A 50.0 ml sample of a 1.00 M solution of a diprotic acid
H2A (Ka1 = 1.0 x 10-6 and Ka2=1.0x 10-19) is titrated with
1.00 M NaOH. What is the minimum volume of 1,00 M
NaOH needed to reach a pH of 6.00 ?

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

58750.08068 is the answer i think

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