How many Hydrogen ions are in aqueous form in in a lactic acid solution of pH...

How many Hydrogen ions are in aqueous form in in a lactic acid solution of pH 5.5 of 1 mL?

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Expert Solution

PH = 5.5

-log[H+] = 5.5

[H+] = 10^-5.5

= 3.16*10^-6M

no of moles of H+ = molarity * volume in L

= 3.16*10^-6*0.001 =3.16*10^-9moles

no of H+ ions = no of moles * 6.023*10^23

= 3.16*10^-9*6.023*10^23 = 1.9*10^15 hydrogen ions

queen_honey_blossom answered 1 year ago

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