Homework Answers
1st one is concentration in milli Molar
and 2nd one is concentration in Molar terms
so to change milli molar to molar
divide it by 1000 you will get it in M
.199
.215
.305
.365
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Table 5. Drink mix concentrations and absorbances for constructing a standard curve Concentration Concentration Absorbance (mm)...
Table 3: Absorbance for varying concentrations of Co(NO3)2 at max wavelength Sample Number Concentration (mM) Absorbance...
Table 3: Absorbance for varying
concentrations of Co(NO3)2 at max
wavelength
Sample Number
Concentration (mM)
Absorbance
0
0 mM
0.00
1
30 mM
0.13
2
60 mM
0.27
3
90mM
0.40
4
120mM
0.53
5
150 mM
0.67
Answer the following questions based on your calibration curve
Calculate the
l value from the slope of your graph
To determine the phosphate concentration in a water sample, the following standard curve was produced. If the absorbance of the water sample is 0.030, what is its phosphate concentration? Standard Cu...
To determine the phosphate concentration in a water sample, the following standard curve was produced. If the absorbance of the water sample is 0.030, what is its phosphate concentration? Standard Curve of Known Phosphate Concentrations (M) 0.3 y 1254.6x+0.0189 0.9889 025 0.2 015 0.1 0.05 500L-0S 1000-04 2.500-04 CONCENIRATION IM A. 2.6 x10-5 M VB. 8.8 x 10-6 M C. 3.1 x 104M D. 1.6 x 10-7 M
To determine the phosphate concentration in a water sample, the following standard...
A Bradford assay was carried out to measure protein concentration. The absorbance of five standard samples...
A Bradford assay was carried out to measure protein concentration. The absorbance of five standard samples and two unknown samples are listed in the table below. The Bradford reaction mixture (1 ml) was prepared as follows: 100 μl sample A or sample B + 200 μl Bradford reagent + 700μl 0.9% NaCl solution sample ID concentration (mM) absorbance (O.D.) std 1 100 0.78 std 2 50 0.4 std 3 25 0.18 std 4 12.5 0.08 std 5 0 0 ...
A Bill' external standard curve built from absorbance signal vs. analyte concentration (in uM) has the...
A Bill' external standard curve built from absorbance signal vs. analyte concentration (in uM) has the following calibration curve equation y = 0.0500 x + 0.003. If a sample produced an absorbance of 0.300, what was the Bi concentration in the solution in the cuvette? A. 0.015 mM B. 6.00 mm c. 5.94 mm D. 0.600 mm Reset Selection estion 4 of 5 2 Points If the concentration of Bi in a diluted sample (after dilution of the original sample)...
please answer 1 and 2 table 4 protein concentrations 1. Determine the protein concentrations for your...
please answer 1 and 2
table
4
protein
concentrations
1. Determine the protein concentrations for your positive and negative control and your test sample (Table 4) using the protein standard curve you constructed. Include Table 4 and your protein concentrations in your response. Do these results seem accurate to you? Did they differ from what you expected for the food item you brought into class? 2. What is the R2 value of your known protein concentrations plotted against their absorbency?...
Operating Wavelength : 458.7 nm Preparation of Standard Calibration Curve of [FeSCN]2+ Sample Number Absorbance Final...
Operating Wavelength : 458.7 nm Preparation of Standard Calibration Curve of [FeSCN]2+ Sample Number Absorbance Final Concentration of [FeSCN]2+(M) A 0.157 4.0E-5 B 0.272 8.0E-5 C 0.422 1.2E-4 D 0.615 1.6E-4 E 0.722 2.0E-4 Determination of [FeSCN]2+ in Equilibrium Mixtures Sample Number Absorbance 1 0.240 2 0.334 3 0.436 4 0.544 Determination of [FeSCN]2+ in equilibrium mixtures For Sample #1: Enter the initial concentration of Fe3+ Calculate the equilibrium concentration of Fe3+ Enter the initial concentration of HSCN Calculate the...
5. The following data were obtained when Bio 106 students created solutions of the following concentrations...
5. The following data were obtained when Bio 106 students created solutions of the following concentrations (column 1), These students then placed three different samples of each concentration in a spectrophotometer and measured the absorbance. The following data table was created by these students. Create a standard curve from the data in the following table. Be sure to calculate the average absorbance for each concentration (round to two decimal places). After you have created the table, answer the following questions....
Enzyme Kinetics Lab Guide Table 2: Absorbance values per minute for varied substrate concentrations Time (min)...
