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1 vote
- calculate relative formula mass

[N=14, O=16, Mg=24, Al=27]

1) Mg(NO3)2

- calculate relative molecular mass
[H=1, C=12, O=16]

1) C4H10

2) CH3COOH​

1 Answer

2 votes

Mg(NO3)2:-


\\ \sf \longmapsto \: 24u+2(14u+3* 16u)


\\ \sf \longmapsto \: 24u+2(14u+48u)


\\ \sf \longmapsto \: 24u+2(62u)


\\ \sf \longmapsto \: 24u+(124u)


\\ \sf \longmapsto \: 148u

User Richardwb
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