If 8.53 × 10²⁴ molecules of a substance have a mass of 483 g, what is the molar mass of the substance?

Question

Quizplus · Accepted Answer

To find the molar mass, we need to divide the mass (483 g) by the number of molecules (8.53 × 10^24 molecules).

molar mass = mass / number of particles

molar mass = 483 g / 8.53 × 10^24 molecules

molar mass = 5.66 × 10^-23 g/molecule

Now we need to convert this to g/mol. Since we have the mass of one molecule, we can use Avogadro's number (6.022 × 10^23 molecules/mol) to find the mass of one mole of the substance.

molar mass = (5.66 × 10^-23 g/molecule) x (6.022 × 10^23 molecules/mol)

molar mass = 34.1 g/mol

Therefore, the answer is B, 34.1 g/mol.

If 853 × 1024 Molecules of a Substance Have a Mass

If 853 × 10²⁴ Molecules of a Substance Have a Mass