Which of the following best defines one mole of a substance?

A. Mass, in grams, of each particle of the substance.

B. Mass, in grams, of the nuclear us of the substance's atoms.

C. Amount of substance present in one atom of the substance

D. Amount of substance present in Avogadro's number of particles of the substance

Question

Chemistry

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11 March, 17:45

Which of the following best defines one mole of a substance?

A. Mass, in grams, of each particle of the substance.

B. Mass, in grams, of the nuclear us of the substance's atoms.

C. Amount of substance present in one atom of the substance

D. Amount of substance present in Avogadro's number of particles of the substance

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Answers (1)

Know the Answer?

Deangelo Dalton · Answer 1

Answer: D

Explanation:

A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains 6.022140857 x 1023 of carbon atoms (to 10 significant figures)