Answer:
49.4 grams; 9.29 x 10^23 molecules O2
Explanation:
In order to solve for the mass of oxygen, you first must find out how many moles of oxygen there are in 34.6 L.
There are 22.4 L in one mole of gas, so to get amount of moles, divide 34.6 by 22.4.
34.6 / 22.4 = 1.544 mol
In order to calculate mass, multiply the amount of moles by the molar mass of oxygen, which is in this case 32.00 g/mol.
1.544 * 32.00 = 49.4 grams
To calculate the amount of molecules, multiply the amount of moles by Avogadro's number, 6.02 x 10^23, which basically represents how many atoms/molecules there are in a mole of any substance.
1.544 * (6.02 x 10^23) = 9.29 x 10^23 molecules O2
