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Acids and Bases
Scientific Method

How much phosphoric acid is in a can of Coke?

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March 20, 2014 7:08PM

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No one knows and who claims to know something doesn't make any sense.I just bought pure phosphoric acid and if I mix it with tea or water, it takes about 1.8-2.5g per liter to produce the same level of acidic taste. The cheap generic cola I have here (that tastes almost exactly alike) also contains citric acid, so the actual amount could be lower. It is however not in the mg range as often claimed. If I also add some lemon juice, judging from the taste it is probably 1.5g per liter.