Question

20ml of sodium carbonate solution of concentration 0.02M reacted

with 19ml of hydrochloric acid solution. Calculate the concentration of

hydrochloric acid solution.​

Answer 1

Answer:

n1v1=n2v2

m1=0202m

v1=20ml

m2=x

v2=19

20×0.02=x×19

x=20×0.02/19

=0.02M