1. Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide = 5.92 x 10-15) when dissolved in: (Ksp (a) water (at 25 °C) -5 A: 1.14×107

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**Title: Determining Molar Solubility of Cobalt(II) Hydroxide**

**Objective:**
Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide \((\text{K}_{\text{sp}} = 5.92 \times 10^{-15})\) when dissolved in:

---

**Experimental Conditions:**

1. **Water (at \(25^\circ\)C)**
   - **Answer:** \(1.14 \times 10^{-5} \, \text{M}\)

2. **An aqueous solution containing 0.1 M NaOH (at \(25^\circ\)C)**
   - **Answer:** \(5.92 \times 10^{-13} \, \text{M}\)

---

This experiment involves calculating the solubility of cobalt(II) hydroxide in different solvents, demonstrating the effect of a common ion on solubility.
Transcribed Image Text:**Title: Determining Molar Solubility of Cobalt(II) Hydroxide** **Objective:** Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide \((\text{K}_{\text{sp}} = 5.92 \times 10^{-15})\) when dissolved in: --- **Experimental Conditions:** 1. **Water (at \(25^\circ\)C)** - **Answer:** \(1.14 \times 10^{-5} \, \text{M}\) 2. **An aqueous solution containing 0.1 M NaOH (at \(25^\circ\)C)** - **Answer:** \(5.92 \times 10^{-13} \, \text{M}\) --- This experiment involves calculating the solubility of cobalt(II) hydroxide in different solvents, demonstrating the effect of a common ion on solubility.
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