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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Ghost1716 on May 26, 2016, 11:50:04 AM

Title: Problem with homework
Post by: Ghost1716 on May 26, 2016, 11:50:04 AM

The question is :  If there are 3.33 × 10^20 atoms of nitrogen in (NH4)2C2O4,how much mg of (NH4)2C2O4 are there?
I would just like to know what I'm suppose to do to find it.I tried many times and i still couldn't find it.

Title: Re: Problem with homework
Post by: AWK on May 26, 2016, 12:29:54 PM

This is exceptionally simple problem
atoms of N => moles of N => moles of oxalate => mass of oxalate
You need only look at molecular formula carefully and convert grams to miligrams.