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Calculate the gram molar mass of the fol...

Calculate the gram molar mass of the following.
(i) `H_(2)O` (ii) `CO_(2)` (iii) `Ca_(3)(PO_(4))_(2)`

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Verified by Experts

(i) `H_(2)O`
`"Atomic masses of H"=1, O=16`
`"Gram molar mass of "H_(2)O=(1xx2)+(16xx1)`
`=2+16`
`"Gram molar mass of "H_(2)O=18g`
(ii) `CO_(2)`
`"Atomic masses of C"=12, O=16`
`"Gram molar mass of "CO_(2)=(12xx1)+(16xx2)`
`=12+32`
`"Gram molar mass of "CO_(2)=44g`
(iii) `Ca_(3)(PO_(4))_(2)`
`"Atomic masses of Ca"=40, P=30, O=16`.
`"Gram molar mass of "Ca_(3)(PO_(4))_(2)=(40xx3)+[30+(16xx4)]xx2`
`=120+(94xx2)`
`=120+188`
`"Gram molar mass of "Ca_(3)(PO_(4))_(2)=308g`
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FULL MARKS-ATOMS AND MOLECULES-Solved Problems(Calculation of molar mass:)
  1. Calculate the gram molar mass of the following. (i) H(2)O (ii) CO(2)...

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