In the reaction between bleach and dye, the bleach was in significant excess relative to the...
In the reaction between bleach and dye, the bleach was in significant excess relative to the dye.
Select all that are True.
Because bleach is in such large excess, changing its concentration
will have no impact on the rate of the reaction.
If bleach and dye had similar concentrations, we could not have
used graphs to determine the orders.
To find the order with respect to the bleach, we could have had the
dye in significant excess and used the same experimental
setup.
Undiluted bleach is best "light" reference for calibrating the
spectrometer for the reaction.
You can find the order with respect to the bleach by graphing
different versions of its concentration vs. time.
Homework Answers
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In the reaction between bleach and dye, the bleach was in
significant excess relative to the...
I am doing a lab on the determination of the equilibrium constant for the formation of...
I am doing a lab on the determination of the equilibrium constant for the formation of Fe(SCN)+2. We used a spectrometer to measure the absorption of solutions with a varying initial concentration of Fe+3, but constant concentrations of SCN-. The reaction equation of Fe+3 + SCN- —> Fe(SCN)+2. Along with the SCN- and Fe+3 stock solutions, we also combined them with .3 M HNO3. We then calculated an average molar absorptivity and the equilibrium concentration of Fe(SCN)+2. From that concentration...
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Can someone help me with these? I have the answer's below, but I don't know how to solve them (theres a cumulative standard normal distribution table we should refer to for some of these, so if you do, could you tell me where in the table to look to0?) Thank you so much! d) Two catalysts were tested for their effect on a chemical reaction. Six different measurements were performed on the reaction using each catalyst. The conversion at 1...
need help with relative rate problems Experiment 21 Data and Calculations: Rates of Chemical Reactions, Il....
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In order to measure the rate of this reaction, we utilized the fact that starch -...
In order to measure the rate of this reaction, we utilized the fact that starch - in the presence of iodine has a distinct dark blue color while the conversion of starch to its monomer leads to a more transparent/amber colored solution. While you used a simple visual analysis to verify the conversion, it is also possible to quantify the change in (starch) using a spectrophotometer. 1. Why/how was a spectrophotometer used for this purpose? EXPLAIN what this machine does...
could you help with this? help is much appreciated:) CHEMISTRY 206 Experiment 4: A KINETIC STUDY:...
could you help with this? help is much
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2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
I am not sure if the graph on number 1 would be a 0 order reaction....
I am not sure if the graph on number 1 would be a 0
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can you help me make sure of m,n,p values. LILAC Rection Name Section Experiment 16 Data...
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LILAC Rection Name Section Experiment 16 Data and Calculations: Rates of Chemical Reactions, H. A Clock Reaction (1) so A. Dependence of Reaction Rate on Concentration Reaction: 6 l'(aq) + Bro, (aq) + 6 Haq) +31(aq) + Br(aq) + 3H,0 rale ("BO, Hy A(Bro, In all the reaction mixtures used in the experiment, the color change curred when number of moles of Bro, had been used up by the reaction. The...
just one example/demonstration! Data needed to be calculated is in highlighted in green boxes. And I...
just one example/demonstration!
Data needed to be calculated is in highlighted in green boxes.
And I highlighted in red an equation (not sure if thats what you
use to calculate it) And ignore the lab instructions on completeing
a graph!! I already know how to do that in excel, just curious how
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here is the rest of that lab leading up to the question as I
know its typically...
Please help me find the average k, determining the order with respect to H2O2 (B) and...
Please help me find the average k, determining the order with
respect to H2O2 (B) and H+ (y), and what is the complete rate law
by including the experimentally numerical value of k, a, b and
y.
The lodine Clock: Initial Rate Law Kinetics - 71 Calculations Below is a description and outline for the calculations you need to complete for this laboratory. Make sure to include all of your calculations. Use extra paper if you need to Initial Concentrations:...
Can someone help me with these? I have the answer's below, but I don't know how to solve them (theres a cumulative standard normal distribution table we should refer to for some of these, so if you do, could you tell me where in the table to look to0?) Thank you so much! d) Two catalysts were tested for their effect on a chemical reaction. Six different measurements were performed on the reaction using each catalyst. The conversion at 1...
need help with relative rate problems
Experiment 21 Data and Calculations: Rates of Chemical Reactions, Il. A Clock Reaction A. Dependence of Reaction Rate on Concentration Reaction: 61(ag + BrO,ag)+ 6H(aq)3aqp+ Brap+HO0 rate irBeO, Tr-- In all the reaction mistures used in this experiment, the color change occurred when a constant predetermined aumber of moles of BrO," had been used n in the reaction The color "clock" allows you to measue the ime mgaired for this fixed number of moles...
In order to measure the rate of this reaction, we utilized the fact that starch - in the presence of iodine has a distinct dark blue color while the conversion of starch to its monomer leads to a more transparent/amber colored solution. While you used a simple visual analysis to verify the conversion, it is also possible to quantify the change in (starch) using a spectrophotometer. 1. Why/how was a spectrophotometer used for this purpose? EXPLAIN what this machine does...
could you help with this? help is much
appreciated:)
CHEMISTRY 206 Experiment 4: A KINETIC STUDY: THE REACTION OF CRYSTAL VIOLET WITH SODIUM HYDROXIDE Prelaboratory Questions This lab is the most complicated of the experiments in Chem 206. The questions in this prelaboratory exercise illustrate the calculations you will be doing with the results you will obtain, and should help you understand the reason for steps you will follow in the lab. For this reason we are not asking you...
2. If the reaction between iron(III) ion and thiocyanate ion yielded an equilibrium concentration of 0.30 M for each of these ions, what is the equilibrium concentration of the red iron(III)-thiocyanate complex? (Hint: The equilibrium constant for the reaction is in the Background section.) Show your work 3. In the reaction below, NH3(g) + H2O(1) - NH; +H30+ the equilibrium constant is 10-34. Is this reaction likely to take place? Explain your answer. iron(III) and thiocyanate ions, the equilibrium expression...
I am not sure if the graph on number 1 would be a 0
order reaction. Also on number 3 I am not sure how to do the rate
law and find k
Post-Lab Report (Use the In-lab observations to complete the laboratory report. Turn in to your Instructor when you have completed the report.) PART A. KIO, SOLUTION (SOLUTION A). Molarity of KIO, stock solution - 02_M Total volume of reaction 100 m l Initial conc. Time Mixture mL...
can you help me make sure of m,n,p values.
LILAC Rection Name Section Experiment 16 Data and Calculations: Rates of Chemical Reactions, H. A Clock Reaction (1) so A. Dependence of Reaction Rate on Concentration Reaction: 6 l'(aq) + Bro, (aq) + 6 Haq) +31(aq) + Br(aq) + 3H,0 rale ("BO, Hy A(Bro, In all the reaction mixtures used in the experiment, the color change curred when number of moles of Bro, had been used up by the reaction. The...
just one example/demonstration!
Data needed to be calculated is in highlighted in green boxes.
And I highlighted in red an equation (not sure if thats what you
use to calculate it) And ignore the lab instructions on completeing
a graph!! I already know how to do that in excel, just curious how
Ln (relative rate) and 1/T in K^-1 is calculated by hand*
here is the rest of that lab leading up to the question as I
know its typically...
Please help me find the average k, determining the order with
respect to H2O2 (B) and H+ (y), and what is the complete rate law
by including the experimentally numerical value of k, a, b and
y.
The lodine Clock: Initial Rate Law Kinetics - 71 Calculations Below is a description and outline for the calculations you need to complete for this laboratory. Make sure to include all of your calculations. Use extra paper if you need to Initial Concentrations:...
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