What is the total mass of hydrogen in each of the molecules?
(a)ch4
(b)chcl3
(c)c12h10o16
(d)ch3ch2ch2ch2ch3

Explanation:

a) In 1 mole of methane there are 4 moles of hydrogen atom

Atomic mass of 1 mole of hydrogen atom = 1 g

Mass of hydrogen in 1 mole of methane = 4 × 1 g = 4 g

b) In 1 mole of chloroform there are 1 mole of hydrogen atom

Atomic mass of 1 mole of hydrogen atom = 1 g

Mass of hydrogen in 1 mole of methane = 1× 1 g = 1 g

c) In 1 mole of there are 10 moles of hydrogen atom

Atomic mass of 1 mole of hydrogen atom = 1 g

Mass of hydrogen in 1 mole of = 10 × 1 g = 10 g

d)In 1 mole of there are 12 moles of hydrogen atom.

Atomic mass of 1 mole of hydrogen atom = 1 g

Mass of hydrogen in 1 mole of = 12 × 1 g = 12 g

the answer is c. nacl

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