A chunk of limestone, which is calcium carbonate, reacts with acid. How might you increase the rate of this reaction?
2 answers:
Answer: Option (b) is the correct answer.
Explanation:
When calcium carbonate is added to an acid then the reaction will be as follows.
The formed is easily soluble in water.
Therefore, when we crush calcium carbonate the surface area of particles will increase. As a result more number of molecules will be dispersed in the acid, hence more is the number of calcium carbonate particles more readily the reaction will occur.
Thus, we can conclude that the rate of this reaction increases when we crush the lime stone or calcium carbonate.
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Mass of H₂ needed to react with O₂ : 1.092 g
<h3>Further explanation</h3>The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.
Reaction
O₂(g) + 2H₂(g) → 2H₂O(g)
mass of O₂ : 8.75 g
mol O₂(MW=32 g/mol) :
From the equation, mol ratio of O₂ : H₂ = 1 : 2, so mol H₂ :
Mass H₂ (MW=2 g/mol) :