8g of NaOH is dissolved in 18g of H2O. Mole fraction of NaOH in solution and molality (in mol kg−1) of the solutions respectively are
(a)
0.167, 11.11
(b)
0.2, 22.20
(c)
0.2, 11.11
(d)
0.167, 22.20
8g of NaOH is dissolved in 18g of H2O. Mole fraction of NaOH in solution and molality (in mol kg−1) of the solutions respectively are
(a)
0.167, 11.11
(b)
0.2, 22.20
(c)
0.2, 11.11
(d)
0.167, 22.20
Question ID - 52382 | SaraNextGen Top Answer
8g of NaOH is dissolved in 18g of H2O. Mole fraction of NaOH in solution and molality (in mol kg−1) of the solutions respectively are
(a)
0.167, 11.11
(b)
0.2, 22.20
(c)
0.2, 11.11
(d)
0.167, 22.20
|
8g of NaOH is dissolved in 18g of H2O. Mole fraction of NaOH in solution and molality (in mol kg−1) of the solutions respectively are |
|||
|
(a) |
0.167, 11.11 |
(b) |
0.2, 22.20 |
|
(c) |
0.2, 11.11 |
(d) |
0.167, 22.20 |
1 Answer
127 votes
Answer Key / Explanation : (a) -
8g NaOH, mol of NaOH =
0.2 mol
18g H2O, mol of H2O =
=1 mol
XNaOH =
= 0.167
Molality =
=11.11 m
127 votes
Answer Link
127