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Answer:
a. 5 moles of CO₂
b. 2 moles of NaCl
c. 3 moles of H₂CO₃
Explanation:
1a. Carbon reacts with oxygen to produce carbon dioxide according to equation below:
C + O₂ ----> CO₂
From the equation of reaction, one mole of carbon reacts with one mole of oxygen to produce one mole of carbon dioxide.
In the given reaction, therefore, 5 moles of carbon will only react with 5 moles of oxygen to produce 5 moles of carbon dioxide. Oxygen is in excess, carbon is the limiting reactant and 5 moles of carbon dioxide are produced. The equation is given below :
5 C + 6 O₂ ---> 5 CO₂
1b. Sodium reacts with chlorine to produce sodium chloride according to the equation below:
2 Na + Cl₂ ---> NaCl
From the equation of reaction, 2 moles of sodium reacts with one mole of chlorine to produce one mole of sodium chloride.
In the given reaction, therefore, 4 moles of sodium will react with only 2 moles of chlorine to produce 2 moles of sodium chloride. Chlorine is in excess, sodium is the limiting reactant and 2 moles of sodium chloride are produced. The equation is given as follows: 4 Na + 8 Cl₂ ---> 2 NaCl
1c. Carbon dioxide reacts with water to produce carbonic acid according to the equation: CO₂ + H₂O ---> H₂CO₃
From the equation of reaction one mole of carbon dioxide reacts with one mole of water to produce one mole of carbonic acid.
In the given reaction, therefore, 3 moles of carbon dioxide will react with only 3 moles of water to produce 3 moles of carbonic acid. Water is in excess, carbon dioxide is the limiting reactant and 3 moles of carbonic acid are produced. The equation is given as follows: 3 CO₂ + 4 H₂O ---> 3 H₂CO₃