A pH question....?

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The concentration of hydronium ions in a solution with a pH of 4 is how many times that of a solution with a pH of 2???

2006-12-10 09:41:28 · 4 answers · asked by Hope 1 in Science & Mathematics ➔ Chemistry

4 answers

10 to the negative 2 I would think

2006-12-10 09:45:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Each unit of pH represents a 10-fold change. It's a logarithmic scale.

So 2 pH units is a 100-fold change.

pH 4 is 1/100 the concentration of H+ ions as pH 2.

2006-12-10 17:45:26 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋

Every pH is 10 times greater than the previous, therefore the pH of 4 is 100x greater than the pH of 2, or 10^2.

Hope that helps. =]

2006-12-10 18:23:25 · answer #3 · answered by huggable 2 · 0⤊ 0⤋

10^(4-2), so 100

2006-12-10 17:55:22 · answer #4 · answered by Simply me 6 · 0⤊ 0⤋