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  4. 40 % w / V NaCl solution (specific gravity =1.12 ) is equivalent to

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Q. $40 \% w / V NaCl$ solution (specific gravity $=1.12$ ) is equivalent to

Some Basic Concepts of Chemistry

Solution:

$100 \,mL$ solution $=100 \times 1.12=112 \,g$

$112\, g$ solution consists of $40\, g\, NaCl$

$10^{6} \,g$ solution consists of $=\frac{40}{112} \times 10^{6}=3.57 \times 10^{5}\, ppm$