Answer to Question #290403 in General Chemistry for Ara

Question

If 11.3 mL of 0.110 M HCl is required to neutralize 25.00 mL of a barium hydroxide solution, what is the molarity of the barium hydroxide?

2 HCl + Ba(𝑂𝐻)_2→𝐵𝑎〖𝐶𝑙〗_2 + 2 𝐻_2 𝑂

Answer 1

Correct option is A)

the titration reaction is:Ba(OH)2​+2HCl⟶BaCl2​,+H2​OAccording to the reaction, the formula for a balanced equation isNo.ofmoleculesofBa(OH)2​
VolumeofBa(OH)2​×Molarity​=No.ofmoleculesofHCl
VolumeofHCl×Molarity​
=1
25×MolarityofBa(OH)2​​=2
35×0.1​Therefore, molarity of barium hydroxide =0.07