Answer:
0.417M
Explanation:
Equation of the reaction
2HCl+Na2CO3→2NaCl+H2O+CO2
From dilution principle
no of mole=conc × volume
from the balanced equation
no of mole of Na2CO3=2× no of mole of HCl
HCl=acid=A
Na2CO3=base=B
since n=cv
Conc of base × vol of base=2× conc of acid×volume of acid
2M×5ml=2×12M×Volume of acid
volume of acid=10/24
=0.417(3 decimal place)
