![누 4. After completing Part A of this experiment, a student determines the slope of their calibration graph of absorbance versus [FeSCN] to be 5140 M1. In Part B, a student combines 2.00 mL of a 0.00200 M solution of KSCN with 5.00 mL of 0.00200 M solution of Fe(NO,), and 3.00 mL of water. The following equilibrium is established. Fe (aq)+ SCN (aq) - FeSCN (aq) The absorbance of the equilibrium solution is measured as 0.246. What is the equi librium constant for this reaction?](http://img.homeworklib.com/questions/d278aea0-7987-11eb-b819-65b1fd4240b0.png?x-oss-process=image/resize,w_560)
Homework Answers
Add Answer to:
누 4. After completing Part A of this experiment, a student determines the slope of their...
After completing Part A of this experiment, a student determines the slope of their calibration graph...
After completing Part A of this experiment, a student determines
the slope of their calibration graph of absorbance versus [FeSCN2]
to be 5140 M1. In Part B, a student combines 2.00 mL of a 0.00200 M
solution of KSCN with 5.00 mL of 0.00200 M solution of Fe(NO,), and
3.00 mL of water. The following equilibrium is established. Fe (aq)
+ SCN (aq) FeSCN (aq) The absorbance of the equilibrium solution is
measured as 0.246. What is the equilibrium constant...
4 please in part 1 gires us absorbance values for each sample , changes in concentration...
4 please
in part 1 gires us absorbance values for each sample , changes in concentration and absorbance will cause a curve 1. For each new concentration of FeSCN2+ a new absorbance will be plotted. 4. After completing Part A of this experiment, a student determines the slope of their calibration graph of absorbance versus (FeSCN to be 5140 M". In Part B, a student combines 2.00 mL of a 0.00200 M solution of KSCN with 5.00 mL of a...
DETERMINATION OF AN EQUILIBRIUM CONSTANT FOR A CHEMICAL REACTION Name TA Name (posted on A2L under...
DETERMINATION OF AN EQUILIBRIUM CONSTANT FOR A CHEMICAL REACTION Name TA Name (posted on A2L under "Grades") Lab Bench (posted on A2L under "Grades") Lab Room (posted on A2L under "Grades") Date Complete the following pre-lab questions before coming to lab. Your TA will collect this page at the start of your lab period. In your laboratory notebook, prepare the axes of your calibration graph for Part A. The graph should take up an entire page with a y-axis range...
5. A student does an experiment to determine the equili but at a higher temperature. ermine...
5. A student does an experiment to determine the equili but at a higher temperature. ermine the equilibrium constant for the same reaction that you will study, Fe** (aq) + SCN (aq) FeSCN2+ (aq) The student prepares solution 1, by mixing 5. s Solution, by mixing 5.00 ml of 0.002 M Fe(NO2)2 solution with 5.00 mL of .00011M KSCN solution, heats the mixture, and finds that the equilibrium concentration of F and finds that the equilibrium concentration of FeSCN2+ in...
What's the concentration of [FeSCN2+] using limiting reactant theory and equation? For each test tube solution...
What's the concentration of [FeSCN2+] using limiting
reactant theory and equation?
For each test tube solution enter the initial concentration of Fe+ and SCNthe equilibrium concentration of FeSCN2: into the ICE table given. Complete entries for the rest of the table and calculate the K value for each of the tables. The values of K should be confined to a narrow range to reflect constancy. Comment on the quality of your work in this regard and calculate the average K....
2. In Part A of this experiment, you prepare five FeSCN solutions (one that is just...
2. In Part A of this experiment, you prepare five FeSCN solutions (one that is just a blank) according to the reaction below Fe (aq) SCN (aq) > FeSCN (a) SCN formed We assume that the starting SCN determines the concentration of Fe (because Fe is in excess and SCN is limiting). Calculate the concentration ot FeSCN2 that forms for each of the solutions (Beakers 1-4) and fill out the table below. Show your calculations beneath the table. Concentration of...
4.81 mL of 0.00200 M Fe(NO3)3, 2.85 mL of 0.00200 M KSCN and 2.34 mL of...
