Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
3. Experimental Procedure, Part A.1. For preparing a set of standard solutions of FeNCS, the equilibrium...
#1, #3, and #5-7 please!!! Pre-Lab Questions 1. Write the balanced chemical equation for the formation...
#1, #3, and #5-7 please!!!
Pre-Lab Questions 1. Write the balanced chemical equation for the formation of FeSCN2" from Fe(NO3)3-9H:0 and NaSCN. 2. In this experiment a dilute solution of 0.1 M HNO is used to maintain the ionic strength and low pH needed for the reaction to occur. How is nitric acid classified in terms of MSDS? What are some of the safety concerns regarding the handling of nitric acid? 3. Look at the procedure for making the standard...
1. You prepare a mixture to use to create a colorimetry calibration curve for FeSCN2+ by...
1. You prepare a mixture to use to create a colorimetry calibration curve for FeSCN2+ by mixing these things in a 25.00 mL volumetric flask and then diluting to the volume of the flask with 0.3 M HNO3. 5.00 mL 0.00200 M NaSCN 10.00 mL 0.30 M Fe(NO3)3 What is the concentration of FeSCN2+ in this mixture? [Pay attention to the values to determine which reactant is being driven to completely react...] 2. You prepare a mixture to use to...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL of 0.2 M Fe(NO)) diluted to 50 mt with H:O Why is this solution preferred to simply using de-ionized water for the calibration? Te celibutoneans ser He astanat os errors-free Te deionized woser alane sho no abtorpton 5. A reaction mixture of 4.00 mL. of 0.00200 M SCN and 5.00 mL of 0.00200 M Fe is uoreangth diluted to 10.00 mL with 0.1 M...
please help asap and the values are from the procedure there is no additional info QUESTION. PROCEDURE 1. Obtai...
please help asap and the values are from the procedure there is no
additional info
QUESTION.
PROCEDURE 1. Obtain seven spectrophotometer tubes, three 5 mL pipets and seven 125 mL Erlenmeyer flasks. One for the blank and six sample test tubes. Make sure to label the test tubes with appropriated calculated concentration. Label one flask as NaSCN 2. Pipet 5 mL of 0.00020 M NaSCN into Erlenmeyer flask #1. Pipet 5 mL of 0.20 M Fe(NO3)3 into Erlenmeyer flask #1....
REPORT SHEET EXPERIMENT Colorimetric 22 Determination of an Equilibrium Constant in Aqueous Solut...
Determination of the equilibrum constant
REPORT SHEET EXPERIMENT Colorimetric 22 Determination of an Equilibrium Constant in Aqueous Solution A. Preparation of the Calibration Curve Concentration of Fe(NO,), in 0.10 M HNO, solution Concentration of NaSCN in 0.10 M HNO, solution Y Y Flask Number 2 Volume of NaSCN, mL Solution Initial [SCN 1.M Equil. [FeNCs". M Percent T Absorbance B. Determination of the Equilibrium Constant Concentration of Fe(NO,) in 0.10 M HNO, solution Concentration of NaSCN in 0.10 M HNO,...
Calculate the initial concentration of iron(III) in solution #1, #2, #3. Beaker (mL) Table 1. Reagent...
Calculate the initial concentration of iron(III) in
solution #1, #2, #3.
Beaker (mL) Table 1. Reagent Solutions Provided by the Stockroom Solution Name Reagent [Reagent] (M) Volume (mL) Standard iron Fe(NO3)3 2.50 x 10 in 0.10 M HNO3 nitric acid HNO3 0.10 120 35 50 250 conc. SCN KSCN 0.50 30 50 dilute SCN KSCN 2.50 x 10-3 30 50 Worksheet 1 #1 5.00 #2 10.00 #3 15.00 Dilute iron (mL) [Fe**] (M) [Fe(SCN)?*] (M) %T 480 58.9 35.8 21.5...
5. In this experiment, you will prepare a standard solution for a calibration curve for the...
5. In this experiment, you will prepare a standard solution for a calibration curve for the formation of FeSCN2 complex by reaction different volumes of 0.2 M Fe(NO,), and 0.002 M NaSCN. You will use 0.05M HNO, for all dilutions. Using the table, Calculate the equilibrium concentrations of FeSCN2 Vol of Fe Vol of SCN 0.1 M HNO Equilibrium concentration Fe[SCN]2' (mL) (mL.) (mL) 10.00 0.00 10.00 10.00 1.00 9.00 10.00 2.00 8.00 10.00 3.00 7.00 10.00 4.00 6.00 10.00...
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2....
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2. In part A of Experiment 34, it was assumed that all of the SCN added to the reaction mixture was converted to product (FeNCS). Which of the following best explains why that assumption was valid? A) The moles of Fe added equaled the moles of SCN- added. B) In part A, the SCN was the limiting reactant whereas in part B,...
A chemist needs to create a series of standard Cu2+ (aq) solutions for an absorbance experiment....
A chemist needs to create a series of standard Cu2+ (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 10.00 mL of a 2.68 M Cu2+ (aq) stock solution to a 250.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 10.00 mL of the second solution to a 50.00 mL volumetric flask, and he adds enough water to dilute to...
A chemist needs to create a series of standard Cu- (aq) solutions for an absorbance experiment....
A chemist needs to create a series of standard Cu- (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 20.00 mL of a 2.64 M Cup (aq) stock solution to a 500.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 25.00 mL of the second solution to a 100.0 mL volumetric flask, and he adds enough water to dilute to...
