Question

Calculate the molecular mass of the following:- (a) h2co3 (b) c2h5oh (c) h2so4

Answer 1

atomic mass of hydrogen is 1 oxygen is 16 and carbon 14

so molecular mass of h2co3 is 2+14+48

=56

so molecular mass of h2co3 is 56 unit

do others as same

Answer 2

Answer:

a) The molecular mass of  $h_2CO_3$ is 64 unit.

b) The molecular mass of $C_2h_5OH$ is 50 unit.

c) The molecular mass of $h_2SO_4$ is 98 unit.

Step-by-step explanation:

To find : Calculate the molecular mass of the following ?

Solution :

a) $h_2CO_3$

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

$h_2CO_3=1\times 2+14+16\times 3$

$h_2CO_3=2+14+48$

$h_2CO_3=64$

The molecular mass of  $h_2CO_3$ is 64 unit.

b) $C_2h_5OH$

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

$C_2h_5OH=14\times 2+1\times 5+16+1$

$C_2h_5OH=28+5+16+1$

$C_2h_5OH=50$

The molecular mass of $C_2h_5OH$ is 50 unit.

c) $h_2SO_4$

Atomic mass of hydrogen is 1 sulphur is 32 and oxygen is 16.

$h_2SO_4=1\times 2+32+16\times 4$

$h_2SO_4=2+32+64$

$h_2SO_4=98$

The molecular mass of $h_2SO_4$ is 98 unit.