A certain substance X melts at a temperature of -9.9 °C. But if a 250. g...

Question

Question

science chemistry

Answer 1

Answer #1

Detailed solution given below

solution: freezing point depression of metal x ATf = (freezing point of pure solvent)-(freezing point = -9.98-(-12°c) of solu

Answer 2

Similar Homework Help Questions

A certain substance X has a normal freezing point of 1.2°C and a molal freezing point...

A certain substance X has a normal freezing point of 1.2°C and a molal freezing point depression constant =Kf1.51·°C·kgmol−1 . A solution is prepared by dissolving some urea NH22CO in 950.g of X . This solution freezes at −1.8°C . Calculate the mass of urea that was dissolved. Round your answer to 2 significant digits
A certain substance X condenses at a temperature of 121.3 °C. But if a 200. g...

A certain substance X condenses at a temperature of 121.3 °C. But if a 200. g sample of X is prepared with 20. g of urea ((NH2), CO) dissolved in it, the sample is found to have a condensation point of 124.3 °C instead. Calculate the molal boiling point elevation constar of X Round your answer to 2 significant digits. •c-mol. kg x 6 ?
A certain substance X has a normal freezing point of 6.8 C and a molal freezing...

A certain substance X has a normal freezing point of 6.8 C and a molal freezing point depression constant Kf=7.51C kg x mol-1 . A solution is prepared by dissolving some urea ((NH2)2CO) in 600 of X. This solution freezes at 5.0 C . Calculate the mass of urea that was dissolved. Be sure your answer has the correct number of significant digits.

A certain substance X has a normal freezing point of 4.4°C and a molal freezing point...

A certain substance X has a normal freezing point of 4.4°C and a molal freezing point depression constant Kf=2.38·°C·kgmol−1. Calculate the freezing point of a solution made of 76.11g of urea ( (NH2)2CO) dissolved in 750.g of X .Be sure your answer has the correct number of significant digits.
8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15....

8. The normal freezing point of a certain liquid X is 0.7 °C, but when 15. g of urea, (NH2)2CO, are dissolved in 250. g of X, it is found that the solution freezes at -5.8 °C instead. Use this information to calculate the molal freezing point depression constant Kr of X. Be sure your answer has the correct number of significant digits.
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84...

The normal freezing point of a certain liquid X is 4.1 C , but when 27.84 g of urea ((NH2)2CO) are dissolved in 750 g of X , it is found that the solution freezes at -0.7 C instead. Use this information to calculate the molal freezing point depression constant Kf of X . Be sure your answer has the correct number of significant digits

The molal freezing point depression constant kf= 5.47°C·kgmol−1 for a certain substance X. When 6.678g of...

The molal freezing point depression constant kf= 5.47°C·kgmol−1 for a certain substance X. When 6.678g of urea NH22CO are dissolved in 500.g of X, the solution freezes at −3.3°C. Calculate the freezing point of pure X
The normal boiling point of a certain liquid X is 145.9 °C, but when 54.38 g...

The normal boiling point of a certain liquid X is 145.9 °C, but when 54.38 g of urea ((NH)CO are dissolved in 800 R of X, it is found that the solutio at 147.4 °C instead. Use this information to calculate the molal boiling point elevation constant KofX. Be sure your answer has the correct number of significant digits. I ac-mol kg x 5 ? Save For Later Sut Check
A certain substance X has a normal boiling point of 116.6 °C and a molal boiling...

A certain substance X has a normal boiling point of 116.6 °C and a molal boiling point elevation constant K =2.07 C-kg-mol - Calculate the boiling point of a solution made of 24.8 g of urea *((NH2),Co) dissolved in 350. 5 of X Be sure your answer has the correct number of significant digits. 19 5 ? Save For Later Submit Assignment Check $ 5 6.

LYLLISINLASH Homework 2 chp 13 Question 25 of 28 (1 point) Question Attempt: 1 of Unlimited...

LYLLISINLASH Homework 2 chp 13 Question 25 of 28 (1 point) Question Attempt: 1 of Unlimited Zach ) 15 15 x 16 17 21 22 23 24 25 26 A solution is prepared A certain substance I has a normal freezing point of -6,6 °C and a molal freezing point depression constant k, = 2.48 kg.mol by dissolving some urea ((NH).CO) in 200. g of X. This solution freezes at 8.2°C Calculate the mass of urea that was dissolved. Be...