the equation is CaCl2 + 2AgNO3 --> AgCl Ca(NO2)2(adsbygoogle = window.adsbygoogle || []).push({});

my mix is CaCl2 and other stuff that does not react with AgNO3.

0.2918 g of mix gives 0.4462g of AgCl, what is the percent of CaCl2 in the mix?

Molar masses are CaCL2 110.98g/mol and AgCl 143.32 g/mol.

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I am not sure if this is how to do it, however...

moles of the AgCl is 0.4462/143.32 = 0.003113 mol

moles of CaCl2 is 0.4462-0.2918 = 0.1544 grams of CaCl2, then 0.1544/110.98 = 0.001391 mols of CaCl2

i don't know if that's right so far, or where to go from there. i know i need to use the ratios somewhere but ack!

please help.

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