What is the total vapor pressure in atm of a solution created by
combining 2.32 moles...
What is the total vapor pressure in atm of a solution created by
combining 2.32 moles of toluene and 6.56 moles of benzene at 350K?
At 350K Pvap, toluene = 0.33 atm and Pvap,
benzene = 0.95 atm
A)What is the total vapor pressure in atm of a solution created
by combining 4.43 moles of toluene and 5.38 moles of benzene at
350K? At 350K Pvap, toluene = 0.33 atm and Pvap,
benzene = 0.95 atm
B)What is the molar mass of a non-ionizing, non-volatile solid
that when 10.4 g is dissolved in water to make 100.0 mL of solution
creats a solution with an osmotic pressure of 6.07 atm at
25.0oC
C)What is the freezing point of...
Please explain, Im so confused!
A. What is the vapor pressure in atm of a solution at 25 oC
produced by dissolving 138.4 g of dextrose (C6H12O6) in 376.4 g of
water? Vapor pressure of water at 25 oC = 0.0313 atm
B. An 18.3 g of an unknown non-ionizing solute is added to 88.8
g of water. If the boiling point of the solution is 101.4, what is
the molar mass of the solute?
C. How many moles of...
A) What is the pH of a solution created by combining 1.28 mole
of HOBr and 0.52 mole NaOH in a 1.00L solution? Ka HOBr
= 2.5 x 10-9
B) What is the pH of a buffer
made by combining 0.62 moles HOBr with 0.88 moles NaOBr in a
100.00mL solution? Ka HOBr = 2.5 x 10-9
1.)
Gas
Number of moles
N2
3.10
O2
0.76
CO2
0.12
If the total pressure is 1.07 atm, what is the partial pressure
of Oxygen? (Your answer will be in atmospheres, but do NOT include
units - Blackboard won't allow them. Use two decimal places, and
simply give the number portion.)
2.) A reaction is carried out that produces hydrogen gas. The
gas is collected in an inverted beaker over water at 25
oC. The vapor pressure of water at...
1. a.) What is the pH of a solution created by combining 1.27
mole of HOBr and 0.43 mole NaOH in a 1.00L solution? Ka HOBr = 2.5
x 10-9
b.)What is the pH of a buffer made by combining 0.98 moles HOBr
with 0.67 moles NaOBr in a 100.00mL solution? Ka HOBr = 2.5 x
10-9
1.) What is the pH of a solution created by combining 1.34 mole
of HOBr and 0.47 mole NaOH in a 1.00L solution? Ka HOBr
= 2.5 x 10-9
2.) What is the pH after 0.24 moles of NaOH is added to a
buffer containing 1.00 moles of NH3 and 1.00 moles
NH4Cl ? Kb NH3 = 1.8 x
10-5
3.) What is the pH of a buffer made by combining 0.69 moles
HOBr with 0.65 moles NaOBr in a...
A liquid mixture had 30 moles of A and 70 moles of B. The vapor
pressure of pure A is 790 torr and pure B is 630 torr. What is the
pressure at which the mixture boils?
4. A solution of benzene and toluene at 25C and 760mmHg has a
total vapor pressure (Ptotal) of 71.08 torr (mmHg). If
the partial pressures of benzene (Pbenzene) and toluene
(Ptoulene) are 60.86 torr and 122 torr respectively,
what are the percentages of a. benzene; and b. toluene, in
the corresponding vapor above the liquid. Please show all the
calculations.
(b) If the vapor pressure of pure benzene is always higher than
the vapor pressure of pure toluene when they...