Question

Calculate the mass of CO2 that has the same number of molecules as there are in 16g of SO2

Answer 1

Answer:

When you say oxygen, do you mean oxygen in it’s separated state or oxygen in terms of its molecular state? Anyways, I’ll give you answers to both.

Separated Oxygen (O):

Atomic mass of oxygen is 16.00.

Therefore molar mass of oxygen is also 16.00 g/mol.

Thus the mol is 40/16 = 2.5 mol

CO2 would also need that amount of moles, and CO2’s atomic and therefore molar mass is 44.01.

Therefore mass of CO2 will be 44.01 * 2.5 = 110.025 g

Oxygen Gas (O2):

Atomic mass of oxygen is 16.00.

Therefore molecular mass of oxygen gas is 32.00.

Therefore molar mass of oxygen is also 32.00 g/mol.

Thus the mol is 40/32 = 1.25 mol

CO2 would also need that amount of moles, and CO2’s atomic and therefore molar mass is 44.01.

Therefore mass of CO2 will be 44.01 * 1.25 = 55.0125g

Answer 2

Mass of sulphur dioxide = 64 g

So 1 mole = 64 g of sulphur dioxide

Therefore 16 g of sulphur dioxide = 1 × 16 = 1/ 4 mole

                                                    64

Now, 1 mole of oxygen = 32 g

So 1/4 mole of oxygen = 32   × 1/4 = 8 g

So 8 g of oxygen will contain the same number of molecules as 16 g of sulphur dioxide.