Two problems here. For each,
dT = i*Kf*m
Plug in and solve for m for each.
A sample of seawater taken from the Atlantic Ocean freezes at –2.14 °C and a sample from the Arctic Ocean freezes at –1.96 °C. Assume i = 2.
What is the molality of the Atlantic Ocean sample?
What is the molality of the Arctic Ocean sample?
3 answers
How do you solve for Kf in this problem?
Kf is something you look up. It's value for water is 1.86 C/m.