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

The necessary volume for this titration is $28\ ml \ NaOH$ .
1. Find the volume necessary for an equal number of moles: $(HBr) C_1 * V_1 = (NaOH) C_2 * V_2$ $0.315* 20= 0.225 * V_2$ $6.3 = 0.225 * V_2$ $V_2 = 28ml$