Question

Caroline knows the amount of a compound in moles. To find the number of molecules in the given sample of her compound, which of the...? Which of the following must also be used in her calculation? atomic mass of each element in the compound mass of the sample in grams

Answer 1

She must use Avogadro's Number. Avogadro's number is the number of molecules in a mole of a substance, so if you have 12.4 moles of something, then you have 12.4 times Avogadro's number of molecules.

Answer 2

Avogadro's number is used.

Step-by-step explanation:

To know the number of molecules of any compound and the number of moles is known, the most ideal is to use the Avogadro number, which is defined as 6.022x10^23 molecules on one mole of any compound. If we do the conversion with the number of moles, we will obtain the number of molecules of the compound that we want.