# Please mam sir tell me the answer Please do it on a paper with a pen Thankyou very much :) • -1 • -2
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(a) O2 - 32  Because the atomic mass of oxygen is 16, so two oxygen atoms make their mass as 32
(b) CH4 -  Atomic mass of 1 Carbon = 12
The atomic mass of 4 Hydrogen = 4
Molecular mass of CH₄ = 12 +4 = 16
(c) HNO3 -  The molar mass of nitric acid is 63.01 g/mol.
(d) H2o  -  Atomic mass of 2-Hydrogens = 2
Atomic mass of 1- Oxygen = 16
Molecular mass of H₂O = 2 + 16 = 18
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Hey i hope this will help u??

1) 32u
2)
3)
4)18u
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I hope this will help u??

a)32
b)12
c)16
d)
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(a) O2 - 32  Because the atomic mass of oxygen is 16, so two oxygen atoms make their mass as 32
(b) CH4 -  Atomic mass of 1 Carbon = 12
The atomic mass of 4 Hydrogen = 4
Molecular mass of CH₄ = 12 +4 = 16
(c) HNO3 -  The molar mass of nitric acid is 63.01 g/mol.
(d) H2O-  Atomic mass of 2-Hydrogens = 2
Atomic mass of 1- Oxygen = 16
Molecular mass of H₂O = 2 + 16 = 18
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The answer to ur question is 8 minutes.
Regards!
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A- 32
B- 16
C- 63
D- 18
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