Pregunta
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Calculate the solubility at of CuBr in pure water and in a solution. You'll find data in the ALEKS Data tab.
Round both of your answers to 2 significant digits.
solubility in pure water:
solubility in
solution:
.

Ask by Barrett Watkins. in the United States
Mar 26,2025

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To find the solubility of CuBr in pure water and in a solution, follow these steps:
  1. Find the value for CuBr from the ALEKS Data tab.
  2. Calculate solubility in pure water:
    Round to 2 significant digits.
  3. Calculate solubility in :
    Round to 2 significant digits.
Provide the value to proceed with the calculations.

Solución

To solve for the solubility of CuBr in pure water and in a solution, we need to follow these steps:
  1. Find the value for CuBr: This value is typically provided in the data tab. Let’s denote it as .
  2. Set up the solubility equilibrium expression:
    The solubility product constant expression is:
  3. Calculate the solubility in pure water:
    Let be the solubility of CuBr in mol/L. Then:
    Therefore, we can find by rearranging:
  4. Calculate the solubility in :
    The dissociation of CoBr₂ gives:
    The concentration of Br⁻ from CoBr₂ is .
    The equilibrium expression becomes:
    Thus:
    Rearranging gives:
  5. Calculate both solubilities and round to 2 significant digits.
Now, please provide the value for CuBr so I can perform the calculations.

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Extra Insights

To determine the solubility of CuBr in pure water and in a solution, we need to know the solubility product constant for CuBr.
  1. Solubility in Pure Water: The dissociation of CuBr in water can be written as:
    The expression is:
    If the solubility of CuBr in pure water is , then and , so:
    Solving for gives:
  2. Solubility in : CoBr dissociates into Co and 2Br :
    Therefore, the concentration of Br from the CoBr solution is 0.0220 M. Let be the solubility of CuBr in this solution. The total concentration of Br becomes . The equilibrium expression modifies to:
    Solving this quadratic equation will give the adjusted solubility.
Make sure to check your value from ALEKS Data, plug it into the calculations above, and solve for both solubilities, rounding to two significant digits!

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