Chemistry · 2021
JEE Main · 16 March 2021, Shift 1 · Q51
A 6.50 molal solution of KOH (aq.) has a density of 1.89 g cm^-3. The molarity of the solution is \ \ \ \ mol dm^-3. (Round off to the Nearest…
A $\displaystyle 6.50$ molal solution of KOH (aq.) has a density of $\displaystyle 1.89 \mathrm{~g} \mathrm{~cm}^{-3}$. The molarity of the solution is \_\_\_\_ $\displaystyle \mathrm{mol} \mathrm{dm}^{-3}$. (Round off to the Nearest Integer).
[Atomic masses : K : $\displaystyle 39.0$ u; O : $\displaystyle 16.0$ u; H : $\displaystyle 1.0$ u]
Official answer
9
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