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Calcium carbonate reacts with aqueous HCl to give CaCl2 and CO2 according to the reaction given below – CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+CO2(g)+H2O(l). what mass of CaCO3 is required to react completely with 25 mL of 0.75 M HCl?
By BYJU'S Exam Prep
Updated on: September 25th, 2023
- 0.6844
- 0.9375
- 0.4265
- 0.2785
The mass of CaCO3 required to react completely with 25 mL of 0.75 M HCl is 0.9375.
The given equation is CaCO3+2HCl –> CaCl2 + H2O + CO2
Consequently, the mole ratio of calcium carbonate to HCl is 1:2.
Number of moles of HCl = molarity x volume
= 0.75×0.025 Litres = 0.01875 moles
Therefore, the amount of calcium carbonate should be equal to half the amount of HCl.
Number of moles of CaCO3 = 1/2 x 0.01875 = 0.009375
Molar mass of CaCO3= 100u
Mass of calcium carbonate = moles x molar mass = 0.009375 x 100= 0.9375g
So option (2) is correct
Applications of Calcium Carbonate
- Most of the calcium carbonate is used in the pulp and paper industries. It allows for the development of a whiter, higher-quality pigment than other minerals and can be used as a filter and pigment.
- Calcium carbonate is used in the construction industry as a filler in concrete to improve its strength and appearance and to cleanse metals for use in building applications.
- To deliver calcium to plants and maintain the soil’s pH, calcium carbonate is also used in fertilisers.
- In addition, calcium carbonate can be used as a vitamin supplement and as an ingredient in food products for both people and animals.
- Calcium carbonate is used in water and wastewater treatment facilities to remove pollutants and acidity.
Summary:
Calcium carbonate reacts with aqueous HCl to give CaCl2 and CO2 according to the reaction given below – CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+CO2(g)+H2O(l). what mass of CaCO3 is required to react completely with 25 mL of 0.75 M HCl?
Calcium carbonate reacts with aqueous HCl to give CaCl2 and CO2 according to the reaction is given below CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+CO2(g)+H2O(l). The mass of CaCO3 required to react completely with 25 mL of 0.75 M HCl is 0.9375.