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In some books the reaction "NaCl + (conc.)H2SO4 = NaHSO4 + HCl(gas),whereas in your experiment, it is mentioned that NaCl (conc.)H2SO4 = Na2SO4 + HCl. I'm

confused. Which one is right?


Both are correct
when the temperature is below 200°C we get NaHSO4 when it's above 200°C we get Na2SO4
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