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12 Dec 2019

Some physical properties of water are shown below.

freezing point 0.00°C

boiling point 100.00°C

Kf 1.86°C/m

Kb 0.512°C/m

A 34.3 g sample of a nonelectrolyte was dissolved is 650. g of water. The solution's freezing point was -2.75°C. What is the molar mass of the compound?

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Jamar Ferry
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13 Dec 2019

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Related questions

Calculate the freezing point and boiling point of each of the following solutions: the freezing point of the solution: 174 g of sucrose, C12H22O11, a nonelectrolyte, dissolved in 1.35 kg of water (Kf=1.86∘C) Express your answer using one decimal place.

The boiling point of an aqueous solution of methanol CH3OH, is 101.6°C. What is the freezing point of this solution? Kf for H2O = 1.86°C/m ; Kb for H2O = 0.512°C/m

A. +1.6°C B. –5.8°C C. –1.6°C

D. +5.8°C E. –4.2°C F. +4.2°C

Please show all steps!!

1) The freezing point of water is 0.00°C at 1 atmosphere.
If 11.04 grams of aluminum chloride, (133.3 g/mol), are dissolved in 196.4 grams of water.
The molality of the solution is m.
The freezing point of the solution is °C.

2) The boiling point of water is 100.0°C at 1 atmosphere. (Kb(water) = 0.512°C/m)
How many grams of barium bromide (297.1 g/mol), must be dissolved in 249.0 grams of water to raise the boiling point by 0.450°C ? g barium bromide.

3) The boiling point of water/H2O is 100.00 °C at 1 atmosphere.
If 14.23 grams of aluminum acetate, (204.1 g/mol), are dissolved in 293.7 grams of water ...
The molality of the solution is m.
The boiling point of the solution is °C.

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