#1, #3, and #5-7 please!!!
Pre-Lab Questions 1. Write the balanced chemical equation for the formation of FeSCN2" from Fe(NO3)3-9H:0 and NaSCN. 2. In this experiment a dilute solution of 0.1 M HNO is used to maintain the ionic strength and low pH needed for the reaction to occur. How is nitric acid classified in terms of MSDS? What are some of the safety concerns regarding the handling of nitric acid? 3. Look at the procedure for making the standard...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL of 0.2 M Fe(NO)) diluted to 50 mt with H:O Why is this solution preferred to simply using de-ionized water for the calibration? Te celibutoneans ser He astanat os errors-free Te deionized woser alane sho no abtorpton 5. A reaction mixture of 4.00 mL. of 0.00200 M SCN and 5.00 mL of 0.00200 M Fe is uoreangth diluted to 10.00 mL with 0.1 M...
please help asap and the values are from the procedure there is no
additional info
QUESTION.
PROCEDURE 1. Obtain seven spectrophotometer tubes, three 5 mL pipets and seven 125 mL Erlenmeyer flasks. One for the blank and six sample test tubes. Make sure to label the test tubes with appropriated calculated concentration. Label one flask as NaSCN 2. Pipet 5 mL of 0.00020 M NaSCN into Erlenmeyer flask #1. Pipet 5 mL of 0.20 M Fe(NO3)3 into Erlenmeyer flask #1....
Determination of the equilibrum constant
REPORT SHEET EXPERIMENT Colorimetric 22 Determination of an Equilibrium Constant in Aqueous Solution A. Preparation of the Calibration Curve Concentration of Fe(NO,), in 0.10 M HNO, solution Concentration of NaSCN in 0.10 M HNO, solution Y Y Flask Number 2 Volume of NaSCN, mL Solution Initial [SCN 1.M Equil. [FeNCs". M Percent T Absorbance B. Determination of the Equilibrium Constant Concentration of Fe(NO,) in 0.10 M HNO, solution Concentration of NaSCN in 0.10 M HNO,...
Calculate the initial concentration of iron(III) in
solution #1, #2, #3.
Beaker (mL) Table 1. Reagent Solutions Provided by the Stockroom Solution Name Reagent [Reagent] (M) Volume (mL) Standard iron Fe(NO3)3 2.50 x 10 in 0.10 M HNO3 nitric acid HNO3 0.10 120 35 50 250 conc. SCN KSCN 0.50 30 50 dilute SCN KSCN 2.50 x 10-3 30 50 Worksheet 1 #1 5.00 #2 10.00 #3 15.00 Dilute iron (mL) [Fe**] (M) [Fe(SCN)?*] (M) %T 480 58.9 35.8 21.5...
5. In this experiment, you will prepare a standard solution for a calibration curve for the formation of FeSCN2 complex by reaction different volumes of 0.2 M Fe(NO,), and 0.002 M NaSCN. You will use 0.05M HNO, for all dilutions. Using the table, Calculate the equilibrium concentrations of FeSCN2 Vol of Fe Vol of SCN 0.1 M HNO Equilibrium concentration Fe[SCN]2' (mL) (mL.) (mL) 10.00 0.00 10.00 10.00 1.00 9.00 10.00 2.00 8.00 10.00 3.00 7.00 10.00 4.00 6.00 10.00...
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2. In part A of Experiment 34, it was assumed that all of the SCN added to the reaction mixture was converted to product (FeNCS). Which of the following best explains why that assumption was valid? A) The moles of Fe added equaled the moles of SCN- added. B) In part A, the SCN was the limiting reactant whereas in part B,...
A chemist needs to create a series of standard Cu2+ (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 10.00 mL of a 2.68 M Cu2+ (aq) stock solution to a 250.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 10.00 mL of the second solution to a 50.00 mL volumetric flask, and he adds enough water to dilute to...
A chemist needs to create a series of standard Cu- (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 20.00 mL of a 2.64 M Cup (aq) stock solution to a 500.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 25.00 mL of the second solution to a 100.0 mL volumetric flask, and he adds enough water to dilute to...
Most questions answered within 3 hours.
-
what statement accurately depicts the similarities in
requirements between payroll and human resources function
asked 1 hour ago -
Calculate the volume integral of the function T=z^2 over the
tetrahedron with corners (0,0,0), (1,0,0), (0,1,0),...
asked 3 hours ago -
I propose to you a game. You roll 2 dice. If the sum of the
numbers...
asked 4 hours ago -
Select the most likely lattice types for each of the following
salts: (a) BeF2; (b) CaO;...
asked 4 hours ago -
a
ball is thrown downward with velocity of 10m/s. calculate the final
velocity if it reaches...
asked 4 hours ago -
How many grams of ice at -15°C must be added to 705 grams of
water that...
asked 6 hours ago -
2. Balance sheet
The balance sheet provides a snapshot of the financial condition
of a company....
asked 6 hours ago -
In week 1 of the chemical equilibrium experiment, you and your
lab team will create a...
asked 7 hours ago -
Identify and describe five (5) characteristics of a good KM
measurement system. Be sure to include...
asked 7 hours ago -
What are at least five (5) workplace wellness best practices for
a successful wellness program? Explain...
asked 7 hours ago -
A pharmaceutical company is testing a new drug. Of the 110
people that received the drug,...
asked 7 hours ago -
Which of the following is NOT a mechanism for gene
regulation?
a. Phase variation in DNA....
asked 7 hours ago