Question

What is the Equivalent weight of potash alum

Answer 1

Equivalent weight of potash alum [K2SO4.Al2(SO4)2.24H2O] is:-
118.59



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Answer 2

The Equivalent weight of potash alum is 948 grams.

Explanation:

The molecular formula of Potash alum is$K_{2} S O_{4} \cdot A l_{2}\left(S O_{4}\right) .24 H_{2} O$

Molar mass of potassium (K) = 39 g/mol

Molar mass of sulphur (S) = 32 g/mol

Molar mass of oxygen = 16 g/mol

Molar mass of hydrogen = 2 g/mol

Molar mass of aluminium = 27 g/mol

Molar mass of potash alum

= 2(39) + (32) + 4(16) + 2(27) + 3(32) + 12(16) + 24(18)

= 948 grams.