Question

calculate the relative molecular mass of NA ²CO³​

Answer 1

Answer:

molecular mass= (atomic mass of Na × 2) + (atomic mass of carbon) + (atomic mass of oxygen × 3)

Explanation:

( 22×2) + 12 + ( 16×3)

=44 +12 + 48= 104u

Hope It helps You!...

Answer 2

106

Explanation:

NA = 2× 23=46 [atomic masa of NA = 23]

C = 1×12=12 [--------------------- C =12]

O = 3×16=48 [---------------------- O = 16]

therefore molecular masa = 46+12+48=106

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