Question

10g of sodium carbonate reacted exactly with a certain amount of hydrochloric acid
a) Calculate the mass in gram of hydrochloric acid need for sodium carbonate to react
b) Calculate the mass in gram of salts formed
c) Calculate the volume of gas produced at rtp​

Answer 1

Answer:

When dilute hydrochloric acid reacts with sodium carbonate, then sodium chloride, carbon dioxide and water are formed.

Answer 2

Answer:

(a)2CO + O22CO2

2 V 1 V 2 V

2 V of CO requires = 1V of O2

so, 100 litres of CO requires = 50 litres of O2

(b) 2H2 + O2 2H2O

2 V 1V 2V

From the equation, 2V of hydrogen reacts with 1V of oxygen

So, 200cm3 of Hydrogen reacts with = 200/2= 100 cm^3.

Hence, the unreacted oxygen is 150 - 100 = 50cm^3 of oxygen.

$thanks$