Predict whether a precipitate will form when calcium nitrate is mixed with potassium sulfate. Explain your response using the relevant solubility rules.
Question
Predict whether a precipitate will form when calcium nitrate is mixed with potassium sulfate. Explain your response using the relevant solubility rules.
Solution 1
When calcium nitrate (Ca(NO3)2) is mixed with potassium sulfate (K2SO4), a double displacement reaction occurs. The products of this reaction are calcium sulfate (CaSO4) and potassium nitrate (KNO3).
The solubility rules state that all nitrates (NO3-) are soluble, and most sulfates (SO4^2-) are soluble, with some exceptions including calcium sulfate.
So, when these two solutions are mixed, the calcium (Ca^2+) ions from calcium nitrate will combine with the
Solution 2
To predict whether a precipitate will form when calcium nitrate is mixed with potassium sulfate, we need to consider the solubility rules.
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First, write down the chemical formulas for the reactants: calcium nitrate (Ca(NO3)2) and potassium sulfate (K2SO4).
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Next, predict the possible products of the reaction using the principle of 'Partner Swapping'. Calcium (Ca2+) might combine with sulfate (SO4 2-) and potassium (K+) might combine with nitrate (NO3-). This gives us the potential products: calcium sulfate (CaSO4) and potassium nitrate (KNO3).
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Now, refer to the solubility rules. The rules state that all nitrates (NO3-) are soluble, so potassium nitrate (KNO3) will be soluble. However, for sulfates (SO4 2-), the rules state that most sulfates are soluble, except for those of calcium, strontium, barium, and lead. Therefore, calcium sulfate (CaSO4) is likely to be insoluble.
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Since calcium sulfate (CaSO4) is insoluble, it will form a precipitate when calcium nitrate is mixed with potassium sulfate.
So, yes, a precipitate will form when calcium nitrate is mixed with potassium sulfate.
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