Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 g
2 answers:
Answer:- The limiting reactant is HCl.
Explanation: The balanced equation is:
It's a stoichiometry problem. Masses of both the reactants are given and the questions asks to find out the limiting reactant.
We convert the given grams of each reactant to moles on dividing by its molar mass. Now, we can calculate the moles of any of the product on multiplying the moles of the reactant by mole ratio.
We do this starting with both the reactants and see which one gives less number of moles of the product. The limiting reactant is the one giving least number of moles of the product.
Molar mass of HCl is 36.46 gram per mol and that of Ca is 40.08 gram per mol.
Let's say we calculate the moles of hydrogen gas produced in the reaction. Mole ratio of to HCl is 1:2 and the mole ratio of
to Ca is 1:1 .
The calculations are as shown below:
= 1.37 mol [tex[H_2[/tex]
= 2.50 mol
From above calculations, we get the least moles of hydrogen gas from 100 grams of HCl. So, the limiting reactant is HCl.
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The given equilibrium reaction is,
The given reaction is exothermic. So, heat energy will be a product. Therefore, decreasing the temperature (heat energy) would lead to the formation of more products as when the amount of energy which is a product is reduced, there is more room for the products to form.
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Decreasing the volume would make the equilibrium shift towards the least number of moles of the gaseous substance. So, here in this equilibrium decreasing the volume would lead to the formation of more products.