5. Trichloroethanoic acid, CC13COOH, is a strong acid. An acidic solution was made by dissolving 0.015 mol of the pure acid in water and making up the volume to 250 cm³. If, for this solution, [H3O+] = 0.050 mol dm³, calculate the pKa for trichloroethanoic acid. A. 1.56 B. 0.72 C. 0.60 D. 2.11 E. 0.98

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5.
Trichloroethanoic acid, CC13COOH, is a strong acid. An acidic solution was made by
dissolving 0.015 mol of the pure acid in water and making up the volume to 250 cm³. If, for
this solution, [H3O+] = 0.050 mol dm³, calculate the pKa for trichloroethanoic acid.
A. 1.56
B.
0.72
C.
0.60
D.
2.11
E. 0.98
Transcribed Image Text:5. Trichloroethanoic acid, CC13COOH, is a strong acid. An acidic solution was made by dissolving 0.015 mol of the pure acid in water and making up the volume to 250 cm³. If, for this solution, [H3O+] = 0.050 mol dm³, calculate the pKa for trichloroethanoic acid. A. 1.56 B. 0.72 C. 0.60 D. 2.11 E. 0.98
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