A chemist dissolves 208. mg of pure sodium hydroxide in enough water to make up 50. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Round your answer to 2 significant decimal places. X

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Problem Statement:**

A chemist dissolves 208 mg of pure sodium hydroxide in enough water to make up 50 mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.)

Round your answer to 2 significant decimal places.

**Interactive Elements:**

- There is an input box for entering the calculated pH value.
- A set of action buttons includes:
  - "X" button to clear the input
  - A reset icon to refresh the calculation

**Instructions:**

1. Use the given mass of sodium hydroxide and volume of solution to find the molarity.
2. Recall the relationship between molarity of NaOH and the concentration of OH⁻ ions.
3. Use the concentration of OH⁻ ions to calculate the pOH.
4. Convert the pOH to pH, considering the relationship pH + pOH = 14 at 25 °C.
5. Input the calculated pH in the provided box, rounding to 2 significant decimal places.
Transcribed Image Text:**Problem Statement:** A chemist dissolves 208 mg of pure sodium hydroxide in enough water to make up 50 mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Round your answer to 2 significant decimal places. **Interactive Elements:** - There is an input box for entering the calculated pH value. - A set of action buttons includes: - "X" button to clear the input - A reset icon to refresh the calculation **Instructions:** 1. Use the given mass of sodium hydroxide and volume of solution to find the molarity. 2. Recall the relationship between molarity of NaOH and the concentration of OH⁻ ions. 3. Use the concentration of OH⁻ ions to calculate the pOH. 4. Convert the pOH to pH, considering the relationship pH + pOH = 14 at 25 °C. 5. Input the calculated pH in the provided box, rounding to 2 significant decimal places.
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