What is the molar concentration of sodium ions in a 0.450 M Na 3PO 4 solution?

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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What is the molar concentration of sodium ions in a .450 M Na3PO4 solution
**Question 12**

What is the molar concentration of sodium ions in a 0.450 M Na₃PO₄ solution?

- ○ 0.150 M
- ○ 1.80 M
- ● 1.35 M
- ○ 0.450 M

**Explanation:**

Sodium phosphate, Na₃PO₄, dissociates in water to form three sodium ions (Na⁺) for each formula unit. Thus, the concentration of sodium ions is three times the concentration of the Na₃PO₄ solution.

\[ \text{Concentration of Na⁺} = 3 \times 0.450 \, \text{M} = 1.35 \, \text{M} \]

The selected answer, 1.35 M, correctly reflects this calculation.
Transcribed Image Text:**Question 12** What is the molar concentration of sodium ions in a 0.450 M Na₃PO₄ solution? - ○ 0.150 M - ○ 1.80 M - ● 1.35 M - ○ 0.450 M **Explanation:** Sodium phosphate, Na₃PO₄, dissociates in water to form three sodium ions (Na⁺) for each formula unit. Thus, the concentration of sodium ions is three times the concentration of the Na₃PO₄ solution. \[ \text{Concentration of Na⁺} = 3 \times 0.450 \, \text{M} = 1.35 \, \text{M} \] The selected answer, 1.35 M, correctly reflects this calculation.
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