Asked in Chemistry
How much would the boiling point of water increase if 4 mole of NaCI were added to 1 kg of water?
June 28, 2017 12:06PM
Change in boiling point = (i)(m)(K)i = van't Hoff factor which for NaCl is 2 (2 particles form upon ionization)
m = molality = moles/kg = 4 moles/1 kg = 4
K = boiling point constant for water = 0.512 degrees/m
∆T = (2)(4)(0.512) = 4.1 degrees
So, the boiling point of water would increase by 4.1 degrees C (4 degrees to 1 sig. fig.)