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A solution contains 10 g of KNO3 per 100 g of water at 30˚C. Is the solution unsaturated, saturated or supersaturated?

Posted on October 23, 2021 By Lelen2021 3 Comments on A solution contains 10 g of KNO3 per 100 g of water at 30˚C. Is the solution unsaturated, saturated or supersaturated?

A solution contains 10 g of KNO3 per 100 g of water at 30˚C. Is the solution unsaturated, saturated or supersaturated?

Chemistry

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Comments (3) on “A solution contains 10 g of KNO3 per 100 g of water at 30˚C. Is the solution unsaturated, saturated or supersaturated?”

  1. Expert says:
    October 23, 2021 at 12:08 pm

    B.) falsehope this !

    Reply
  2. brandon1748 says:
    October 23, 2021 at 1:04 pm

    Explanation:    As you can see, potassium nitrate has s solubility of about  

    67 g / 100g H

    2

    O

    at  

    40

    ∘

    C

    . This means that at  

    40

    ∘

    C

    , a saturated potassium nitrate solution will contain  

    67 g

    of dissolved salt for every  

    10 0g

    of water.

    You know that at this temperature, your solution contains  

    35 g

    of potassium nitrate in  

    100 g

    of water. This solution will be unsaturated because it contains less potassium nitrate than the maximum amount that can be dissolved.

    In order to make a saturated solution, you must get the total mass of potassium nitrate to  

    67 g

    , which means that you must add

    mass of KNO

    3

    a

    to be added

    =

    67 g

    −

    35 g

    =

    ∣

    ∣

    ∣

    ∣

    ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

    a

    a

    32 g

    a

    a

    ∣

    ∣

    −−−−−−−−

    Reply
  3. Expert says:
    October 24, 2021 at 1:26 am

    The answer is d.potassium

    Reply

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