Question

Molarity of liquid $HCl$ with density equal to $1.17g/cc$ is:

• A. $36.5$
• B. $18.25$
• C. $32.05$
• D. $4.65$

Answer 1

Answer: (C)

$32.05$

Given that

Density of $HCl=1.17g/cc$

Molar mass of $HCl=1+35.5=36.5g/mol$

Now we find

Molarity of $HCl=\frac{density}{molarmass}\times 1000$

So,

$Molarity=\frac{1.17}{36.5}\times 1000=32.05M$

Hence,

Molarity of $HCl$ with density equal to $1.17g/ccis\mathrm{32.05.}$