Question

(a) What is the mass, in grams, of a mole of \({ }^{12} \mathrm{C}\) ? (b) How many carbon atoms are present in a mole of \({ }^{12} \mathrm{C}\) ?

Short answer

(a) The mass of one mole of \({ }^{12} \mathrm{C}\) is 12 grams. (b) There are \(6.022\times 10^{23}\) carbon atoms present in a mole of \({ }^{12} \mathrm{C}\).

Step-by-step solution

Calculate the mass of one mole of \({ }^{12} \mathrm{C}\)

Since the atomic mass of \({ }^{12}\mathrm{C}\) is exactly 12 amu, the mass of one mole of \({ }^{12} \mathrm{C}\) in grams is also 12 grams. So, the mass of one mole of \({ }^{12} \mathrm{C}\) is 12 grams.

Calculate the number of carbon atoms in one mole of \({ }^{12} \mathrm{C}\)

Since one mole of any substance contains Avogadro's number of entities, one mole of \({ }^{12} \mathrm{C}\) has \(6.022\times 10^{23}\) carbon atoms. #Answer#: (a) The mass of one mole of \({ }^{12} \mathrm{C}\) is 12 grams. (b) There are \(6.022\times 10^{23}\) carbon atoms present in a mole of \({ }^{12} \mathrm{C}\).