What is the total mass of hydrogen in each of the molecules?

(a) CH₄

(b) CHCl₃

(c) C₁₂H₁₀O₆

(d) CH₃CH₂CH₂CH₂CH₃

The total mass in AMU (Atomic Mass Unit) of an element is equivalent to the average of the rest mass of the proton and neutron. The atomic mass of one hydrogen atom is 1 amu.

In methane, there 4 hydrogen atoms; therefore, the mass of 4 hydrogen atoms in methane is \({\rm{1 }} \times {\rm{ 4 = 4 amu}}\)

The total mass in AMU (Atomic Mass Unit) of an element is equivalent to the average of the rest mass of the proton and neutron. The atomic mass of one hydrogen atom is 1 amu.

InCHCl₃, there is only one hydrogen atom; therefore, the mass of one hydrogen atom in CHCl₃ is 1 amu.

The total mass in AMU (Atomic Mass Unit) of an element is equivalent to the average of the rest mass of the proton and neutron. The atomic mass of one hydrogen atom is 1 amu.

InC₁₂H₁₀O₆, there are 10hydrogen atoms. Therefore, the mass of 10 hydrogen atoms in C₁₂H₁₀O₆ is \({\rm{10 }} \times {\rm{ 1 = 10 amu}}\)

The total mass in AMU (Atomic Mass Unit) of an element is equivalent to the average of the rest mass of the proton and neutron. The atomic mass of one hydrogen atom is 1 amu.

InCH₃CH₂CH₂CH₂CH₃, there are 12hydrogen atoms. Therefore, the mass of 12 hydrogen atoms in CH₃CH₂CH₂CH₂CH₃ is \({\rm{12 }} \times {\rm{ 1 = 12 amu}}\)