What mass of carbon dioxide is produced when 12.0 g of carbon react with 32.0 g of oxygen to form 44.0 g of carbon dioside, which of these statements is false?

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44 g

Explanation: -

Mass of Carbon = 12 g.

Molar mass of carbon = 12 g / mol

Number of moles of C =

= 1 mol

Molar mass of O₂ = 16 x 2 = 32 g / mol

Number of moles of O₂ =

= 1 mol

The balanced chemical equation for this process is

C + O₂ →CO₂

From the equation we see

1 mol of C reacts with 1 mol of O₂

Here both the reactants are present in required amounts.

Now we see again from the balanced equation

1 mol of C gives 1 mol of CO₂

Molar mass of CO₂ = 12 x 1 + 16 x 2 = 44 g / mol

Mass of CO₂ formed = number of moles x molar mass

= 1 mol x 44 g / mol

= 44 g