The dye "Smoky Red" (SR) also reacts with NaOH(aq). You are in the lab and perform the following steps: Run1: 20 mL of SR stock solution (1.9 X 10-4 M) diluted to 100 mL 10 mL of NaOH stock solution (2.2 X 10-1 M) diluted to 100 mL at t=0, two above solutions are mixed SR Absorbance (Beer's Law constant = 1.2 X 105) is measured at 90 sec intervals Run2: 20 mL of SR stock solution diluted to 100 mL 20 mL of NaOH stock solution diluted to 100 mL at t=0, two above solutions are mixed SR Absorbance is measured at 60 sec intervals Reciprocal plot of SR absorbance gives q2 = 30.6 X 10-2 sec-1 The reaction of Smoky Red with sodium hydroxide solution is found to occur with a pseudo rate constant q1 of 7.3 X 10-2 sec-1. After Run 2 when volume of sodium hydroxide is doubled, q2 = 30.6 X 10-2 sec-1. Assuming the reaction is second order with respect to the dye, what is n for this reaction (round to the nearest whole number)?
The dye "Smoky Red" (SR) also reacts with NaOH(aq). You are in the lab and perform the following steps: Run1: 20 mL of SR stock solution (1.9 X 10-4 M) diluted to 100 mL 10 mL of NaOH stock solution (2.2 X 10-1 M) diluted to 100 mL at t=0, two above solutions are mixed SR Absorbance (Beer's Law constant = 1.2 X 105) is measured at 90 sec intervals Run2: 20 mL of SR stock solution diluted to 100 mL 20 mL of NaOH stock solution diluted to 100 mL at t=0, two above solutions are mixed SR Absorbance is measured at 60 sec intervals Reciprocal plot of SR absorbance gives q2 = 30.6 X 10-2 sec-1 The reaction of Smoky Red with sodium hydroxide solution is found to occur with a pseudo rate constant q1 of 7.3 X 10-2 sec-1. After Run 2 when volume of sodium hydroxide is doubled, q2 = 30.6 X 10-2 sec-1. Assuming the reaction is second order with respect to the dye, what is n for this reaction (round to the nearest whole number)?
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter6: Solutions And Colloids
Section: Chapter Questions
Problem 6.34P
Related questions
Question
The dye "Smoky Red" (SR) also reacts with NaOH(aq). You are in the lab and perform the following steps:
Run1:
- 20 mL of SR stock solution (1.9 X 10-4 M) diluted to 100 mL
- 10 mL of NaOH stock solution (2.2 X 10-1 M) diluted to 100 mL
- at t=0, two above solutions are mixed
- SR Absorbance (Beer's Law constant = 1.2 X 105) is measured at 90 sec intervals
Run2:
- 20 mL of SR stock solution diluted to 100 mL
- 20 mL of NaOH stock solution diluted to 100 mL
- at t=0, two above solutions are mixed
- SR Absorbance is measured at 60 sec intervals
- Reciprocal plot of SR absorbance gives q2 = 30.6 X 10-2 sec-1
The reaction of Smoky Red with sodium hydroxide solution is found to occur with a pseudo rate constant q1 of 7.3 X 10-2 sec-1. After Run 2 when volume of sodium hydroxide is doubled, q2 = 30.6 X 10-2 sec-1. Assuming the reaction is second order with respect to the dye, what is n for this reaction (round to the nearest whole number)?
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