Question

Write the steps in deducing the chemical formulae of ferric phosphate.

Answer 1

Step 1: Write down the symbols of the atoms.​ [1 Mark]
Iron : Fe Phosphate: $P{O}_4$​
Step 2: Write down the valency of the respective atoms. [1 Mark]​
Iron : Fe Phosphate: $P{O}_4$ ​
3+ 3-​
Step 3: Cross multiple symbols of the atoms with their respective valency.​ ​ ​ ​[1 Mark]

Step 4: Write down the chemical formula of the compound. ​ [1 Mark]$FeP{O}_4$