will be released when 0.15 g of aluminium reacts? (Al = 27)
Options:
Answer:
A
Solution:
2Al + 2NaOH + 2H2O → 2NaAlO2 + 3H2. n(Al) = 0.15/27 = 1/180 mol, so n(H2) = (3/2)(1/180) = 1/120 mol. V = nRT/P = (1/120)(0.0831)(300)/0.831 = 0.25 L = 250 ml. Confirms Ans: (a) 250 ml.
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems
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