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September 3, 2015

Homework Help: science

Posted by divya on Tuesday, November 13, 2012 at 2:42am.

1.)A sample of ammonium nitrate contains 70 g of nitrogen.what is the mass of the sample?
2.)no. of gram atom of ca in 100 g of caco3(mol.wt. of caco3=100g)

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