Solubility Curve Practice Problems
Dissocations Worksheet
Due Tomorrow: Nothing :)
Today, we started class by going over the Solubility Curve and Dissocations sheets. Then we started the Solubility Rules Lab. We had to test 6 different sodium, or anion, solutions (sodium carbonate, sodium chloride, sodium hydroxide, sodium iodide, sodium phosphate, and sodium sulfate) with 8 diffferent nitrate, or cation, solutions (aluminum nitrate, potassium nitrate, barium nitrate, calcium nitrate, copper (II) nitrate, iron (III) nitrate, silver nitrate, and zinc nitrate). We put 4-5 drops of each solution into two trays, which make a 6x8 grid. On our data table, we had to label the 6x8 grid that was given to us. The anion solutions ran each row, the cation solutions each column.
When we tested, we put a couple drops of each solution to see if there was any color change and/or cloudiness.
Lab Goal: To determine the solubility rules for ionic compounds by testing for precipitates.Data: A 6x8 chart to record if precipitate formed for each solution mix
Claim: Which anion testing solution made the fewest precipitates? The most precipitates?
Evidence: Cite evidence to support your claim
Reasoning: Although you did not test the bromide anion, would you expect most bromide salts to be soluble or insoluble? Site data to support your answer.
Homework: Lab due Friday
Happy Halloween!!
Next Scribe: Daniel H
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