An isotonic solution contains 0.86% by mass per volume. Calculate the percent mass per volume for an isotonic solution of KCl at 30 degrees C. Assume a van't Hoff factor of 1.9.

Answer 1

Just figured this out for my Chemistry class.

.86 / (23 + 34.45) = X / (39 + 34.45)

Solve for X

( .86 / (23 + 34.45) ) * (39 + 34.45)

1.099 = X

X =

Answer 2

mark, what does the 23 represent?

Answer 3

23 stands for the GFM of sodium