solubility solvent hot ambient temp. Very Solntil Soluti acetone Water in ethano
ID: 534511 • Letter: S
Question
solubility solvent hot ambient temp. Very Solntil Soluti acetone Water in ethanol insdukil petroleum ether water Choice of recrystallization solvent amount of acetanilide used, grams amount of pure acetanilide obtained, grams -2 2 2133 acetanilide recovery, melting range of impure acetanilide, oC melting range of purified acetanilide, oC Post-Laboratory Questions: On a separate sheet (preferably typed) complete the post- laboratory questions in your laboratory manual. Show all calculations! Additional Post-Laboratory Questions: 1. What technique is being investigated in this experiment? 2. When will this technique be useful? 3. What evidence do you have that the purified acetanilide is pure then the crude Consider appearance, melting temperature and melting range. 4. Why is it expected that the recovery for this experiment would be less than 100%?Explanation / Answer
1.
a.Answer
if the solubility is 6.80g/100ml at 100c, set up the ratio with only 1g
6.80g/100ml = 1g/xml
x ml = 100/6.80
x = 14.7 ml
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