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Molality

#### Q. Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d=0.792 g/mL) and 387 mL of CH3CH2CH2OH (d = 0.811 g/mL). A.4.98 m . D.0.812 m . B.2.01 m . E.0.630 m . C.1.57 m

Solved • Feb 2, 2020

Molality

#### Q. A 2.300x10^-2 M solution of glycerol (C3H8O3) in water is at 20.0°C. The sample was created by dissolving a sample of C3H8O3 in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.0 mL. The density of water at 20.0°C is .09982 g/mL. Calculate the molality of the glycerol solution. Express your answer to four significant figures and include the appropriate units.

Solved • Jan 31, 2020

Molality

#### Q. A solution was prepared by dissolving 35.0 g of KCl in 225 g of water. Calculate the molality of KCl in the solution. Express your answer with the appropriate units.

Solved • Jan 31, 2020

Molality

#### Q. In the laboratory you are asked to make a 0.606 m zinc nitrate solution using 355 grams of water. How many grams of zinc nitrate should you add?

Solved • Jan 28, 2020

Molality

#### Q. An aqueous solution of sodium sulfide has a concentration of 0.407 molal. The percent by mass of sodium sulfide in the solution is ____ %.

Solved • Jan 28, 2020

Molality

#### Q. A sulfuric acid solution containing 571.2 g of H2SO4 per liter of aqueous solution has a density of 1.329 g/cm3. Calculate the molality of H2SO4 in this solution. Express your answer using four significant figures.

Solved • Jan 26, 2020

Molality

#### Q. A sulfuric acid solution containing 571.2 g of H2SO4 per liter of aqueous solution has a density of 1.329 g/cm3. Calculate the molality of H2SO4 in this solution. Express your answer using four significant figures.

Solved • Jan 26, 2020