Predicting the solubility of salts
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- Predict the solubility of ionic compounds using rules of solubility.
Which of the following salts in the list are soluble?
NaCl, AgCl, NH4OH, FeCO3, Na2CO3, K2S
- Predict the solubility of ionic compounds as products of a reaction.
Equal amounts of 0.2 M NaBr and 0.2M Pb(NO3)2 are mixed in a container and a reaction takes place.
- What are the products of this reaction?
- One of the products of this reaction forms as a precipitate. Which compound is this? Does this precipitate have low solubility?
- Apply your knowledge of solubility to explain practical problems.
Eutrophication is an environmental problem caused by plant fertilizers being 'run-off' by rain into lakes and rivers. These fertilizers cause algae to grow unchecked, which depletes rivers and lakes of their oxygen.
Ammonium nitrate and diammonium phosphate are two widely used fertilizers that cause this problem. Why would these two compounds be particularly prone to run-off?