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An aqueous solution containing $35\mathrm{.}4g$ of an unknown molecular $($non$-$electrolyte$)$ compound in $150\mathrm{.}2g$ of water was found to have a freezing point of $-1\mathrm{.}2C.$

Part A

Calculate the molar mass of the unknown compound. $($Use $K_f=1\mathrm{.}86\frac{C}{m})$

Express your answer using two significant figures.

$\sqrt[]{}A0?$

$M=\frac{g}{m}ol$

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