The titration curve of an acid titrated by a base has two axes, with the base volume on the x-axis and the solution's pH value on the y-axis.
ðə taɪtɹˈeɪʃən kˈɜːv əvən ˈæsɪd taɪtɹˈeɪɾᵻd baɪ ɐ bˈeɪs hɐz tˈuː ˈæksᵻz, wɪððə bˈeɪs vˈɑːljuːm ɔnðɪ ˈɛksˈæksɪs ænd ðə səlˈuːʃənz pˈiː ˈeɪtʃ vˈæljuː ɔnðə wˈaɪˈæksɪs.