1972 Ap Chemistry Free Response Answers May 2026

pH = 2.87

[ [H^+] = \sqrt(0.100)(1.8 \times 10^-5) ] [ [H^+] = \sqrt1.8 \times 10^-6 ] 1972 ap chemistry free response answers

(to get 3H2 on left). [ 3H2 + 1.5O2 → 3H2O \quad ΔH = -857.4 , \textkJ ] pH = 2

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(to get 2C on left). [ 2C + 2O2 → 2CO2 \quad ΔH = -787.0 , \textkJ ]