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3241004551 [841]
3 years ago
9

a solution contains 4.5 times 10 to the negative 3 M HCI. Determine the hydroxide concentreation of the solution.

Chemistry
1 answer:
frosja888 [35]3 years ago
3 0
HCl ----------> H(+) + Cl(-)
0,0045-x.........x...........x
0..................0,0045...0,0045

pH = -log[H+]
pH = -log[0,0045]
pH = 2,347

pOH = 14-pH
pOH = 14-2,347
pOH = 11,653

pOH = -log[OH-]
[OH-] = 10^-pOH
[OH-] = 10^-11,653
[OH-] = 2,2233·10^-12 mol/dm³
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