The number of molecules in 48.0 grams of oxygen gas (O2) is?

Answer 1

48.0 g O2 x 1 mole O2/32 g x 6.02x10^23 molecules O2/mole O2 = 9.03x10^23 molecules of O2

Answer 2

To find the number of molecules in 48.0 grams of oxygen gas (O2), you first need to determine the number of moles of O2 using its molar mass (32 g/mol). Then, you can use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules. The calculation would be: 48.0 g / 32 g/mol = 1.5 moles of O2, and 1.5 moles x 6.022 x 10^23 molecules/mol = 9.033 x 10^23 molecules of O2.