Question

The formula mass of Potassium Sulphate( K2SO4) is ______ u [ Given atomic masses K = 39u S = 32u O = 16u ] ​

Answer 1

Answer:

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ANSWER

Formula unit mass of ZnO=(Atomic mass of Zn)+(Atomic mass of O)

=(65+16)u =81u

Formula unit mass of Na 2

O=(2×23)+16

=62u

Formula unit mass of K 2 CO 3

=(2×39)+12+(3×16)

=138u

Answer 2

Atomic mass = (39*2+32+16*4)u
= (78+32+64)u
= 174u
I hope this helps you