Calculate the mass of ascorbic acid (Vitamin | vedclass

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(C) The molar mass of ascorbic acid $(C_6H_8O_6)$ is $6 	imes 12 + 8 	imes 1 + 6 	imes 16 = 176 \ g \ mol^{-1}$.Using the formula for depression in

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$6.6$

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(C) The molar mass of ascorbic acid $(C_6H_8O_6)$ is $6 	imes 12 + 8 	imes 1 + 6 	imes 16 = 176 \ g \ mol^{-1}$.Using the formula for depression in freezing point: $\Delta T_f = K_f 	imes m$,where $m$ is the molality.$m = \frac{w 	imes 1000}{M_{solute} 	imes W_{solvent(g)}}$,where $w$ is the mass of solute in grams.Substituting the values: $1.5 = 3 	imes \frac{w 	imes 1000}{176 	imes 75}$.$1.5 = \frac{3000 	imes w}{13200}$.$w = \frac{1.5 	imes 13200}{3000} = \frac{19800}{3000} = 6.6 \ g$.

Calculate the mass of ascorbic acid ($Vitamin \ C$,$C_6H_8O_6$) to be dissolved in $75 \ g$ of acetic acid to lower its melting point by $1.5^{\circ} C$. $\left[K_f = 3 \ K \ kg \ mol^{-1}\right]$ (in $g$)

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