How many mole of 'HI' will react with

How many moles of HI can react with 1 mol of the following compound?

How many moles of CH_(3)I will react with one moles of the ethylamine to form a quarternary salt ?

How many moles of NaHCO_3 react with compound 'A' to form salt.

How many mole of HI racts with glycerol to give 2-iodopropane?

In the reaction between dilute nitric acid and magnesium metal, (a) how many moles of HNO_(3) reacts with a gram atom of metal? and (b) how many moles of HNO_(3) is oxidised by a gram atom of metal?