M is a bivalent metal. Write down the steps to find the chemical formulae of its compounds formed with the radicals, sulphate and phosphate. Write answers to the question and explain your answers.
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Bivalent metal means that the valency of M is 2+.
The steps which must be followed to calculate the chemical formula of its compounds are-
•First, find the valency of the other radical/element.
•Considering any other element/radical N with a valency of x, the chemical formula of the resultant compound would be MxN2 and if x is equal to 2-, then the chemical formula would be MN.
So, the chemical formula of it’s compound formed with sulphate (SO4) and phosphate (PO4) would be :
SO4 : Sulphate radical has a valency of 2-. Hence, the the formula would be MSO4
PO4 : Sulphate radical has a valency of 3-. Hence, the the formula would be M3(PO4)_2
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