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just olya [345]
1 year ago
5

what is the number of kilograms of solvent in a 0.70 molal solution containing 5.0 grams of solute? (molar mass of solute

Chemistry
1 answer:
pshichka [43]1 year ago
7 0

The number of kilograms of solvent is 0.238 kg.

Moles of solute = given mass/ molar mass

                        = 5.0 g/ 30g/mol

                       = 0.167 mol

Molality = Moles of solute/ weight of solvent (in kg)

0.70 m = 0.167 mol/ weight of solvent (in kg)

Weight of solvent (in kg) = 0.167/0.70

Weight of solvent (in kg) = 0.238 kg

Hence, the number of kilograms of solvent is 0.238 kg.

Molality is a degree of the number of moles of solute in a solution corresponding to 1 kg or a thousand g of solvent. This contrasts with the definition of molarity that is primarily based on a distinctive quantity of answer. A commonly used unit for molality in chemistry is mol/kg.

Find out how molarity and molality fluctuate! The molality of a solution is identical to the moles of solute divided by way of the mass of solvent in kilograms, whilst the molarity of an answer is identical to the moles of solute divided by the volume of solution in liters.

Learn more about Molality here:-

brainly.com/question/9149034

#SPJ4

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