Asked by Eric GReenblatt

the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution?
Answered by bobpursley
Molarity=molessolute/literssolution.


Assume 1 liter.

1 kg of solvent.
moles solute=.258
Mass of soluttion=1kg+.258*molmassglucose
volume of solution=masssolutioin/density.

Answered by bobpursley
Please never post your real name.
Answered by Eric GReenblatt
can you explain a little more, im really lost
Answered by bobpursley
you know moles of solute per 1kg solvent, that was given. Then, you need to find the volume of the solution with 1kg solvent. You do that by adding the mass of the solute, then dividing the mass by the density. That gives you the volume of solution.
YOu can now calculate molarity.
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