For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find K,,, data in the ALEKS Data tab. sp compound KCI ZnS Cal Does solubility change with pH? O yes no yes O no O yes pH = 5 highest solubility pH = 4 O pH = 2

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**Instructions:**

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find \( K_{sp} \) data in the ALEKS Data tab.

**Table Overview:**

| Compound | Does solubility change with pH? | Highest solubility   |
|----------|--------------------------------|----------------------|
|          |                                | pH = 5 | pH = 4 | pH = 2 |
|----------|--------------------------------|--------|--------|--------|
| KCl      | ⬤ no                           |        |        |        |
| ZnS      | ◯ yes / ◯ no                   | ◯      | ◯      | ◯      |
| CaI\(_2\) | ◯ yes / ◯ no                   | ◯      | ◯      | ◯      |

- **KCl:** Solubility does not change with pH.
- **ZnS:** Options are provided to indicate whether solubility changes with pH and at which pH the highest solubility occurs if it does.
- **CaI\(_2\):** Options are provided to indicate whether solubility changes with pH and at which pH the highest solubility occurs if it does.

For ZnS and CaI\(_2\), select "yes" if the solubility changes with pH and mark the corresponding pH level for highest solubility. If solubility does not change, select "no."
Transcribed Image Text:**Instructions:** For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find \( K_{sp} \) data in the ALEKS Data tab. **Table Overview:** | Compound | Does solubility change with pH? | Highest solubility | |----------|--------------------------------|----------------------| | | | pH = 5 | pH = 4 | pH = 2 | |----------|--------------------------------|--------|--------|--------| | KCl | ⬤ no | | | | | ZnS | ◯ yes / ◯ no | ◯ | ◯ | ◯ | | CaI\(_2\) | ◯ yes / ◯ no | ◯ | ◯ | ◯ | - **KCl:** Solubility does not change with pH. - **ZnS:** Options are provided to indicate whether solubility changes with pH and at which pH the highest solubility occurs if it does. - **CaI\(_2\):** Options are provided to indicate whether solubility changes with pH and at which pH the highest solubility occurs if it does. For ZnS and CaI\(_2\), select "yes" if the solubility changes with pH and mark the corresponding pH level for highest solubility. If solubility does not change, select "no."
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