Enzyme Kinetics Lab Guide Table 2: Absorbance values per minute for varied substrate concentrations Time (min) Tube A (0mM) Tube B (2.0mM) Tube C (5.0mM) Tube D (8.0mM) Tube E (12.0mM) Tube F (20.0mM) 0 0 0.012 0.066 0.066 0.076 0.191 1 0.011 0.045 0.128 0.128 0.164 0.200 2 0.017 0.096 0.190 0.190 0.219 0.241 3 0.009 0.122 0.234 0.234 0.294 0.313 Table 3. Absorbance values versus substrate concentration at a constant time (from Table 2) Concentration (mM) 0 mM...
2. A linear standard curve of KMnO is prepared from a set of standard solutions by...
2. A linear standard curve of KMnO is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use Logger Pro (as described in the Data Analysis for this experiment), or Google Sheets/Excel, to plot this standard curve using the data in Table 1. Help with spreadsheets [PDF] Table 1: Data for the standard curve of KMnO4 Absorbance Concentration (M) 0.330 6.00 x 10-4 0.264 4.80 x 10-4 0.198 3.60 x 10-4 0.132 2.40 x 10-4...
In the standard curve for nitrophenol generated for use in this experiment, what is reported on...
In the standard curve for nitrophenol generated for use in this experiment, what is reported on the x-axis? nitrophenol concentration absorbance at 410 nm initial velocity time QUESTION 4 In the standard curve for nitrophenol generated for use in this experiment, what is reported on the y-axis? initial velocity time nitrophenol concentration absorbance at 410 nm QUESTION 5 The initial velocity of an enzyme catalyzed reaction is determined by graphically determining 1/2 Vmax calculating the amount of product formed over...
Table 3: Absorbance for varying
concentrations of Co(NO3)2 at max
wavelength
Sample Number
Concentration (mM)
Absorbance
0
0 mM
0.00
1
30 mM
0.13
2
60 mM
0.27
3
90mM
0.40
4
120mM
0.53
5
150 mM
0.67
Answer the following questions based on your calibration curve
Calculate the
l value from the slope of your graph
To determine the phosphate concentration in a water sample, the following standard curve was produced. If the absorbance of the water sample is 0.030, what is its phosphate concentration? Standard Curve of Known Phosphate Concentrations (M) 0.3 y 1254.6x+0.0189 0.9889 025 0.2 015 0.1 0.05 500L-0S 1000-04 2.500-04 CONCENIRATION IM A. 2.6 x10-5 M VB. 8.8 x 10-6 M C. 3.1 x 104M D. 1.6 x 10-7 M
To determine the phosphate concentration in a water sample, the following standard...
A Bill' external standard curve built from absorbance signal vs. analyte concentration (in uM) has the following calibration curve equation y = 0.0500 x + 0.003. If a sample produced an absorbance of 0.300, what was the Bi concentration in the solution in the cuvette? A. 0.015 mM B. 6.00 mm c. 5.94 mm D. 0.600 mm Reset Selection estion 4 of 5 2 Points If the concentration of Bi in a diluted sample (after dilution of the original sample)...
please answer 1 and 2
table
4
protein
concentrations
1. Determine the protein concentrations for your positive and negative control and your test sample (Table 4) using the protein standard curve you constructed. Include Table 4 and your protein concentrations in your response. Do these results seem accurate to you? Did they differ from what you expected for the food item you brought into class? 2. What is the R2 value of your known protein concentrations plotted against their absorbency?...
5. The following data were obtained when Bio 106 students created solutions of the following concentrations (column 1), These students then placed three different samples of each concentration in a spectrophotometer and measured the absorbance. The following data table was created by these students. Create a standard curve from the data in the following table. Be sure to calculate the average absorbance for each concentration (round to two decimal places). After you have created the table, answer the following questions....
2. A linear standard curve of KMnO is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use Logger Pro (as described in the Data Analysis for this experiment), or Google Sheets/Excel, to plot this standard curve using the data in Table 1. Help with spreadsheets [PDF] Table 1: Data for the standard curve of KMnO4 Absorbance Concentration (M) 0.330 6.00 x 10-4 0.264 4.80 x 10-4 0.198 3.60 x 10-4 0.132 2.40 x 10-4...
In the standard curve for nitrophenol generated for use in this experiment, what is reported on the x-axis? nitrophenol concentration absorbance at 410 nm initial velocity time QUESTION 4 In the standard curve for nitrophenol generated for use in this experiment, what is reported on the y-axis? initial velocity time nitrophenol concentration absorbance at 410 nm QUESTION 5 The initial velocity of an enzyme catalyzed reaction is determined by graphically determining 1/2 Vmax calculating the amount of product formed over...
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