Calculate the molality molarity and mole fraction of FeCl3 i
Calculate the molality, molarity, and mole fraction of FeCl_3 in a 24.5 mass % aqueous solution (d = 1.280 g/mL).
Solution
The probability distribution is
Now the E(X) is = 0*0.6725+1*0.1637+2*0.07923+3*0.00176+4*0.08275 = 0.65844
Sp answer is option A
| X | 0 | 1 | 2 | 3 | 4 |
| Probabilty | 0.6725 | 0.1637 | 0.07923 | 0.00176 | 0.08275 |
