Part C An impure sample of table salt that weighed 0.8571 g when dissolved in water and treated with excess AGNO3 formed 2.031 g of AgCl. What percentage of NaCl is in the impure sample? AZ

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
Chapter1: Chemical Foundations
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**Question: Part C**

An impure sample of table salt that weighed 0.8571 g, when dissolved in water and treated with excess AgNO₃, formed 2.031 g of AgCl. What percentage of NaCl is in the impure sample?

**Instructions:**

Use the given data to calculate the percentage of NaCl in the sample. You may need to use stoichiometry and molar mass calculations to determine the amount of NaCl from the amount of AgCl formed. If you require hints, refer to the interactive tools provided below the question prompt.
Transcribed Image Text:**Question: Part C** An impure sample of table salt that weighed 0.8571 g, when dissolved in water and treated with excess AgNO₃, formed 2.031 g of AgCl. What percentage of NaCl is in the impure sample? **Instructions:** Use the given data to calculate the percentage of NaCl in the sample. You may need to use stoichiometry and molar mass calculations to determine the amount of NaCl from the amount of AgCl formed. If you require hints, refer to the interactive tools provided below the question prompt.
**Part A**

Barium can be analyzed by precipitating it as BaSO₄ and weighing the precipitate. When a 0.265 g sample of a barium compound was treated with excess H₂SO₄, 8.60×10⁻² g of BaSO₄ formed. What is the percentage of barium in the compound?

Answer: 19.1%  
*Correct*

---

**Part B**

What is the percentage of sodium in pure table salt?

Report your answer as a percentage to three significant figures. 

*Input box for answer submission*
Transcribed Image Text:**Part A** Barium can be analyzed by precipitating it as BaSO₄ and weighing the precipitate. When a 0.265 g sample of a barium compound was treated with excess H₂SO₄, 8.60×10⁻² g of BaSO₄ formed. What is the percentage of barium in the compound? Answer: 19.1% *Correct* --- **Part B** What is the percentage of sodium in pure table salt? Report your answer as a percentage to three significant figures. *Input box for answer submission*
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