# chemistry

How would a chemist make up 100g of 10% aqueous solution of HCl (using 12M HCl)

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1. 12M HCl is about 37% HCl.
10% x 100 g = 37%x
x = 10*100/37 = about 27 g
Take 27 g 12M HCl and add water to make 100 g.

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posted by DrBob222

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