What is the pH of the solution when 50.0 mL of 0.20 M HI is titrated with 15.0 mL of 0.139 M Sr(OH)2? 2HI + Sr(OH)2 → Srl₂ + 2H₂O pH = [?] Hint: Be careful of the mole ratios! pH at 15.0 mL base Enter

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## pH Calculation Problem

### Problem Statement
What is the pH of the solution when 50.0 mL of 0.20 M HI is titrated with 15.0 mL of 0.139 M Sr(OH)2?

### Chemical Reaction
The balanced chemical equation for the reaction is:
\[ 2 \text{HI} + \text{Sr(OH)}_2 \rightarrow \text{SrI}_2 + 2 \text{H}_2\text{O} \]

### Expected Result
\[ \text{pH} = \; \boxed{\;\;\;} \]

### Hint
Be careful of the mole ratios!

### Interactive Component
<pH at 15.0 mL base:> 
Enter: [Text Box for pH Input] [Enter Button]

---

*Explanation:* 

- The problem involves a titration where 50.0 mL of 0.20 M hydroiodic acid (HI) is titrated with 15.0 mL of 0.139 M strontium hydroxide (Sr(OH)2).
- You are asked to find the pH of the solution once these reagents are mixed.
- Use the balanced equation provided to determine the stoichiometry of the reaction.
- Note the 2:1 mole ratio between HI and Sr(OH)2.
- Calculate the number of moles of HI and Sr(OH)2 initially present.
- Determine the moles of HI and OH- remaining after the reaction.
- Use the remaining concentrations to calculate the pH.

---

Feel free to use the interactive component to input your final pH value and check your answer!
Transcribed Image Text:## pH Calculation Problem ### Problem Statement What is the pH of the solution when 50.0 mL of 0.20 M HI is titrated with 15.0 mL of 0.139 M Sr(OH)2? ### Chemical Reaction The balanced chemical equation for the reaction is: \[ 2 \text{HI} + \text{Sr(OH)}_2 \rightarrow \text{SrI}_2 + 2 \text{H}_2\text{O} \] ### Expected Result \[ \text{pH} = \; \boxed{\;\;\;} \] ### Hint Be careful of the mole ratios! ### Interactive Component <pH at 15.0 mL base:> Enter: [Text Box for pH Input] [Enter Button] --- *Explanation:* - The problem involves a titration where 50.0 mL of 0.20 M hydroiodic acid (HI) is titrated with 15.0 mL of 0.139 M strontium hydroxide (Sr(OH)2). - You are asked to find the pH of the solution once these reagents are mixed. - Use the balanced equation provided to determine the stoichiometry of the reaction. - Note the 2:1 mole ratio between HI and Sr(OH)2. - Calculate the number of moles of HI and Sr(OH)2 initially present. - Determine the moles of HI and OH- remaining after the reaction. - Use the remaining concentrations to calculate the pH. --- Feel free to use the interactive component to input your final pH value and check your answer!
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