Question

********MEDAL FOR CHEMISTRY HELP********

A 4.305-g sample of a nonelectrolyte is dissolved in 105 g of water. The solution freezes at -1.23C. Calculate the molar mass of the solute. Kf for water = 1.86C/m.
Select one:
a. 39.7 g/mol
b. 46.2 g/mol
c. 58.4g/mol
d. 62.0g/mol

Answer 1

u know the formula right

Answer 2

...

Answer 3

I had to get my kidney removed so I missed chem for a month, and more specifically the unit on moles and stoichiochemistry. Everything with formulas is now horrible.

Answer 4

don't worry i m here to help

Answer 5

Thank you so much!!!

Answer 6

\[DeltaT= Kb*m\]

Answer 7

m here stands for molality

Answer 8

u know the formula of molality

Answer 9

m= no. of moles of solute in (kg)/wt. of solvent.

Answer 10

Would the answer be D.) in this case?

Answer 11

hell yeah you are dammn right

Answer 12

Ahh! Thank you!!!

Answer 13

any time man