Calculate the molality of the aquaeous sol'n? a. 1.22 molarity of C12 H22 O11 sol'n whose density is 1.12g/m?

pls help me, i suck at Chem... tnx... really appreciate it...

Answer:
1.22 molarity = 1.22 x 342.3 grams per liter (417.6 g)
1 L (1000 mL) weighs 1000 x 1.12 or 1120 grams
Total weight = 1120 g = 417.6 g C12H22O11 + 702.4 g H2O
You have 1.22 moles of C12H22O11 in 702.4 g water
1.22 moles x (1000 gm / 702.4 g) = 1.74 molality

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