a 25.37g sample of cleaner that contains ammonia is dissolved in water and the solution made up to 250cm3. a 25cm3 portion of this solution requires 37.3cm3 of 0.36 moldm-3 H2SO4 for neutralisation. what is the percentage of ammonia in the cleaner.
2NH3 + H2SO4 → (NH4)2SO4
Loughborough at number one