solution of sodium thiosulfate, Na2S203, is 0.4203 M. 8.52 mL of this solution reacts with 26.21 mL of I₂ solution. What is the molarity of the 12 solution? Na2S203) + 12-Na₂S406 + 2(Nal) Submit Answer Tries 0/99 29.07 mL of the 12 solution from above is required to titrate a sample containing As2O3. Calculate the mass of As2O3 (197.8 g/mol) in the sample. As2O3 + 5(H₂0) + 212 2(H3ASO4) + 4HI Submit Answer Tries 0/99 This discussion is closed.

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**Titration Problem**

A solution of sodium thiosulfate, \( \text{Na}_2\text{S}_2\text{O}_3 \), is 0.4203 M. 8.52 mL of this solution reacts with 26.21 mL of \( \text{I}_2 \) solution. What is the molarity of the \( \text{I}_2 \) solution?

Chemical Reaction:
\[ 
\text{I}_2 + 2\text{Na}_2\text{S}_2\text{O}_3 \rightarrow \text{Na}_2\text{S}_4\text{O}_6 + 2\text{NaI} 
\]

**Submit Answer**  
Tries 0/99

---

29.07 mL of the \( \text{I}_2 \) solution from above is required to titrate a sample containing \( \text{As}_2\text{O}_3 \). Calculate the mass of \( \text{As}_2\text{O}_3 \) (197.8 g/mol) in the sample.

Chemical Reaction:
\[ 
\text{As}_2\text{O}_3 + 5\text{H}_2\text{O} + 2\text{I}_2 \rightarrow 2\text{H}_3\text{AsO}_4 + 4\text{HI} 
\]

**Submit Answer**  
Tries 0/99

**Discussion Status:** Closed
Transcribed Image Text:**Titration Problem** A solution of sodium thiosulfate, \( \text{Na}_2\text{S}_2\text{O}_3 \), is 0.4203 M. 8.52 mL of this solution reacts with 26.21 mL of \( \text{I}_2 \) solution. What is the molarity of the \( \text{I}_2 \) solution? Chemical Reaction: \[ \text{I}_2 + 2\text{Na}_2\text{S}_2\text{O}_3 \rightarrow \text{Na}_2\text{S}_4\text{O}_6 + 2\text{NaI} \] **Submit Answer** Tries 0/99 --- 29.07 mL of the \( \text{I}_2 \) solution from above is required to titrate a sample containing \( \text{As}_2\text{O}_3 \). Calculate the mass of \( \text{As}_2\text{O}_3 \) (197.8 g/mol) in the sample. Chemical Reaction: \[ \text{As}_2\text{O}_3 + 5\text{H}_2\text{O} + 2\text{I}_2 \rightarrow 2\text{H}_3\text{AsO}_4 + 4\text{HI} \] **Submit Answer** Tries 0/99 **Discussion Status:** Closed
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