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  3. Chemistry
  4. Concentrated hydrochloric acid contains 37 % HCl (by mass). The density of this solution is 1.18 g / mL. The molarity (conc. in mol L L -1 ) of solution is

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Q. Concentrated hydrochloric acid contains $37 \% HCl$ (by mass). The density of this solution is $1.18\, g / mL$. The molarity (conc. in mol L $L ^{-1}$ ) of solution is

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Solution:

As in $78$
$\frac{37 \times 1000 \times 1.18}{100 \times 36.5}=12\, M$