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The following is the result from the determination of the density of a liquid using the...
284 Report Sheet . Determination of the Dissociation Constant of a Weak Acid 2.96 2.99 4.37...
284 Report Sheet . Determination of the Dissociation Constant of a Weak Acid 2.96 2.99 4.37 4.55 C. Determination of pKof Unknown Acid First determination Second determination ml NaOH pH ml NaOH pH 0.00 mL 0.00 mL 1.00 mL 2.00 mL 2.00 mL 4.00 mL 3.64 3.00 mL 6.00 ml 3.97 4.00 mL 7.00 ml 4.17 5.00 ml 8.00 mL 6.00 mL 9.00 ml. 7.00 mL 9.50 mL 4.61 8.00 ml 10.00 ml 4.71 9.00 mL 10.50 ml 4.85 10.00...
For Part A of the Equilibrium experiment, you will be preparing several standard solutions for the...
For Part A of the Equilibrium experiment, you will be preparing several standard solutions for the Beer's Law plot Using the information given in the Worksheet for Equilibrium Lab , answer the following questions. (a) What is the initial Fe3+ concentration of all of the solutions? 1.00 xM (b) What is the initial SCN1-concentrations of Solutions #1A - #5A? Solution #1A 1#1A | 1.00 Solution #2A 1.50 Solution #3A 2.00 Solution #4A2.50 Solution #41 2.50 M Solution #54 3,00 xM...
I'm a might stuck on some calculations for my lab report on Spectrophotometric Determination of Protein....
I'm a might stuck on some calculations for my lab report on Spectrophotometric Determination of Protein. I'm looking to calculate the concentration of the first standard. Sample Vol. of Protein Std Solution Vol. of BCA reagent Volumeof DI water Total Vol. Vol of Unknown Blank 0 3.00 1.000 4.00 0 Standard 1 0.100 3.00 0.900 4.00 0 Standard 2 0.200 3.00 0.800 4.00 0 Standard 3 0.300 3.00 0.700 4.00 0 Standard 4 0.400 3.00 0.600 4.00 0 Standard 5...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
QUESTION 4 Use the sample results below to complete the Report Form Laboratory Temperature 22.0C Concentration...
QUESTION 4 Use the sample results below to complete the Report Form Laboratory Temperature 22.0C Concentration of Stock Fe(NO) soin. 0.00200 M Concentration of Stock KSCN soin. 0.00200 M Trial Fe(NO3h (mL) KSCN (ml) H2O (ml) Total Volume (ml) % Transmitance 1 5.00 5.00 0.000 10.0 28.0 2 5.00 4.00 1.00 10.0 32.8 3 5.00 3.00 2.00 10.0 41.2 4 5.00 3.00 10.0 51.0 200 Calculate the equilibrium constant (Kec) of each trial as well as the average Keq (Ave....
Lab Report: Determination of Kc for a Complex Ion Formation tube 2.00e-3 Fe3+ (mL) 2.00E-3M SCN-...
Lab Report: Determination of Kc for a Complex Ion Formation
tube
2.00e-3 Fe3+ (mL)
2.00E-3M SCN- (mL)
water (mL)
initial conc. Fe3+
initial conc. SCN-
1
5.00
5.00
0
1.00e-3M
1.00E-3M
2
5.00
4.00
1.00
1.00E-3M
8.00E-3M
3
5.00
3.00
2.00
1.00E-3,
6.00E-3M
4
5.00
2.00
3.00
1.00E-3M
4.00E-3M
5
5.00
1.00
4.00
1.00E-3M
2.00E-3M
10ml of 0.200M Fe3+, 2.00ml of 0.00200M SCN-, AND 8.00ml of
water results in an eq. [FeSCN2+] IN Standard
Soln.:2.00E-4M
Could you please explain how...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
2. Calculate the concentrations of solutions 1-7 from the procedure step 2. Show one sample calculation....
2. Calculate the concentrations of solutions 1-7 from the procedure step 2. Show one sample calculation. Test Tube # Concentration (M) 2. Prepare one solution at a time by pipeting the following volumes into a small beaker for mixing, then transfer the solution to the appropriate test tube. Test Tube No. 0.150 M COCI, (m.) 2.00 4.00 5.00 6.00 7.00 8.00 10.00 Distilled H,O (mL) 8.00 6.00 5.00 4.00 3.00 2.00 0.00
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...
284 Report Sheet . Determination of the Dissociation Constant of a Weak Acid 2.96 2.99 4.37 4.55 C. Determination of pKof Unknown Acid First determination Second determination ml NaOH pH ml NaOH pH 0.00 mL 0.00 mL 1.00 mL 2.00 mL 2.00 mL 4.00 mL 3.64 3.00 mL 6.00 ml 3.97 4.00 mL 7.00 ml 4.17 5.00 ml 8.00 mL 6.00 mL 9.00 ml. 7.00 mL 9.50 mL 4.61 8.00 ml 10.00 ml 4.71 9.00 mL 10.50 ml 4.85 10.00...
For Part A of the Equilibrium experiment, you will be preparing several standard solutions for the Beer's Law plot Using the information given in the Worksheet for Equilibrium Lab , answer the following questions. (a) What is the initial Fe3+ concentration of all of the solutions? 1.00 xM (b) What is the initial SCN1-concentrations of Solutions #1A - #5A? Solution #1A 1#1A | 1.00 Solution #2A 1.50 Solution #3A 2.00 Solution #4A2.50 Solution #41 2.50 M Solution #54 3,00 xM...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
QUESTION 4 Use the sample results below to complete the Report Form Laboratory Temperature 22.0C Concentration of Stock Fe(NO) soin. 0.00200 M Concentration of Stock KSCN soin. 0.00200 M Trial Fe(NO3h (mL) KSCN (ml) H2O (ml) Total Volume (ml) % Transmitance 1 5.00 5.00 0.000 10.0 28.0 2 5.00 4.00 1.00 10.0 32.8 3 5.00 3.00 2.00 10.0 41.2 4 5.00 3.00 10.0 51.0 200 Calculate the equilibrium constant (Kec) of each trial as well as the average Keq (Ave....
Lab Report: Determination of Kc for a Complex Ion Formation
tube
2.00e-3 Fe3+ (mL)
2.00E-3M SCN- (mL)
water (mL)
initial conc. Fe3+
initial conc. SCN-
1
5.00
5.00
0
1.00e-3M
1.00E-3M
2
5.00
4.00
1.00
1.00E-3M
8.00E-3M
3
5.00
3.00
2.00
1.00E-3,
6.00E-3M
4
5.00
2.00
3.00
1.00E-3M
4.00E-3M
5
5.00
1.00
4.00
1.00E-3M
2.00E-3M
10ml of 0.200M Fe3+, 2.00ml of 0.00200M SCN-, AND 8.00ml of
water results in an eq. [FeSCN2+] IN Standard
Soln.:2.00E-4M
Could you please explain how...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
2. Calculate the concentrations of solutions 1-7 from the procedure step 2. Show one sample calculation. Test Tube # Concentration (M) 2. Prepare one solution at a time by pipeting the following volumes into a small beaker for mixing, then transfer the solution to the appropriate test tube. Test Tube No. 0.150 M COCI, (m.) 2.00 4.00 5.00 6.00 7.00 8.00 10.00 Distilled H,O (mL) 8.00 6.00 5.00 4.00 3.00 2.00 0.00
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...
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