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Jul 6, 2020 at 9:17 comment added Osal Thuduwage I think this is not the answer for which I have asked, I asked about the equivalence point which have every H2CO3 has converted into HCO3- and every Na2CO3 has converted into HCO3-(First equivalence point: Which has green color pointed pH=7.6(1) and pH=6.4(2) ).
Jul 6, 2020 at 9:00 history answered FrankS CC BY-SA 4.0