The molar solubility of silver chromate at a certain temperature is #2 xx 10^(-4) "mol"cdot"dm"^(-3)#. What will it become in a solution containing #"0.05 M"# #"AgNO"_3# at that same temperature?
Here's what I got.
Now, the problem provides you with the molar solubility of silver chromate at a given temperature, which essentially tells you how many moles of silver chromate can be dissolved in water before the resulting solution becomes saturated.
To find the value of the solubility product constant, look at the mole ratios that exist between silver chromate and the dissolved ions, i.e. one mole of silver chromate produces two moles of silver cation and one mole of chromate anions.
This means that you have
Use an ICE table to find the new solubility
This time, you will have
Rearrange to get
This cubic equation will produce one real value
I'll leave the answers rounded to two sig figs.
You'll see this referred to as the common-ion effect.
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To find the solubility of silver chromate in a solution containing 0.05 M AgNO3, you need to consider the common ion effect. The presence of Ag+ ions from AgNO3 will shift the equilibrium of the dissolution of silver chromate to the left, decreasing its solubility. Using the solubility product constant (Ksp) for silver chromate, you can calculate the new solubility. The expression for Ksp is [Ag+][CrO4^2-], where [Ag+] is equal to the initial concentration of AgNO3. With a concentration of 0.05 M for AgNO3, [Ag+] will be 0.05 M. So, you would use this concentration to calculate the new solubility of silver chromate.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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