## Chemistry: The Molecular Science (5th Edition)

The necessary volume for this titration is $2.7ml$ of $HCl$
- Notice: $Ba(OH)_2$ has 2 $OH^-$ that can be donated; therefore, if its concentration is $0.005M$, the hydroxide molarity is doubled: $0.010M$ 1. Find the volume necessary for an equal number of moles: $C_1 * V_1 = C_2 * V_2$ $0.010* 40= 0.15 * V_2$ $0.4 = 0.15 * V_2$ $V_2 = 2.7 ml$