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Directions: Complete the following worksheet using your own data collected during lab. All values MUST include proper units and correct number of significant figures. Part A. Preparation of Standards and Samples 1. Record the molarity of the tartrazine stock solution: [Molarity] = moles of solute liters of solution of solution 2. Calculation: Show a sample calculation for calculating the molarity of solution A. Calculate the molarity of solutions B, C, and D in your lab notebook. Calculate moles of solute (Yellow #5) in solution A: [Molarity] may sauce OPLE Calculate molarity of solute (Yellow #5) in solution A: Expl Spectrophotometric Analysic of Commercial Food Dyes Purpose: The purpose is to determine the concentration of dyes in food Various Soft drinks UV-vis absorbtion absorbance characteristics. Procedure: gnature Part A. Prepareation of standards and samples 1. Obtain 100 mL of stock solution (yellow #5) in a 250 mL beaker and take it to Station work- 2. Transfer 2.000 mL of stock tr tartrazine solution to 100 mL volumetric flask. Then fill to 100 mL mark w/ deionized water. Label this as solution A. Record concentration in Table 1. 3. Repeat step 2 w/ 5.00, 10.00, and 15.00 mL yellow # S stock solution in seperate 100 mL flasks. Label each B, C, and D. Record Concentrations in Table h Table 1. Preparation of Tartrazine standards volume of Total solution stock A B C Concentration (M). Solution (m Volume (mLY 2.000mL 100ML 6.50x10-6 1.625x10-5 D 2.000. 5.00mL 100mL 10.00 mL 100 mL 15.00 mL Date E HAYDEN-MCNEIL STUDENT LAB NOTEBOOK 3.25x10-5 00ml 4.875x10-5 L -1 100.00μL Thay Note: Place fold-over back cover under copy sheet before writing Witness/TA Date

Directions: Complete the following worksheet using your own data collected during lab. All values MUST include proper units and correct number of significant figures. Part A. Preparation of Standards and Samples 1. Record the molarity of the tartrazine stock solution: [Molarity] = moles of solute liters of solution of solution 2. Calculation: Show a sample calculation for calculating the molarity of solution A. Calculate the molarity of solutions B, C, and D in your lab notebook. Calculate moles of solute (Yellow #5) in solution A: [Molarity] may sauce OPLE Calculate molarity of solute (Yellow #5) in solution A: Expl Spectrophotometric Analysic of Commercial Food Dyes Purpose: The purpose is to determine the concentration of dyes in food Various Soft drinks UV-vis absorbtion absorbance characteristics. Procedure: gnature Part A. Prepareation of standards and samples 1. Obtain 100 mL of stock solution (yellow #5) in a 250 mL beaker and take it to Station work- 2. Transfer 2.000 mL of stock tr tartrazine solution to 100 mL volumetric flask. Then fill to 100 mL mark w/ deionized water. Label this as solution A. Record concentration in Table 1. 3. Repeat step 2 w/ 5.00, 10.00, and 15.00 mL yellow # S stock solution in seperate 100 mL flasks. Label each B, C, and D. Record Concentrations in Table h Table 1. Preparation of Tartrazine standards volume of Total solution stock A B C Concentration (M). Solution (m Volume (mLY 2.000mL 100ML 6.50x10-6 1.625x10-5 D 2.000. 5.00mL 100mL 10.00 mL 100 mL 15.00 mL Date E HAYDEN-MCNEIL STUDENT LAB NOTEBOOK 3.25x10-5 00ml 4.875x10-5 L -1 100.00μL Thay Note: Place fold-over back cover under copy sheet before writing Witness/TA Date

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Using the lab instructions and data table with data, please help me complete part 1 and 2 of my lab worksheet 

Directions: Complete the following worksheet using your own data collected during lab. All values MUST include proper units and correct number of significant figures. Part A. Preparation of Standards and Samples 1. Record the molarity of the tartrazine stock solution: [Molarity] = moles of solute liters of solution of solution 2. Calculation: Show a sample calculation for calculating the molarity of solution A. Calculate the molarity of solutions B, C, and D in your lab notebook. Calculate moles of solute (Yellow #5) in solution A: [Molarity] may sauce OPLE Calculate molarity of solute (Yellow #5) in solution A:
Transcribed Image Text:Directions: Complete the following worksheet using your own data collected during lab. All values MUST include proper units and correct number of significant figures. Part A. Preparation of Standards and Samples 1. Record the molarity of the tartrazine stock solution: [Molarity] = moles of solute liters of solution of solution 2. Calculation: Show a sample calculation for calculating the molarity of solution A. Calculate the molarity of solutions B, C, and D in your lab notebook. Calculate moles of solute (Yellow #5) in solution A: [Molarity] may sauce OPLE Calculate molarity of solute (Yellow #5) in solution A:
Expl Spectrophotometric Analysic of Commercial Food Dyes Purpose: The purpose is to determine the concentration of dyes in food Various Soft drinks UV-vis absorbtion absorbance characteristics. Procedure: gnature Part A. Prepareation of standards and samples 1. Obtain 100 mL of stock solution (yellow #5) in a 250 mL beaker and take it to Station work- 2. Transfer 2.000 mL of stock tr tartrazine solution to 100 mL volumetric flask. Then fill to 100 mL mark w/ deionized water. Label this as solution A. Record concentration in Table 1. 3. Repeat step 2 w/ 5.00, 10.00, and 15.00 mL yellow # S stock solution in seperate 100 mL flasks. Label each B, C, and D. Record Concentrations in Table h Table 1. Preparation of Tartrazine standards volume of Total solution stock A B C Concentration (M). Solution (m Volume (mLY 2.000mL 100ML 6.50x10-6 1.625x10-5 D 2.000. 5.00mL 100mL 10.00 mL 100 mL 15.00 mL Date E HAYDEN-MCNEIL STUDENT LAB NOTEBOOK 3.25x10-5 00ml 4.875x10-5 L -1 100.00μL Thay Note: Place fold-over back cover under copy sheet before writing Witness/TA Date
Transcribed Image Text:Expl Spectrophotometric Analysic of Commercial Food Dyes Purpose: The purpose is to determine the concentration of dyes in food Various Soft drinks UV-vis absorbtion absorbance characteristics. Procedure: gnature Part A. Prepareation of standards and samples 1. Obtain 100 mL of stock solution (yellow #5) in a 250 mL beaker and take it to Station work- 2. Transfer 2.000 mL of stock tr tartrazine solution to 100 mL volumetric flask. Then fill to 100 mL mark w/ deionized water. Label this as solution A. Record concentration in Table 1. 3. Repeat step 2 w/ 5.00, 10.00, and 15.00 mL yellow # S stock solution in seperate 100 mL flasks. Label each B, C, and D. Record Concentrations in Table h Table 1. Preparation of Tartrazine standards volume of Total solution stock A B C Concentration (M). Solution (m Volume (mLY 2.000mL 100ML 6.50x10-6 1.625x10-5 D 2.000. 5.00mL 100mL 10.00 mL 100 mL 15.00 mL Date E HAYDEN-MCNEIL STUDENT LAB NOTEBOOK 3.25x10-5 00ml 4.875x10-5 L -1 100.00μL Thay Note: Place fold-over back cover under copy sheet before writing Witness/TA Date
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Molarity of the tartrazine(Yellow#5) stock solution = 3.25*10-4 M 

 

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