If 7.50 x 10²⁴ molecules of a substance have a mass of 454 g, what is the molar mass of the substance?

Question

Quizplus · Accepted Answer

To find the molar mass, use the formula: Molar mass = (mass of sample / number of moles). First, calculate the number of moles using Avogadro's number (6.022 x 10^23 molecules/mol): (7.50 x 10^24 molecules) / (6.022 x 10^23 molecules/mol) = 12.45 moles. Then, Molar mass = 454 g / 12.45 moles = 36.5 g/mol.

If 750 X 1024 Molecules of a Substance Have a Mass

If 750 X 10²⁴ Molecules of a Substance Have a Mass