Chemistry Homework Help

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Molality

Q. Determine the molality of a solution prepared by dissolving 3.84 g of sodium chloride in 76.1 g of water. Give your answer to 2 decimal places.

Solved • Jan 24, 2020

Molality

Q. A 28.4 mass % aqueous solution of iron(III) chloride has a density of 1.280 g/mL. Calculate the molality of the solution.  Give your answer to 2 decimal places.

Solved • Jan 22, 2020

Molality

Q. Determine the mass in grams of glucose that must be added to 11 g of water to make a 0.63 m solution.  Give your answer to 2 decimal places.

Solved • Jan 22, 2020

Molality

Q. How many moles of solute particles are present in 3.4 mL of 0.172 M K2SO4? When you have your answer, take the LOG (base 10) of your answer and enter it with 2 decimal places.

Solved • Jan 22, 2020

Molality

Q. A 0.71 mass % aqueous solution of sodium chloride has a density of 1.05 g/mL. Calculate the molality of the solution. Give your answer to 2 decimal places.

Solved • Jan 22, 2020

Molality

Q. Determine the mass in grams of sucrose that must be added to 47 g of water to make a 2.48 m solution. Enter your answer to 2 decimal places.

Solved • Jan 22, 2020

Molality

Q. Calculate the molality of an aqueous solution that is 13.5% by mass calcium chloride. You might need to know that the density is 1.24 g/mL.

Solved • Jan 22, 2020