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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: peterpan1372 on September 07, 2017, 07:48:30 AM

Title: Molecular Formula
Post by: peterpan1372 on September 07, 2017, 07:48:30 AM

Please can someone help me out with this one?

An organic compound is found to contain 6parts of carbon, 1 part pf hydrogen and 8 parts of oxygen by mass.

6g of a gaseous sample of the compund would have a volume of 2.4 dm^3 at a room temperature and pressure.

What is the right molecular formula?

(A_r: H=1; C=12; O=16)

(1mole of any gas occupies 24dm^3 at room temperature and pressure)

Title: Re: Molecular Formula
Post by: Borek on September 07, 2017, 08:04:32 AM

You have to show your attempts at solving the problem to receive help, it is a forum policy.

Title: Re: Molecular Formula
Post by: peterpan1372 on September 07, 2017, 08:28:20 AM

Well, we have 15moles=200g..

but from here on I do not know anything...

Title: Re: Molecular Formula
Post by: sjb on September 07, 2017, 01:53:04 PM

Where has that come from?