Question

Calculate the molecular masses of the followimf. H2co3,c2h5oh,mgso4

Answer 1

1. Atomic mass of hydrogen is 1 carbon is 14 and oxygen is 16.

So the molecular mass of h2co3= 2+14+48 = 64 unit..

2. Atomic mass of carbon is 14 hydrogen is 1 and oxygen is 16.

So the molecular mass of c2h5oh = 28 + 5 + 16 + 1 = 50 unit..

3. Atomic mass of magnesium is 24 sulphur is 32 and oxygen is 16.

So the molecular mass of mgso4 = 24 + 32 + 64 = 120 unit

Answer 2

$<h2><font color = red > hey there$


$<font color = black > here we go....$






⊙ Molecular mass of H2cO3


$(1 \times 2) + 12 + (16 \times 3) \\ \\ 14 + 48 = 62u$



⊙ molecular mass of C2h5oh ( Ethanol )


$(12 \times 2) + (1 \times 5) + 16 + 1$





$24 + 5 + 17 = 46u$





⊙ molecular mass of Mg So4 ( Magnesium sulphate )


$24 + 32 + (16 \times 4) \\ \\ 56 + 64 = 120u$



Hope it helps you

Thanks for asking......



$<b > prabhudutt$