Question

Analyse the given reaction and answer the following questions

CaCO3 + 2HCL CaCl2 + H2O + X

a)Identify the product ‘X ‘ formed? 1

b)Suggest any two methods to increase​

Answer 1

Answer:

Explanation:

CaCO3 + 2HCl -----> CaCl2 + H2O + CO2.  

2.5g? g  

Mass of CaCO3= 40+12+3(16)=52+ 48= 100.  

Molar mass of CaCO3=100g.  

Mass of CaCl2= 40 + 2(35.5)= 40+ 71= 111.  

Molar mass of CaCl2=111g.  

Mass of CaCO3 (g) Mass of CaCl2 (g)  

For 100g of CaCO  

3

​  

, 111g of CaCl_2$$ is formed.

let for 2.5g of CaCO  

3

​  

, x g of CaCl  

2

​  

 is formed.

Thus, by cross multiplication,

x=111×2.5/100=2.775g=2.78g.