A $40 \% \mathrm{HCl}$ solution has density $1.2 \mathrm{~g} \mathrm{~mL}^{-1}$. The molarity of the solution is nearly ____

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Aicharya · Accepted Answer

As, density (d) of $\mathrm{HCl}$ solution is given $(p c)$ $\left(1.2 \mathrm{~g} \mathrm{~mL}^{-1}\right)$, the percentage strength of the solution $(40 \%)$ is of $(w / w)$ type. $\begin{aligned} \Rightarrow \text { Molarity } & =\frac{p c(w / w) \times d\left(\mathrm{~g} \mathrm{~mL}^{-1}\right) \times 10}{M_{\mathrm{HCl}}} \ & =\frac{40 \times 1.2 \times 10}{36.5}=13.15 \simeq 13 \mathrm{M} \end{aligned}$

A \(40 \% \mathrm{HCl}\) solution has density \(1.2 \mathrm{~g} \mathrm{~mL}^{-1}\). The molarity of the…

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