Question

. Determine the mass in grams of 0.600 mol of oxygen molecules, O2 (grams x1mole/(mass of molecule)

Answer 1

Answer:

0.6×32=19.2

Explanation:

No of mol×molecular mass

Hope you understood!☺️

Answer 2

Given,

Moles of oxygen molecules given = 0.6

To find,

The mass equivalent of the given moles of oxygen molecules.

Solution,

We can simply solve this numerical problem by using the following process:

As per stoichiometry;

1 mole of any compound has a weight equal to its molar mass.

And, the molar mass of any compound is equal to the sum of the atomic mass of all the constituent atoms.

=> total mass of a compound = (number of moles of the compound)×(molar mass of the compound)

{Equation-1}

Now, the molar mass of an oxygen molecule, that is, O2 molecule = 2×(atomic mass of an O atom)

= 2 × 16 g = 32 grams

Now, according to the equation-1;

The total mass of the given amount of oxygen molecules

= (number of moles of the compound)×(molar mass of the compound)

{according to equation-1}

= 0.6 moles × 32 grams

= 19.2 grams

Hence, the total mass of 0.6 moles of oxygen molecules is equal to 19.2 grams.