Question

Calculate the molecular mass of
c) Sodium Sulphate d) Calcium Phosphate

Answer 1

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Answer 2

Answer:

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Explanation:

Name Symbol Atomic mass

Sodium Na 23

Sulphur S 32

Oxygen O 16

Calcium Ca 40

Phosphorus P 31

Formula of sodium sulphate =Na2SO4

• Molar mass of Sodium sulphate

= 2× 23+32+4×16= 142 a. m. u

Formula of CalciumPhosphate=Ca3(PO4) 2

• Molar mass of CalciumPhosphate

= 3×40+2(31+4×16)= 310 a. m. u

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