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26-09-2016
Chemistry

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20 g of NaCl and 45 g of iron are mixed. What is the percent of NaCl?

Respuesta :

26-09-2016

100% = 20g + 45g
100% = 65g

100% ------------ 65g
%NaCl ---------- 20g

%NaCl = 20g*100% / 65g ≈ 30,8%

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