ZuoTi.Pro
Question

A solution was made by adding 800 g of ethanol, C2H5OH, to 8 x 103 g...

A solution was made by adding 800 g of ethanol, C2H5OH, to 8 x 103 g of water. How much would this lower the freezing point?

Kf of H2O is 1.86 degrees Celsius/m

The answer is supposed to be 4.1 degrees Celsius, but I got 3.98287 degrees Celsius. What did I do wrong?

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Request Professional Answer

Request Answer!

We need at least 10 more requests to produce the answer.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)

All students who have requested the answer will be notified once they are available.
Know the answer?
Add Answer to:
A solution was made by adding 800 g of ethanol, C2H5OH, to 8 x 103 g...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Similar Homework Help Questions

  • A solution is prepared by dissolving 2.00 g of glycerin (C3H8O3) in 201 g of ethanol...

    A solution is prepared by dissolving 2.00 g of glycerin (C3H8O3) in 201 g of ethanol (C2H5OH). The freezing point of the solution is _______ degrees celsius. The freezing point of pure ethanol is -114.6 degrees celsius at 1atm. The molal-freezing point depression constant (Kf) for ethanol is 1.99 degrees celsius/m. The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.

  • An aqueous salt solution is formed by adding 61.65 g Iron (III) nitrate (solute) to water...

    An aqueous salt solution is formed by adding 61.65 g Iron (III) nitrate (solute) to water (solvent). What mass (in g) of water is used if the freezing point of the solution is -11.8 oC. Kf H2O = 1.86 oC/m

  • 8. A solution is prepared by dissolving 0.434 moles of ethanol, C2H60, in 150. grams of...

    8. A solution is prepared by dissolving 0.434 moles of ethanol, C2H60, in 150. grams of water. Calculate the molality of the solution, freezing point of the solution, and boiling point of the solution. (Kf of H2O 1.86°C/m; fp of H20 = 0.00°C; Kb of H20 = 0.512°C/m; BP of H20 100.00°C)

  • A 2.50 g sample of naphthalene, C10H8, was dissolved in 100 g of benzene. What is...

    A 2.50 g sample of naphthalene, C10H8, was dissolved in 100 g of benzene. What is the freezing point of the solution? The freezing point of pure benzene is 5.45 degrees Celsius; Kf=5.07 degrees Celsius/m. The molar mass of C10H8 is 128.17 g/mol The answer is supposed to be 4.46 degrees Celsius. How did they get there?

  • A solution is made by dissolving 0.749 mol of nonelectrolyte solute in 861 g of benzene....

    A solution is made by dissolving 0.749 mol of nonelectrolyte solute in 861 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here. Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00 benzene C6H6 5.12 5.49 2.53 80.1 cyclohexane C6H12 20.8 6.59 2.92 80.7 ethanol C2H6O 1.99 –117.3 1.22 78.4 carbon tetrachloride   CCl4 29.8 –22.9 5.03 76.8...

  • A solution is made by dissolving 0.585 mol of nonelectrolyte solute in 877 g of benzene....

    A solution is made by dissolving 0.585 mol of nonelectrolyte solute in 877 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants can be found in the table of colligative constants. Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00 benzene C6H6 5.12 5.49 2.53 80.1 cyclohexane C6H12 20.8...

  • help please asap Question 32 (1 point) What is the pH of a 0.056 M aqueous...

    help please asap Question 32 (1 point) What is the pH of a 0.056 M aqueous acetic acid solution? kg = 1.8 x 10-5. Your Answer: Answer Question 31 (1 point) A solution was made by adding 72 g of ethanol, C2H5OH, to 629 g of water. How much would this lower the freezing point? The freezing point depression constant, Kf, of water is 1.86 °C•m-1 and the molar mass of ethanol is 46.08 g.mol-1. (Don't use the degree sign...

  • A 15.3 g sample of a compound known to contain 3 ion species is dissolved in...

    A 15.3 g sample of a compound known to contain 3 ion species is dissolved in 110 g of water. The boiling point of the solution is 103.0 degrees Celsius. What is the molar mass of the compound? Additional Info: Physical Properties of water Freezing point: 0.00 degrees Celsius Boiling point: 100 degrees Celsius Kf: 1.86 Degrees Celsius/m Kb: 0.512 degrees Celsius/m

  • Question 1 5 pts A solution is prepared by dissolving 35.35 g ethanol (C2H5OH; Molar mass...

    Question 1 5 pts A solution is prepared by dissolving 35.35 g ethanol (C2H5OH; Molar mass = 46.08 g/mol) in 42.2 g water. What is the molality (mol/kg) of C2H5OH in the solution? 4361 m 4.36 m 0.767 m 18.2 m 0.0182 m Question 2 5 pts Which observation correctly reflects colligative property? A KOH solution has a high vapor pressure than pure water Adding NaCl to ice will increase its melting point. A 0.5 m NaOH solution boils at...

  • please help as soon as possible ergent Question 31 (1 point) A solution was made by...

    please help as soon as possible ergent Question 31 (1 point) A solution was made by adding 87 g of ethanol, C2HOH, to 742 of water. How much would this lower the freezing point? The freezing point depression constant. Kt. of water is 1.86 °C-m-1 and the molar mass of ethanol is 46.08 g-mol-1. (Don't use the degree sign in your answer.) Your Answer: Answer units Question 32 (1 point) What is the pH of a 0.023 M aqueous acetic...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT