Which of the following is equal to 1.00 mole of substance?

Question

Quizplus · Accepted Answer

One mole of any substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23. 
Option A represents 1.00 mole of potassium atoms (K). 
Option B represents 1.00 mole of bromine molecules, where each molecule contains 2 bromine atoms (Br₂). So, 6.02 x 10^23 bromine molecules would contain 2 x 6.02 x 10^23 bromine atoms, which is also 1.00 mole of bromine atoms. 
Option C represents 1.00 mole of potassium bromide (KBr) formula units, where each formula unit contains 1 potassium atom and 1 bromide atom. So, 6.02 x 10^23 potassium bromide formula units would contain 6.02 x 10^23 potassium atoms and 6.02 x 10^23 bromide atoms, which is also 1.00 mole of potassium atoms and 1.00 mole of bromide atoms. 
Therefore, all of the options represent 1.00 mole of their respective substances.

Which of the Following Is Equal to 1