Respuesta :
When sodium sulfate reacts with carbon, then carbon dioxide and sodium sulfide are formed. When 5 gm of sodium sulfate reacts then 0.854 gms of carbon is consumed.
What is a stoichiometry balanced equation?
A stoichiometry balanced equation is the use of the reaction to calculate the moles and the mass of the reactant consumed or the products produced.
The balanced chemical reaction:
1 Na₂SO₄ + 2 C → Na₂S + 2 CO₂
1 mole of sodium sulfate requires 2 moles of carbon to produce 1 mole and 2 moles of sodium sulfide and carbon dioxide respectively.
The molar mass of sodium sulfate = 142.05 gm
Two moles of carbon weigh = 24.02 gms
If 1 mole combines with 2 moles of carbon then 142.05 gms reacts with 24.02 gms of carbon. Hence, 5.00 gm reacts to:
(5 × 24.02) ÷ 142.05 = 0.845 gms
Therefore, 0.845 gms of carbon is used by 5 gms of sodium sulfate.
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