Question

In: Chemistry

Part A If 0.100 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what...

Part A

If 0.100 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure PH2O of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 ∘C .

Part B

A solution is composed of 1.00 mol cyclohexane (P∘cy=97.6 torr) and 2.10 mol acetone (P∘ac=229.5 torr). What is the total vapor pressure Ptotal above this solution?

Part C

What is the freezing point of radiator fluid that is 50% antifreeze by mass?
Kf for water is 1.86 ∘C/m.

Part D

What is the boiling point of radiator fluid that is 50% antifreeze by mass?
Kb for water is 0.512 ∘C/m.

Expert Solution

Part A

Part B

Part C

Ethylene glycol is used as antifreeze and has molar mass of 62 g/mol.

Assume 2 kg of solution. The mass of ethylene glycol

Number of moles of ethylene glycol

The mass of water

The molality m

The depression in the freezing point

The freezing point of pure water is 0 deg C.

The freezing point of radiator fluid that is 50% antifreeze by mass is

Part D

Ethylene glycol is used as antifreeze and has molar mass of 62 g/mol.

Assume 2 kg of solution. The mass of ethylene glycol

Number of moles of ethylene glycol

The mass of water

The molality m

The elevation in the boiling point

The boiling point of pure water is 373.15 deg C.

The boiling point of radiator fluid that is 50% antifreeze by mass is

queen_honey_blossom answered 2 years ago

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