Answer:
The vinegar is highly acidic by 100 times than yogurt.
Explanation:
∵ pH = -log[H⁺]
- The concentration of H⁺ in yogurt:
∵ pH = -log[H⁺]
∴ 5 = -log[H⁺]
∴ [H⁺] = 1.0 x 10⁻⁵ M.
- The concentration of H⁺ in vinegar:
∵ pH = -log[H⁺]
∴ 3 = -log[H⁺]
∴ [H⁺] = 1.0 x 10⁻³ M.
the ratio of H⁺ in vinegar to that in yogurt = 1.0 x 10⁻³ M / 1.0 x 10⁻⁵ M = 100.0.
∴ The vinegar is highly acidic by 100 times than yogurt.