4.81 mL of 0.00200 M Fe(NO3)3, 2.85 mL of 0.00200 M KSCN and 2.34 mL of distilled water were mixed. The resulting solution was allowed to attain equilibrium at 24 oC. The absorbance of the equilibrium solution was recorded, and the [FeSCN2+] was determined graphically to be 7.58 x 10-5 M. Part A: Calculate the number of moles of Fe3+ initially added to the solution. Part B: Calculate the number of moles of FeSCN2+ formed in the solution at equilibrium....
Question 13 of 13> Attempt 1 A standard solution of FeSCN2+ is prepared by combining 9.0...
Question 13 of 13> Attempt 1 A standard solution of FeSCN2+ is prepared by combining 9.0 ml of 0.20 M Fe(NO) with I.0 mL of 0.0020 M KSCN. The standard solution had an absorbance of 0.540. Fe* (ag)+SCN (ag)FeSCN*(a) A trial solution was made in a similar manner, but with a more dilute Fe(NO,), reagent. The initial SCN" concentration. immediately after mixing, was 0.00060 M. This trial solution had absorbance of 0.250. What is the equilibrium concentration of SCN in...
Section Name Experiment 23 Advance Study Assignment: Determination of the Equilibrium Constant for a Chemical Reaction...
Section Name Experiment 23 Advance Study Assignment: Determination of the Equilibrium Constant for a Chemical Reaction 1. A student mixes 5.00 mL 2.00 X 10M Fe(NO), with 5.00 ml 2.00 x 10-M KSCN. She finds that in the equilibrium mixture the concentration of FeSCN is 1.40 x 10M. Find K for the reaction Fe(aq) + SCN (aq) FeSCN2(aq). Step 1 Find the number of moles Fe and SCN initially present. (Use Eq. 3.) (5.00 x103 LX (300X163) = (x 103...
fill out the chart Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water,...
fill out the chart
Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water, mL (Fe) Solution Fe(NO3). mL M [SCN] initia M Spectrophotometric determination of (FeSCN) (Calibration curve: A =1269.6c) Solution Measured absorbance Calculated (FeSCN).M alvo Instructions In separate test tubes, make the 5 solutions according to the table below. Then stir each solution. Solution Fe(NO3)3, mL KSCN, mL 2.00 x 10M 2.00 x 10M Dl water, ml 5.0 5.0 0.0 5.0 4.0 1.0 5.0 3.0 2.0...
After completing Part A of this experiment, a student determines
the slope of their calibration graph of absorbance versus [FeSCN2]
to be 5140 M1. In Part B, a student combines 2.00 mL of a 0.00200 M
solution of KSCN with 5.00 mL of 0.00200 M solution of Fe(NO,), and
3.00 mL of water. The following equilibrium is established. Fe (aq)
+ SCN (aq) FeSCN (aq) The absorbance of the equilibrium solution is
measured as 0.246. What is the equilibrium constant...
4 please
in part 1 gires us absorbance values for each sample , changes in concentration and absorbance will cause a curve 1. For each new concentration of FeSCN2+ a new absorbance will be plotted. 4. After completing Part A of this experiment, a student determines the slope of their calibration graph of absorbance versus (FeSCN to be 5140 M". In Part B, a student combines 2.00 mL of a 0.00200 M solution of KSCN with 5.00 mL of a...
DETERMINATION OF AN EQUILIBRIUM CONSTANT FOR A CHEMICAL REACTION Name TA Name (posted on A2L under "Grades") Lab Bench (posted on A2L under "Grades") Lab Room (posted on A2L under "Grades") Date Complete the following pre-lab questions before coming to lab. Your TA will collect this page at the start of your lab period. In your laboratory notebook, prepare the axes of your calibration graph for Part A. The graph should take up an entire page with a y-axis range...
5. A student does an experiment to determine the equili but at a higher temperature. ermine the equilibrium constant for the same reaction that you will study, Fe** (aq) + SCN (aq) FeSCN2+ (aq) The student prepares solution 1, by mixing 5. s Solution, by mixing 5.00 ml of 0.002 M Fe(NO2)2 solution with 5.00 mL of .00011M KSCN solution, heats the mixture, and finds that the equilibrium concentration of F and finds that the equilibrium concentration of FeSCN2+ in...
