Please help me with this CH6 prac, organics

I am currently doing a prac about producing Benzoic acid, white ppt of it from phenyl methanol and this includes all of the buchner funnel method and stuff. Could you PLEASE help me with these questions:

State why the volume of the solution of the product must be kept to a minimum before crystallising.

Explain why the solution is cooled in ice at the crystallisation stage.

Explain why the product benzoic acid is washed before recrystallisation.

Define the term percentage atom economy and explain why this new concept is useful.

In a similar experiment, 2.0g of phenylmethanol gave 2.1g of benzoic acid. Explain why this does not mean the yield achieved is over 100%.

State why the melting point of solid organic compounds are often measured.

Give one reason why the recorded result could be misleading.

Tests on benzoic acid:
1.) Solubility in sodium hydroxide Result:
1 spatula of benzoic acid dissolves in approx 2cm3 to give colourless solution

Inference: Guys pls could you also try to help me with this section pls, in the inference according to my teacher, she only said that we must include a symbol equation and give a reason, in terms of chemistry, what gave the result and sort of why....

2.) Reaction with sodium hydrogen carbonate solution

Result:
Effervescence Inference: Reaction with ethanol and concentrated sulphuric acid. Heat about 0.5g of the solid with 1 cm3 of ethanol: add a few drops of concentrated sulphuric acid. Cool and pour carefully into a few cm3 of water in a test tube and note any characteristic colour

Result: Sweet smell, colourless solution, suggest ester formed

Inference:

No one did their homework three years ago, I doubt anyone will do yours now.