Homework Help: Chemistry

Posted by Mat on Thursday, September 4, 2008 at 3:29am.

A silver-copper alloy had a mass of 0.1264g. When the alloy was dissolved in nitric acid and the silver precipitated as silver chloride, the precipitate had a mass of 0.1375g. Calculate the percent of silver in the alloy.

So, how would you do this? Is it possible to use moles to find the answer?

Chemistry - Dr Russ, Thursday, September 4, 2008 at 7:41am
Use the RAMs for silver and chlorine to find the mass (M_Ag) of silver in the precipitate by simple proportion.

The percentage is then
M_Ag x100%/0.1264

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