Question

How many moles are present in 150g of ammonium hydrogen phosphite

Answer 1

The moles  that  are  present  in 150 g  of ammonium  hydrogen phosphite  is  1.136 moles

       calculation

The formula  of ammonium hydrogen  phosphite = (NH4)2HPO4

moles = mass/molar mass

mass= 150 g

molar mass of (NH4)2HPO4  =  [ ( 14+ 1x4)2)  +1 + 31  + ( 4 x16)] =132 g/mol

 moles is therefore = 150  g/ 132 g/mol  =1.136  moles