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Kevin Greenfelder ∙
Yes, 1pH is more acid than 4pH
PO43-
6.15
pH = -log[H+] Hence [H+] = 10^-pH = 10^-4 = 1 x 10^-4 mole of H+
Now 1 mole of H+ = 6.022 x 10^23. Hence 1 x 10^-4mole = 6.022 x 10^19 H+ ions.
An acid accepts an electron pair from a base.