Question

write the step in deducing the chemical formulae of the following compounds
2.potassium nitrate: -
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Answer 1

Explanation:

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.

Answer 2

Answer:

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.