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Which of the following when added to water will cause a significant change in the pH of the solution?
2 (NH4)2SO4
3 Na2SO4

I believe the answer is 1 & 2. is that right.

  • chemistry -

    I think the secret word here is significant.
    Yes, 1 will do it.
    Although a solution of 2 will be acidic, I don't think it is nearly as acidic as 1. Whereas 1 might change pure water from pH 7.0 to about 1 or 2, #2 probably won't change much more than 7.0 to 5.0.
    3 is not acidic at all.

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