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Question

calculate the formula unit mass of
a. AlPO4 b. (NH4)2SO4

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Solution

Dear Student

a) Formula unit mass of AlPO4
= [27 + 31 + 4(16)]
= [27 + 31 + 64]
= 121 u.

b) Formula unit mass of ammonium sulphate is
=[2{14 + 4(1)} + 32 + 4(16)]
=[2{18} + 32 + 64]
= 36 + 32 + 64
= 132 u.
​​​​​​
Regards

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