Question

3. Write the steps in deducing the
chemical formulae of the following
compounds.
Sodium sulphate, potassium nitrate,
ferric phosphate, calcium Oxide
aluminium hydroxide​

Answer 1

Answer:

Hey dear,

● Answers -

Chemical formula is deduced on the basis of cation & anion in the compound.

1) Sodium sulphate contains Na+ cation & (SO4)2- anion, thus molecular formula of sodium sulphate is Na2SO4.

2) Potassium nitrate contains K+ cation & (NO3)- anion, thus molecular formula of potassium nitrate is KNO3.

3) Ferric phosphate contains Fe2+ cation & (PO4)2- anion, thus molecular formula of ferrous phosphate is FePO4.

4) Calcium oxide contains Ca2+ cation & O2 anion, thus molecular formula of calcium oxide is CaO.

5) Aluminium hydroxide contains Al3+ cation & OH- anion, thus molecular formula of aluminum hydroxide is Al(OH)3.