Solutions Question 10
Question 10 - 2024 (30 Jan Shift 2)
If a substance ’ $A$ ’ dissolves in solution of a mixture of ’ $B$ ’ and ’ $C$ ’ with their respective number of moles as $n _A, n _B$ and $n _C$, mole fraction of $C$ in the solution is:
(1) $\frac{n _C}{n _A \times n _B \times n _C}$
(2) $\frac{n _C}{n _A+n _B+n _C}$
(3) $\frac{n _C-n _C}{n _A-n _B-n _C}$
(4) $\frac{n _B}{n _A+n _B}$
Show Answer
Answer (2)
Solution
Mole fraction of $C=\frac{n _C}{n _A+n _B+n _C}$
