Question

Calculate the molecular mass of the following bit 1,2

Answer 1

Answer:

(I) 130

(II) 96

Explanation:

Answer 2

Answer:

1) Na=23. C=12. O=16. H=1 N=14 Mg=24

2)

Explanation:

1) 23×2+12+16×3+10(2+16)

106+180=286amu

2) (14+1×4)2+12+16×3

=96 amu

3). (14+2)2+12+16

=60amu

4). 24×3+14×2

=100amu

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