Question #155712

What is the pH value of each of the following solutions: a) 0.0045 M HCl; b) 0.00683 M NaOH?


Expert's answer

pH = -lg [H+]

pH (HCl) = - lg [0.0045] = 2.35

pОH (NaOH) = - lg [0.00683] = 2.17

pH (NaOH) = 14 - 2.17 = 11.83



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