Question

1. The mole fraction of an aqueous solution of lithium sulfate is 0.297. Calculate the molarity (in mol/L) of the lithium sulfate solution, if the density of the solution is 1.39 g mL-1.

2. Determine the mole fraction of potassium permanganate in a 6.65 M aqueous solution of potassium permanganate. The density of the solution is 1.39 g mL-1.

Answer #1

Comment in case of any doubt.

Calculate the molality, molarity, and mole fraction of FeCl3 in
a 23.0 mass % aqueous solution (d = 1.230 g/mL). molality=____m
molarity=____M mole fraction=___

Calculate the molality, molarity, and mole fraction of FeCl3 in
a 29.5 mass % aqueous solution (d = 1.280g/mL)

what is the concentration in molarity of an aqueous solution
of potassium nitrate that has a mole fraction of KNO3 equal to
0.195? the density of the solution is 1.36 g/mL

An aqueous solution of ammonium sulfate is prepared by
dissolving 2.78 g of ammonium sulfate in 8.38×102 g of
water. The density of the solution is 1.73 g
mL-1.
a) Determine the mass percent of ammonium sulfate in the
solution.
b)Determine the mole fraction of ammonium sulfate in the
solution.

What is the concentration in mole fraction of solute of a 1.25M
aqueous solution of potassium nitrate, KNO3? The density of the
solution is 1.19 g/mL.

Calculate the molarity, molality, and mole fraction of a
solution created by mixing 500.0 mL of ethanol (C2H6O / d = 0.789
g/mL) with 4.267 g of benzene (C6H6 / d = 0.876 g/mL). Assume the
density of the solution is the same as ethanol.

the density of
a 6.27 M aqueous acetic acid solution is 1.045 g/ml. determine the
molarity of this solution and mole fraction of acetic
acid

1) The mole fraction of sodium phosphate, Na3PO4, in an aqueous
solution is 5.62×10-2 . The percent by mass of sodium phosphate in
the solution is %.
2)An aqueous solution is 36.0 % by mass
hydrochloric acid, HCl, and has a
density of 1.18 g/mL.
The mole fraction of hydrochloric acid in the
solution is
.

calculate the molarity of a 22.09 mass% aqueous solution of FeCl3.
The density of the solution is 1.280 g/mL. the mm of FeCl3 is
162.20 g/mol.

the mole fraction of sucrose in an aqueous solution is 0.100.
Calculate the molality of sucrose in the solution. the molar mass
of sucrose is 342.3 g/mol

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