The vapor pressure of water at 45oC is 71.88 mmHg.
What is the vapor pressure of...
The vapor pressure of water at 45oC is 71.88 mmHg.
What is the vapor pressure of a sugar
(C12H22O11) solution made by
dissolving 54.18 g of sugar in 85.56 g of water?
KEY PART that is TRICKY for me: (The vapor pressure of water is
23.78 mmHg at 25∘C)
A common way to make hydrogen gas in the laboratory is to place
a metal such as zinc in hydrochloric acid (see the figure). The
hydrochloric acid reacts with the metal to produce hydrogen gas,
which is then collected over water. Suppose a student carries out
this reaction and collects a total of 154.0 mL of gas at a pressure
of 742 mmHg...
The vapor pressure of ethanol is 1.00 × 102 mmHg at 34.90°C.
What is its vapor pressure at 50.66°C? (ΔHvap for ethanol is 39.3
kJ/mol.)
Please Help! Thanks!
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at
50 ∘C. The vapor pressure of pure water at this temperature is 92.6
mmHg. Part A What is the concentration of CaCl2 in mass
percent?
An aqueous CaCl2 solution has a vapor pressure of 83.9 mmHg at
50 ∘C. The vapor pressure of pure water at this temperature is 92.6
mmHg. What is the concentration of CaCl2 in mass percent?
At
25 C, the vapor pressure of pure water is 23.8 torr. What is the
vapor pressure of an aqueous solution that is 8.00% NaCl by mass?
Assume the NaCl is 100% dissociated.
The vapor pressure of pure water at 37C is 47.1 torr. What would
be the vapor pressure of an aqeous solution at 37C containing 40g
of Glucose (C6H12O6) dissolved in 200g of water?
The vapor pressure of ethonal (C2H5OH) is 672torr at
75°C. The vapor pressure of water is 289torr at the same
temperature.
Ethonal and water forms solution that behave like ideal solution.
Calc vapor pressure of ethonal and water above the solution at
75°C.
1) At 24 C the vapor pressure of water is 3 kPa. The vapor
pressure of water over a sample is 2 kPa, what is the water
activity of the sample?
2) The water activity above a saturated NaCl solution is 0.75.
If a sample is enclosed in a jar with the NaCl solution and
equilibrium is achieved, what is the water activity of the sample?
NaCl and the sample are in separate containers within the jar.
At 35ºC, the vapor pressure of pure water is 42.2 torr.
Calculate the vapor pressure of water at this temperature in a
solution that has a concentration of 6.5 M of NaCl. The density of
the solution is 1.09 g/mL