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Q. Molarity of liquid $HCl$ will be, if density of solution is $1.17 \,g / cc$

MHT CETMHT CET 2020

Solution:

Density $=1.17 \,g / cc$ ( Given )
As $d=\frac{\text { Mass }}{\text { Volume }}$
Volume $=1 \,c c $
$\therefore $ Mass $=d=1.17\, g$
Molarity $=\frac{\text { No. of moles }}{\text { Volume in litre }}=\frac{1.17 \times 1000}{36.5 \times 1}$
$=\frac{1170}{36.5}=32.05 \,M$