What's the concentration of [FeSCN2+] using limiting
reactant theory and equation?
For each test tube solution enter the initial concentration of Fe+ and SCNthe equilibrium concentration of FeSCN2: into the ICE table given. Complete entries for the rest of the table and calculate the K value for each of the tables. The values of K should be confined to a narrow range to reflect constancy. Comment on the quality of your work in this regard and calculate the average K....
2. In Part A of this experiment, you prepare five FeSCN solutions (one that is just a blank) according to the reaction below Fe (aq) SCN (aq) > FeSCN (a) SCN formed We assume that the starting SCN determines the concentration of Fe (because Fe is in excess and SCN is limiting). Calculate the concentration ot FeSCN2 that forms for each of the solutions (Beakers 1-4) and fill out the table below. Show your calculations beneath the table. Concentration of...
Question 13 of 13> Attempt 1 A standard solution of FeSCN2+ is prepared by combining 9.0 ml of 0.20 M Fe(NO) with I.0 mL of 0.0020 M KSCN. The standard solution had an absorbance of 0.540. Fe* (ag)+SCN (ag)FeSCN*(a) A trial solution was made in a similar manner, but with a more dilute Fe(NO,), reagent. The initial SCN" concentration. immediately after mixing, was 0.00060 M. This trial solution had absorbance of 0.250. What is the equilibrium concentration of SCN in...
Section Name Experiment 23 Advance Study Assignment: Determination of the Equilibrium Constant for a Chemical Reaction 1. A student mixes 5.00 mL 2.00 X 10M Fe(NO), with 5.00 ml 2.00 x 10-M KSCN. She finds that in the equilibrium mixture the concentration of FeSCN is 1.40 x 10M. Find K for the reaction Fe(aq) + SCN (aq) FeSCN2(aq). Step 1 Find the number of moles Fe and SCN initially present. (Use Eq. 3.) (5.00 x103 LX (300X163) = (x 103...
fill out the chart
Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water, mL (Fe) Solution Fe(NO3). mL M [SCN] initia M Spectrophotometric determination of (FeSCN) (Calibration curve: A =1269.6c) Solution Measured absorbance Calculated (FeSCN).M alvo Instructions In separate test tubes, make the 5 solutions according to the table below. Then stir each solution. Solution Fe(NO3)3, mL KSCN, mL 2.00 x 10M 2.00 x 10M Dl water, ml 5.0 5.0 0.0 5.0 4.0 1.0 5.0 3.0 2.0...
Most questions answered within 3 hours.
-
Bank of America has bonds that pay a coupon interest rate of 5.5
percent and mature...
asked 3 minutes ago -
Problem: Patient Fees C++
You are to write a program that computes a patient’s bill for...
asked 1 hour ago -
In a population of interest, we know that, 77% drink coffee, and
23% drink tea. Assume...
asked 2 hours ago -
Given that f(x) = e-(x-1) for x > 1, determine the following
probabilities:
a) P(X <...
asked 1 hour ago -
A mechanic pushes a 2.60 ✕ 103-kg car from rest to a speed of v,
doing...
asked 1 hour ago -
International information systems result in all of the following
except:
A. improved quality of information flow....
asked 1 hour ago -
The president of the retailer Prime Products has just approached
the company’s bank with a request...
asked 1 hour ago -
If the carrying amount is $200,000 and recoverable amount is
$205000, the impairment amount is:
Select...
asked 1 hour ago -
The correlation is inappropriate as a measure of association
between two quantitative variables (you may select...
asked 2 hours ago -
USE THE DATA IN THE TABLE BELOW TO ANSWER QUESTIONS 19 – 24
(Assume all account...
asked 2 hours ago -
Mahaley, Inc., manufactures and sells two products: Product Q9
and Product F0. Data concerning the expected...
asked 2 hours ago -
To measure the current through one branch of a parallel circuit,
the meter is connected ________....
asked 2 hours ago