Asked Dec 8, 2019

The freezing point of ethanol (C2H5OH) is -114.6 °C. The molal freezing point depression constant for ethanol is 2.00 °C/m. What is the freezing point (°C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, a nonelectrolyte) in 200.0 g of ethanol?


Expert Answer

Step 1

The freezing point depre...


Image Transcriptionclose

AT:=i×Kf×b AT; - the freezing-point depression, i- the van't Hoff factor, - the cryoscopic constant of the solvent, of b - the molality of the solution. mass of C;H,O3 molar mass ofC;H¿O; 50g Moles of glycerin=- =0.543mol 92.09 g/mol 0.543mol := 2.715mol/kg Molality of solution 0.200kg


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in




Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: a sample of liquid solvent has density of 0.814 g/ml. What is the mass of 92.3 ml of the liquid?

A: Density can be calculated using the equation given below:


Q: Problem Page     Aqueous hydrochloric acid  HCl  reacts with solid sodium hydroxide  NaOH  to p...

A: Chemical reaction between HCl and NaOH is given by,


Q: When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calcula...

A: Number of moles of HCl can be calculated using the given molarity and volume.


Q: How do I solve?

A: Click to see the answer


Q: Consider the reaction for the decompositon of carbon tetrachloride gas: CCl4(g) ⟶ C(s, graphite) + 2...

A: For the given reaction,△H = +95.7 kJ = 95700 J    (1 kJ = 1000 J)△S = +142.2 J/KTemperature, T = 25 ...


Q: why

A: The relationship between wavelength and energy is given as:


Q: Consider the followin thermochemical equation: 2NH3 (g) + 6H2O (g) -> 1/2 N2 (g) + 9H2 + 5/2 O2 (...

A: Reversing the equation-2:2NH3 (g)  -> N2 (g) + 3H2 (g) ΔH° =+22.10 kcalReversing the equation-3 a...


Q: Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodiu...

A: Given,Mass of H2SO4 = 5.88 gMass of NaOH = 6.7 gMoles of H2SO4 and NaOH can be calculated as:


Q: Solve the following using dimensional analysis convert 275 grams into oz (2.21lbs =1 kg)

A: Given:Mass = 275 g