The correct answer is option (a) i.e. the equilibrium constant is 0.0167
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We know,
The equilibrium constant is kc = Concentration of product/ concentartion of reactants,
kc = [C][D] / [A][B],
Now,
kc= [4.00]*[4.0] / ( [9.60] * [10.00] ) = 0.166 </span>≈ 0.167
Thus, the equilibrium constant is 0.0167
We need to measure 20.0 grams of CaCl₂ to prepare 500 mL of 0.360 M solution.
First, we need to determine the required moles of CaCl₂. We have 500 mL (0.500 L) of a 0.360 M solution (0.360 moles of CaCl₂ per liter of solution).
Then, we will convert 0.180 moles to grams using the molar mass of CaCl₂ (110.98 g/mol).
To prepare the solution, we weigh 20.0 g of CaCl₂ and add it to a beaker with enough distilled water to dissolve it. We stir it, heat it if necessary, and when we have a solution, we transfer it to a 500 mL flask and complete it to the mark with distilled water.
We need to measure 20.0 grams of CaCl₂ to prepare 500 mL of 0.360 M solution.
You can learn more about solutions here: brainly.com/question/2412491
Ionic compounds contain both cations and anions in a ratio that results in no net electrical charge