Rule and Graphs Solubility

Using Table F - Solubility Guidelines

By NAUDIA LAWRENCE

• If it dissolves, it is soluble.

• If it does not dissolve it is insoluble​

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Solubility tells us if something will dissolve or not

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On the left are solids that can dissolve

On the right are solids that do not dissolve

When you see these ions in a compound your first thought is they will dissolve

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This is true with exceptions​

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Ions that usually Dissolve in water

These compounds have ions that are very soluble in water

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There are a few exceptions noted in the table​

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Compounds High solubility in water

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If the soluble ions combine with any ion in the exceptions colum, they will not dissolve

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Exceptions DO NOT DISSOLVE

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These compounds have ions that are NOT soluble in water

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There are many exceptions noted in the table​

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Compounds with low solubility in water

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When you see these ions in a compound your firstthought is this wont dissolve

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This is true with exceptions​

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Ions that usually stay a solid in water

These compounds have ions that are NOT soluble in water

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There are many exceptions noted in the table​

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Compounds with low solubility in water

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How to answer Questions

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When trying to find out if a compound is soluble or insoluble

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Sodium Chloride​

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​First, break compounds apart into 2 ions

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When trying to find out if a compound is soluble or insoluble

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​Silver Chloride​

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​First, break compounds apart into 2 ions

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When trying to find out if a compound is soluble or insoluble

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​First, break compounds apart into 2 ions

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Multiple Choice

According to Table F, which ions combine with chloride ions to form an insoluble salt?

• K⁺ ions

• Pb²⁺ ions

• Ca²⁺ ions

• Na⁺ ions

Multiple Choice

According to Table F, which barium salt is insoluble in water?

• BaCO₃

• BaCl₂

• Ba(ClO₄)₂

• Ba(NO₃)₂

Multiple Choice

According to Reference Table F, which substance is soluble in water? 

• AgI

• PbCl₂

• CaSO₄

• K₂CO₃

Multiple Choice

According to Reference Table F, which compound is soluble in water?

• ZnCO₃

• ZnSO₄

• BaSO₄

• BaCO₃