An isotonic solution contains 0.95% NaCl by mass per volume. Calculate the percent mass per volume for isotonic solutions containing each of the following solutes at 30 degrees Celsius. Assume a van't Hoff factor of 1.9 for all ionic solutes.
a.KCl______% by mass per volume
b.NaBr______% by mass per volume
c.Glucose(C6H12O6)______% by mass per volume