112 ml of a gas produced at STP by the action of 412 mg of alcohol ROH with excess CH3MgI. The Molecular mass of alcohol is
reaction:
CH ₃ Mg I +ROH _____ Ch4 + R - OMg-I
a) 32g b)41.2g c)82.4g d)156 g
Answers
Answered by
27
Answer:
option c = 82.4g
Explanation:
At STP one mole of a gas occupies 22.4 L
At STP 112ml is 1/200 moles hence looking at the reaction 1/200 moles of ROH gives 1/200 moles of CH4.
Given that 412 mg is required in this reaction means 1/200 moles of ROH is 412mg hence 1 mole = 412 ×200 mg
Hence the answer is C.
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