Question

An aqueous solution of hydrochloric acid contains 36% HCl by mass. Calculate the mole fraction of HCl in the solution.

Answer #1

An aqueous solution contains 25% HCl by mass. How do I calculate
the molality and mole fraction of the solution.

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
.

An aqueous solution contains 4.5 % NaCl by mass. calculate
molality. calculate mole fraction

4. Calculate the mole fraction of phosphoric acid (H3PO4) in a
25.4% (by mass) aqueous solution. (Assume 500 mL of solution.)
Please show work

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)

A 14.1 g sample of an aqueous solution of hydrochloric acid
contains an unknown amount of the acid. If 25.8 mL of 6.55×10-2 M
barium hydroxide are required to neutralize the hydrochloric acid,
what is the percent by mass of hydrochloric acid in the
mixture?
A 13.2 g sample of an aqueous solution of perchloric acid
contains an unknown amount of the acid. If 18.9 mL of 0.619 M
barium hydroxide are required to neutralize the perchloric acid,
what is...

A 7.36 g sample of an aqueous solution of hydrochloric acid
contains an unknown amount of the acid.
If 23.3 mL of 0.104 M potassium hydroxide are required to
neutralize the hydrochloric acid, what is the percent by mass of
hydrochloric acid in the mixture?
______% by mass

A 7.36 g sample of an aqueous solution of hydrochloric acid
contains an unknown amount of the acid.
If 23.3 mL of 0.104 M potassium hydroxide are required to
neutralize the hydrochloric acid, what is the percent by mass of
hydrochloric acid in the mixture?
_______% by mass

A 12.1 g sample of an aqueous solution of
hydrochloric acid contains an unknown amount of
the acid.
If 14.3 mL of 0.856 M
barium hydroxide are required to neutralize the
hydrochloric acid, what is the percent by mass of
hydrochloric acid in the mixture?

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