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jenyasd209 [6]
4 years ago
7

What is the molarity of a 10.2 % by mass glucose (c6h12o6) solution? (the density of the solution is 1.03 g/ml .)?

Chemistry
1 answer:
Sedbober [7]4 years ago
4 0
<span>Molality = moles of solute divided by kilograms of solvent In this case let’s assume a 100g sample solution: Since its 10.5% by mass, there is 10.5g glucose. The rest of the 89.5g is water. Divide the 10.5g glucose by its molar mass (180g) to get the # of moles, which is 0.058moles So now we have 0.058mole glucose divided by 0.089kilograms of water: the answer is 0.65molal</span>
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