Respuesta :

aencabo
According to the Law of Conservation, atoms are neither created nor destroyed. In this situation, the reactants are added to find the total yield.
Hence, we have the equation:
C + 2O = CO2.
Add 2.4 g of carbon and twice of 4.9 g of oxygen, the answer is 12.2 g of CO2.
Dejanras

Answer is: 6.74 grams of carbon dioxide are produced.

Balanced chemical reaction: C(s) + O₂(g) → CO₂(g).

Calculate amount of carbon and oxygen:

m(C) = 2.4 g; mass of carbon.

n(C) = m(C) ÷ M(C).

n(C) = 2.4 g ÷ 12 g/mol.

n(C) = 0.2 mol; amount of substance.

m(O₂) = 4.9 g; mass of oxygen.

n(O₂) = m(O₂) ÷ M(O₂).

n(O₂) = 4.9 g ÷ 32 g/mol.

n(O₂) = 0.153 mol; limiting reactant.

From chemical reaction: n(O₂) : n(CO₂) = 1 : 1.

n(CO₂) = 0.153 mol.

m(CO₂) = 0.153 g · 44 g/mol (molar mass of carbon dioxide).

m(CO₂) = 6.74 g.


Otras preguntas