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3. how would the following errors affect the concentration of Cl- obtained in question 2b? give your reasoning in each case. a. the student read the molarity of AgNo3 as 0.02104M instead of 0.02014M b. the student was past the endpoint of titration when he took the final buret reading.

3. how would the following errors affect the concentration of Cl- obtained in question 2b? give your reasoning in each case. a. the student read the molarity of AgNo3 as 0.02104M instead of 0.02014M b. the student was past the endpoint of titration when he took the final buret reading.

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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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3. how would the following errors affect the concentration of Cl- obtained in question 2b? give your reasoning in each case.

a. the student read the molarity of AgNo3 as 0.02104M instead of 0.02014M

b. the student was past the endpoint of titration when he took the final buret reading.

**Educational Website Transcription: Advanced Study Assignment on the Analysis of an Unknown Chloride** **Name:** Vanessa Ortega  **Section:** CHM-120-24010 **Experiment 7** **Advance Study Assignment: Analysis of an Unknown Chloride** 1. A student performed this experiment and obtained the following concentration values: 0.02813 M, 0.02802 M, and 0.02788 M. a. What is the mean concentration? _____ M b. What is the standard deviation of these results? _____ M 2. A 10.00 mL diluted chloride sample required 13.89 mL of 0.02014 M AgNO₃ to reach the Fajans endpoint. a. How many moles of Cl⁻ ion were present in the sample? (Use Eqs. 2 and 3.) \( \text{Moles of Ag}^+ = \text{Moles of AgNO}_3 \) \( = 0.02014 \text{ M} \times 0.01389 \text{ L} \) \( = 0.00028 \text{ moles} \) \( = 0.00028 \) moles Cl⁻ b. What was the concentration of chloride in the diluted solution? \( M_A = \dfrac{0.02014 \text{ M} \times 13.89 \text{ mL}}{10.00 \text{ mL}} \) \( = \dfrac{0.28}{10.00 \text{ mL}} \) \( = 0.028 \text{ M} \) c. How would the following errors affect the concentration of Cl⁻ obtained in Question 2b? Give your reasoning in each case. a. The student read the molarity of AgNO₃ as 0.02104 M instead of 0.02014 M. b. The student was past the endpoint of the titration when he took the final buret reading. **Notes for Diagrams and Equations:** - **Equation for Moles of Cl⁻ ion present in the sample:** \( \text{Moles of Ag}^+ = \text{Moles of AgNO}_3 \) \( =
Transcribed Image Text:**Educational Website Transcription: Advanced Study Assignment on the Analysis of an Unknown Chloride** **Name:** Vanessa Ortega  **Section:** CHM-120-24010 **Experiment 7** **Advance Study Assignment: Analysis of an Unknown Chloride** 1. A student performed this experiment and obtained the following concentration values: 0.02813 M, 0.02802 M, and 0.02788 M. a. What is the mean concentration? _____ M b. What is the standard deviation of these results? _____ M 2. A 10.00 mL diluted chloride sample required 13.89 mL of 0.02014 M AgNO₃ to reach the Fajans endpoint. a. How many moles of Cl⁻ ion were present in the sample? (Use Eqs. 2 and 3.) \( \text{Moles of Ag}^+ = \text{Moles of AgNO}_3 \) \( = 0.02014 \text{ M} \times 0.01389 \text{ L} \) \( = 0.00028 \text{ moles} \) \( = 0.00028 \) moles Cl⁻ b. What was the concentration of chloride in the diluted solution? \( M_A = \dfrac{0.02014 \text{ M} \times 13.89 \text{ mL}}{10.00 \text{ mL}} \) \( = \dfrac{0.28}{10.00 \text{ mL}} \) \( = 0.028 \text{ M} \) c. How would the following errors affect the concentration of Cl⁻ obtained in Question 2b? Give your reasoning in each case. a. The student read the molarity of AgNO₃ as 0.02104 M instead of 0.02014 M. b. The student was past the endpoint of the titration when he took the final buret reading. **Notes for Diagrams and Equations:** - **Equation for Moles of Cl⁻ ion present in the sample:** \( \text{Moles of Ag}^+ = \text{Moles of AgNO}_3 \) \( =
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