Question
The solubility of acetanilide in hot water (5.5 g/100 mL at 100C) is not very great, and its solubility in cold water (0.53 g/100 mL at 0C) is significant. What would be the maximum theoretical percent recovery from the first recrystallization of 0.5 g of acetanilide from 100 mL of water (assuming the solution is chilled to 0C)?
Answers
I might argue with the use of the words "not very great" and "significant."
How much H2O is needed to dissolve 0.50 g acetanilide? That's
100.0 mL x (0.5/5.5) = 9.09 mL.
How much will we lose on cooling that to zero C? That's
0.530 x (9.09/100) =0.048.
%recovery is (0.500-0.048)/0.500]*100 = ?
How much H2O is needed to dissolve 0.50 g acetanilide? That's
100.0 mL x (0.5/5.5) = 9.09 mL.
How much will we lose on cooling that to zero C? That's
0.530 x (9.09/100) =0.048.
%recovery is (0.500-0.048)/0.500]*100 = ?
no
yes
Related Questions
The solubility of Acetanilide in hot and cold water is:
Temperature.........Solubility in 100ml H20...
The solubility of acetanilide is 3.53 g in 100 mL of chloroform at 0 °C, and 29.1 g in 100 mL of chl...
The solubility of acetanilide is 18.5 g in 100 mL of methanol at 0 °C, and 59.2 g in 100 mL of metha...
the solubility of acetanilide in hot water is 5.5g/100mL at 100 and its solubility in cold water is...