Question

Calculate the molar mass of the following compounds
Lead sulphate
Calcium phosphate​

Answer 1

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Explanation:

Explanation: Pb(SO4)2 contains 1 atom of Pb, 2 atoms of S and 8 atoms of O. So, atomic mass of Pb(SO4)2 is 207 + 64 + 128 = 399 u. Therefore, molar mass of Pb(SO4)2 is 399 g/mol.

310.18 g/mol

Answer 2

Molar mass of lead sulfate

 =  { 207.2 ( P b ) + 2 × 32.06 ( S ) + 8 × 15.99 ( O )} ⋅ g ⋅ m o l − 1 = ? ? g ⋅ m ol − 1

molar mass of Calcium phosphate

=310.18 g/mol