Question

4 g of NaOH is dissolved in one litre of solution find the mole fraction of solute i,e NaO H

Pls answer this question i have a test

Correct answer will be marked brainliest

Answer 1

find no. of moles of naoh which is equal to given mass/molar mass
-> 4/40=0.1 mole

mole fraction=no. of moles of naoh /total no. of moles 0.1/(0.1+0.9) which is equal to 0.1 so answer is 0.1
mole fraction of a +mole fraction of b = 1

so answer is 0.1
I hope it helps

Answer 2

your answer is.
.002567