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$3.42 \times 10^{-2} \mathrm{~kg}$ Sugar (molar mass 342 ) is dissolved in water to produce $234.2 \mathrm{~g}$ of sugar syrup, what is the molality of sugar syrup?
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The correct answer is:
$0 \cdot 50 \mathrm{~mol} \mathrm{~kg}^{-1}$
Weight of water in sugar syrup $=234.2-34.2=200 \mathrm{gm}$
Molecular weight of sugar $=342$
Molal concentration $=\frac{34.2}{342} \times \frac{1000}{200}$
Molal concentrtion $=0.5$
Molecular weight of sugar $=342$
Molal concentration $=\frac{34.2}{342} \times \frac{1000}{200}$
Molal concentrtion $=0.5$
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