A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the r

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A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH?

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Phúc Điền 26 mins 2021-07-22T11:20:59+00:00 1 Answers 0 views 0

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    2021-07-22T11:22:37+00:00

    Answer:

    This question lacks options, the options are:

    A. 1

    B. 3

    C. 6

    D. 11

    The answer is C. 6

    Explanation:

    pH of a solution refers to the concentration of hydrogen ions in that solution. A scale is used to measure pH of a solution.

    * A pH value less than (<) 7 is said to be ACIDIC. The lesser the number, the more acidic

    * A pH value of exactly 7 is said to be NEUTRAL

    * A pH value above (>) 7 is said to be BASIC OR ALKALINE. The higher the number, the more alkaline.

    According to this question, two solutions of equal volume with pH values of 2 and 12 respectively were combined. Based on the explanation of pH scale, the solution with pH 2 is said to be very ACIDIC while the solution with pH 12 is said to be very ALKALINE.

    Hence, if this two solutions are combined, a neutralization will occur which will result to a solution with close to neutral pH (7). In the above options, 6 is the closest pH value to NEUTRAL and hence, the most likely pH of the resulting solution.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )