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Topic: Find the molecular mass of alcohol...  (Read 2963 times)

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Offline devvaibhav

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Find the molecular mass of alcohol...
« on: June 11, 2011, 10:36:47 AM »
Q:- 1.12 mL of a gas is produced at STP by the action of 4.12 mg of alcohol, ROH with methyl magnesium iodide. Find the molecular mass of alcohol.

ROH + CH3MgI  :rarrow: CH4 (g) + RO-Mg+I

I have no idea how to do it..can somone assist me with doing it...any clue???

Offline rucik5

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Re: Find the molecular mass of alcohol...
« Reply #1 on: June 11, 2011, 12:31:56 PM »
How much is that in moles?

Offline Jorriss

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Re: Find the molecular mass of alcohol...
« Reply #2 on: June 11, 2011, 11:56:22 PM »
I'll give some guidelines.

You can figure out the moles of methane produced.

There are stoichiometric relationships between moles of methane produced and moles of reactants used.

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