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21 August, 18:26

What is the percent by mass of a solution that contains 25 g KNO3 in 400.0 g H2O?

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Answers (2)
  1. 21 August, 18:39
    0
    5.9

    Explanation: use the formula mass % = mass of solute/mass of solution x 100

    add 400g of H2O and 25g of KNO3 to get your mass of solution which is 425

    Then device 25 / 425 and multiply by 100 to get 5.88 which rounds to 5.9
  2. 21 August, 18:52
    0
    Answer: 5.9%

    Explanation:

    Edge!
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