Anybody good at chemistry?

i need

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x.xx ml

Matches the chemical name of each oxide of phosphorus to its chemical formula

What is the equilibrium constant of aa+bb=cc+dd