Confused%20about%20chemical%20formulae%3F%20Here%27s%20how%20you%20write%20the%20chemical%20formula%20of%20sodium%20sulphate.
Chemical formula is deduced on the basis of cation and anion in the compound and their respective valency.
Sodium%20sulphate%20contains%20sodium%20cation%20Na+%20%26amp%3B%20sulphate%20anion%20%28SO4%292-.
The%20chemical%20formula%20is%20deduced%20as%20follows%3A
Step%201%3A%20Write%20the%20symbols%20of%20the%20radicals%20present.
%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20Na%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20SO4
Step%202%3A%20Write%20the%20valency%20below%20the%20respective%20radical.
%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20Na%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20SO4
%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20%26nbsp%3B1%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B2%20%26nbsp%3B
Step%203%3A%20Cross-multiply%20symbols%20of%20radicals%20with%20their%20respective%20valency.
%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20%26nbsp%3B%20Na%20cross-multiplies%20with%20the%20valency%20of%20sulphate%20%28i.e.%202%29.%26nbsp%3B
%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3BSO4%20cross-multiplies%20with%20the%20valency%20of%20sodium%20%28i.e.%201%29.%20%26nbsp%3B%26nbsp%3B%26nbsp%3B%20%26nbsp%3B
Step%204%3A%20Write%20the%20chemical%20formula%20of%20the%20compound.
%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%20Na2SO4
%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Science%22%20data-user-id%3D%226RhBHV5lGAXq%22%20href%3D%22/topic/science%22%3E%23Science%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Chemistry%22%20data-user-id%3D%22bKrOrYAQenIK%22%20href%3D%22/topic/chemistry%22%3E%23Chemistry%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Onlineclass%22%20data-user-id%3D%22DnVlsvBIQmFC%22%20href%3D%22/topic/online-class%22%3E%23Onlineclass%3C/a%3E%26nbsp%3B
%26nbsp%3B
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