Question

1. Write the chemical equation for the complete neutralization of a barium hydroxide solution with hydrochloric acid, Then calculate the number of milliliters of Q.15 M hydrochloric acid solution that would be required to completely neutralize 20.0 mL)of a 0.100 M solution of barium hydroxide. Ba (0t4

Answer 1

Balanced chemical equation is:

Ba(OH)2 + 2 HCl ---> BaCl2 + 2 H2O

Here:

M(Ba(OH)2)=0.1 M

M(HCl)=0.15 M

V(Ba(OH)2)=20.0 mL

According to balanced reaction:

2*number of mol of Ba(OH)2 =1*number of mol of HCl

2*M(Ba(OH)2)*V(Ba(OH)2) =1*M(HCl)*V(HCl)

2*0.1 M *20.0 mL = 1*0.15M *V(HCl)

V(HCl) = 26.6667 mL

Answer: 26.7 mL