$1)$ State the objectives of the recrystallization process.

$2)$ Calculate the percent recovery of the recrystallized salicylic acid then calculate the correct measured melting point ranges of the crude salicylic acid and recrystallized salicylic acid. Show the steps for these calculations.

$3)$ If the yield of the percent recovery is less than $100\%$ indicate why this is so$.$ Apart from any experimental errors $($such as accidental spillage$)$ also suggest at least two unavoidable sources of yield loss that are inherent in the experimental method itself.

$4)$ Comment on the purity of the recrystallized salicylic acid yield.