Question

mass of CO2 containing 8g of oxygen(O2) in grams is ?

Answer 1

Answer:

mass of co2 is 44 g

Explanation:

CO2 = 12+ 16×2 = 44 G

Answer 2

Answer:

The mass of $CO_{2}$ containing 8g of oxygen in grams is 11.

Explanation:

The chemical reaction for the formation of carbon dioxide is

$C + O_{2}$   →  $CO_{2}$

The molar mass of $O_{2}$ = 32 g/mol

Given mass of  $O_{2}$ = 8 g

Number of moles of oxygen present in 8g = $\frac{8}{32} = 0.25 mol$

Here the number of moles of oxygen is equal to the number of moles of carbon dioxide.

That is the number of moles of carbon dioxide = 0.25 moles

we know that the molar mass of carbon dioxide = 44 g/mol

∴ The mass of $CO_{2}$ = number of moles of $CO_{2}$ × molar mass of$CO_{2}$

                               = 0.25 × 44 = 11 g