Question

Vodka is 25% by mass ethanol (C_{2}H_{5}OH) and
has a density of 0.75 g/mL. Calculate the mole fraction of each
species (water and ethanol) in solution, and the molality of the
ethanol in vodka.

Answer #1

1.
Vodka is advertised to be 80 proof, which is 40% by volume of
ethanol, C2H5OH. Assuming the density of the solution is 1.0 g/mL
and the density of ethanol is 0.789 g/mL. If the solution is at
25oC, what is the vapor pressure of water over the solution?
2. Calculate the molarity and molality of a solution of 50
grams of ethanol, C2H5OH (density = 0.789 g/mL) which is dissolved
in 200 mL of water (density = 1.00 g/mL).

assume you dissolve 45.0g camphor (C10H16O) in 425mL of ethanol
(C2H5OH, has a density of 0.785g/mL) calculate the molality,
molarity, mole fraction, and mass % of camphor in this
solution.

Calculate the molality of a 6.55 M ethanol
(C2H5OH) solution whose density is 0.9245
g/mL.

Vodka is advertised to be 80 proof, which is 40% by volume of
ethanol, C2H5OH. Assuming the density of the solution is 1.0 g/mL
and the density of ethanol is 0.789 g/mL. If the solution is at
25oC, what is the vapor pressure of water over the solution?
Please show all work with the correct answer. Thank
you!!!!!!!

1. Calculate the molality of a solution of 50mL of ethanol,
C2H5OH (density .789g.mL) which is dissolved in .25L of water
(density=1.00g/mL).
2. A solution is prepared by diluting 225mL of .1885 M aluminum
sulfate with water to a final volume of 1.450L. Calculate the
molarities of the aluminum sulfate, aluminum ions, and sulfate ions
in the diluted solutions.

Blood alcohol content is usually measured as the mass of ethanol
(C2H5OH, FM = 46.068 g/mole) per volume of blood. More
specifically, the results are reported in g/dL. If the density of
blood is 1.06 g/mL what is the molality and molarity of a BAC that
is 0.15 g/dL?

4.Calculate the molarity of the ethanol in the undiluted vodka
sample. As in the lab procedure, the original (undiluted) vodka was
diluted 1/40
5.Calculate the mass of ethanol (CH33CH22OH) in a litre of
vodka.
6.Given that the density of ethanol (CH33CH22OH) is 0.789
g⋅mL−1−1, convert the mass of ethanol into a volume of ethanol in a
litre of vodka.
7.When 2 miscible liquids are mixed, very seldom does the final
volume equal the combined volumes of the individual liquids. The...

An aqueous solution is 28.0 % by mass ethanol, CH3CH2OH, and has
a density of 0.957 g/mL.
The mole fraction of ethanol in the solution is____ .

Calculate the mole fractions in a solution that is made of 12.5
g of ethanol (C2H5OH) and 47.5 g of
water.
ethanol = ______________
water = ______________

A solution is 40% ethanol (density = 0.789 g/mL) by volume and
60% water (density = 1.00 g/mL). If Tom Titan has 750.0 mL of the
solution, what is the mass of ethanol in solution?

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