Question

A student performing this experiment finds that dissolving 9.177 g of an unknown nonelectrolyte solute in...

A student performing this experiment finds that dissolving 9.177 g of an unknown nonelectrolyte solute in 49.617 g of water forms a solution which freezes at -1.36 oC. Calculate the molar mass of the unknown solute in g/mol. Kffor water is 1.86 oC/molal; assume the freezing point of pure water is 0.00oC.

Enter your answer to the ones place.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A solution was prepared by dissolving 1.000 g of an unknown non-electrolyte in 50.00 g of...
A solution was prepared by dissolving 1.000 g of an unknown non-electrolyte in 50.00 g of CCl4. The freezing point of the solution was found to be -28.4°C. What is the molar mass of this unknown solute? (The freezing point of pure CCl4 is -22.3°C, and Kf for CCl4 is 29.8°C.kg/mol.)
A solution is made by dissolving 0.579 mol of nonelectrolyte solute in 891 g of benzene....
A solution is made by dissolving 0.579 mol of nonelectrolyte solute in 891 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution.
A solution is made by dissolving 0.726 mol of nonelectrolyte solute in 857 g of benzene....
A solution is made by dissolving 0.726 mol of nonelectrolyte solute in 857 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here.
A solution is made by dissolving 0.647 mol of nonelectrolyte solute in 771 g of benzene....
A solution is made by dissolving 0.647 mol of nonelectrolyte solute in 771 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here.
A solution is made by dissolving 0.656 mol of nonelectrolyte solute in 825 g of benzene....
A solution is made by dissolving 0.656 mol of nonelectrolyte solute in 825 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here.
A solution is made by dissolving 0.539 mol of nonelectrolyte solute in 813 g of benzene....
A solution is made by dissolving 0.539 mol of nonelectrolyte solute in 813 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here.
A solution is made by dissolving 0.595 mol of nonelectrolyte solute in 835 g of benzene....
A solution is made by dissolving 0.595 mol of nonelectrolyte solute in 835 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here. Kf= 5.12 Kb= 2.53
A solution is made by dissolving 0.633 mol0.633 mol of nonelectrolyte solute in 857 g857 g...
A solution is made by dissolving 0.633 mol0.633 mol of nonelectrolyte solute in 857 g857 g of benzene. Calculate the freezing point, Tf,Tf, and boiling point, Tb,Tb, of the solution. Constants can be found in the table of colligative constants.
A 1.0945 g sample of an unknown nonelectrolyte is dissolved in 10.0054 g of benzophenone and...
A 1.0945 g sample of an unknown nonelectrolyte is dissolved in 10.0054 g of benzophenone and produces a solution that freezes at 36.8 oC. If the pure benzophenone melted at 48.1 oC, what is the molecular weight of the unknown compoumd? The Kf for benzophenone is 9.8 oC/m.
A solution of 12.00 grams of an unknown nonelectrolyte compound is dissolved in 200.0 grams of...
A solution of 12.00 grams of an unknown nonelectrolyte compound is dissolved in 200.0 grams of benzene. The resultant solution freezes at 3.45oC. What is the molar mass of the unknown compound? [The freezing point of pure benzene is 5.45oC ; the Kf for benzene is 5.07oC m-1]. (Hint: this is a two-step challenge, involving first finding the number of moles of solute in the solution from the freezing point data and then its molar mass in units of grams/mole)...