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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: lonelygrub on July 23, 2009, 10:08:03 PM

Title: Simple Chem question...i think, but i don't know it.
Post by: lonelygrub on July 23, 2009, 10:08:03 PM

A certain element X forms a compound with element Y in which there is one atom of X for every four atoms of Y. In this compound, 2.65 g of X are combined with 3.16 g of Y. When X reacts with oxygen, it is found that 2.23 g of X combines with 0.600 g of O, compound is formed containing one atom of X for each two atoms of O. Calculate the atomic mass of Y.

Title: Re: Simple Chem question...i think, but i don't know it.
Post by: AWK on July 24, 2009, 01:17:19 AM

Quote

it is found that 2.23 g of X combines with 0.600 g of O, compound is formed containing one atom of X for each two atoms of O. Calculate the atomic mass of Y.

Start from this part - you can calculate an atomic mass of X - of course, balanced reaction is needed

Title: Re: Simple Chem question...i think, but i don't know it.
Post by: lonelygrub on July 24, 2009, 03:27:41 AM

I have it :) :) :) :)

Thank you for your input