Chemistry, asked by laxmikapil8, 1 month ago

Calculate the molecular masses of H2, O2, Cl2, CO2, Ch4, C2H6, C2H4, NH3, CH3OH.​

Answers

Answered by GINORAJ
1

Answer:

Explanation:

Moleculer mass of H  

2

 

=2×Atomic mass of H

=2×1μ=2μ

Moleculer mass of O  

2

 

=2×Atomic mass of O

=2×16μ=32μ

Moleculer mass of Cl  

2

 

=2×Atomic mass of Cl

=2×35.5μ=71μ

Moleculer mass of CO  

2

 

=Atomic mass of C+Atomic mass of O

=(12+32)μ=44μ

Similarly,  

Molecular mass of CH  

4

 

12+(4×1)=12+4=16μ

Molecular mass of C  

2

H  

6

 

24+6=30μ

Molecular mass of NH  

3

 

14+3=17μ

Molecular mass of CH  

3

OH

12+3+16+1=32μ

Answered by anjalirehan04
4

The total sum of the masses of the atoms or elements present in the molecule is termed as molecular mass.

i) Molecular mass of H2= 2 x Atomic mass of H

                                     = 2 x 1

Molecular mass of H2 = 2 u

ii) Molecular mass of O2= 2 x Atomic mass of O

= 2 x 16

Molecular mass of O2= 32 u

iii) Molecular mass of Cl2= 2 x Atomic mass of Cl

= 2 x 35.5

Molecular mass of Cl2 = 71 u

iv) Molecular mass of CO2= Atomic mass of C + 2 x Atomic mass of O

= 12 + 2 x 16

Molecular mass of CO2 = 44 u

v) Molecular mass of CH4= Atomic mass of C + 4 x Atomic mass of H

= 12 + 4 x 1

Molecular mass of CH4 = 16 u

vi) Molecular mass of C2H6= 2 x Atomic mass of C + 6 x Atomic mass of H

= 2 x 12 + 6 x 1

Molecular mass of C2H6 = 30 u

vii) Molecular mass of C2H4= 2 x Atomic mass of C + 4 x Atomic mass of H

= 2 x 12 + 4 x 1

Molecular mass of C2H4 = 28 u

viii) Molecular mass of NH3= Atomic mass of N + 3 x Atomic mass of H

= 14 + 3 x 1

Molecular mass of NH3 = 17 u

ix) Molecular mass of CH3OH= Atomic mass of C + 4 x Atomic mass of H + 1 x Atomic mass of

= 12 + 4 x 1 + 16

Molecular mass of CH3OH = 32 u

please mark me brain mark list

Similar questions