CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Four aqueous solutions are prepared as follows.
• Solution W: pH = 6.6 at 37 °C (Kw=2.4×10−14)
• Solution X: [OH⁻] = 4.0 × 10⁻⁷ M at 25 °C (Kw=1.0×10−14)
• Solution Y: pOH = 6.8 at 10 °C (Kw=2.9×10−15)
• Solution Z: [H₃O⁺] = 3.2 × 10⁻⁸ M at 25 °C (Kw=1.0×10−14)
Rank the four solutions from highest acidity to lowest acidity, taking into account the temperature of each solution.