Yogurt has an approximate pH of 5 and vinegar has an approximate pH of 3. How many times more acidic is vinegar compared to yogu
rt in terms of concentration?
1 answer:
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.
<em>∴ The vinegar is highly acidic by 100 times than yogurt.</em>
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