A student discovers a bottle of NaOH with a partially destroyed label. How can the concentration be determined without using a pH meter?

a). The student can set-up a titration expenment, where a standardized NaOH solution is used to titrate Ha. The moles of Ft ⁺ and Off are equal at the equivalence point, therefore, the concentration of NaOH can be calculated.

b). The student can set-up a titration experiment, where a standardized HO solution is used to titrate the NaOH. The PH at the equivalence point should be z since this is a neutralization reaction, therefore, the concentration of NaOH is 1 x 10 ^-7 M.

c). The student can set-up a titration expenment, where a standardized Ha solution is used to titrate the NaOH. the moles of Mr and OH. are equal at the equivalence point, therefore, the concentration of NaOH can be calculated.