Given that mH = 1.007825 u, is the mass of a hydrogen atom 1H greater than, less

Question

Given that mH = 1.007825 u, is the mass of a hydrogen atom 1H greater than, less than, or equal to 1/12 the mass of a 12C atom? Select the correct answer and explanation.

A: 1/12 of the mass of a  12C atom is less than 1 u. Therefore, the mass of the hydrogen atom is less than 1/12 of the mass of a  12C atom.

B: 1/12 of the mass of a  12C atom is exactly 1 u. Therefore, the mass of the hydrogen atom is less than 1/12 of the mass of a  12C atom.

C: 1/12 of the mass of a  12C atom is exactly 1 u. Therefore, the mass of the hydrogen atom is greater than 1/12 of the mass of a  12C atom.

D: 1/12 of the mass of a  12C atom is greater than 1 u. Therefore, the mass of the hydrogen atom is greater than 1/12 of the mass of a  12C atom.

E: 1/12 of the mass of a  12C atom is exactly 1 u. Therefore, the mass of the hydrogen atom is equal to 1/12 of the mass of a  12C atom.

Explanation / Answer

mH = 1.007825 u

1 u is defined to be 1/12 of the mass of a. 12C atom

But mass of hydrogen atom here is greater than 1 u . So, the mass of the hydrogen atom is greater than 1/12 of the mass of a  12C atom

---------------------------------------------------------------------------------------------------------------------------------------------

Answer

C: 1/12 of the mass of a  12C atom is exactly 1 u. Therefore, the mass of the hydrogen atom is greater than 1/12 of the mass of a  12C atom

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.