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    Just to check, do you know what a change of 1 on the pH scale will do to the [H+]?
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    (Original post by Lucofthewoods)
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Size:  517.7 KB Sorry it’s upside down, but someone please explain why it’s C. Do not have a clue
    If you calculate the hydrogen ion concentration from the pH you can use this in the rate equation for each of the possible answers.

    You need to be aware that [H+] = 10-pH

    Additionally, because you have the same k value for each possibility A- D (as they are at the same temperature), you can ignore k in this question.
 
 
 
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