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Methods A. Setting up your tubes: Label (1, 2, 3, 4, 5, and 6) the six...
Measurement and Accuracy Procedure Obtain 5 large test tubes (all the same size), a test tube...
Measurement and Accuracy Procedure Obtain 5 large test tubes (all the same size), a test tube rack, 3 beakers of colored water A-C, and 3 graduated cylinders. With a Sharpie, label the tubes 1-5 Measure 25 mL of solution from beaker A (red) using a clean graduated cylinder. Pour into tube 1. Measure 28 mL of solution from beaker B (yellow) using a clean graduated cylinder. Pour into tube 3. Measure 22 mL of solution from beaker C (blue) using...
Calculate the initial concentration of Fe3+ in test tubes 1-4. (you will need to take the...
Calculate the initial concentration of Fe3+ in test tubes 1-4. (you will need to take the dilution in to account) Calculate the initial concentration of SCN-in each of test tubes 1-4. (you will need to take the dilution in to account) 2. Label four 20 x 150 mm test tubes 1-4. Pour about 30 mL of 0.0020 M Fe(NO3)3 into a clean, dry 100-ml beaker. Pipet 5.0 mL of this solution into each of the four labeled test tubes. Use...
please answer questions 1 through 6 with the information provided. Enzyme Specificity Are Sucrase and Lactase...
please answer questions 1 through 6 with the
information provided.
Enzyme Specificity Are Sucrase and Lactase specific to Sucrose and Lactose? I: Experimental Procedure 1. Add 0.3 g of sucrose to three different test tubes. Make sure to remember to label them 1 to 3. 2. Add 5 mL of Dl water to test tube number 1. Add 5 mL of sucrase to test tube 2. Add 5 ml of lactase to test tube 3. 3. Add 0.3 g of...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your work. Procedure A. Determination of B...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your
work.
Procedure A. Determination of B for Beer's Law 1. Using a buret, add 4.00 mL of 0.0025 M Fe(NO3)s (which is in 0.1 M HNOs) to a 100- mL volumetric flask. Add enough deionized water to bring the total volume to the mark on the neck of the flask. Stopper and shake the flask. Label this flask “Diluted Fe.” spectrophotometer tubes (cuvettes), they are too small to use at...
1. Calculate concentrations for each test tubes in mg/mL. 20mL of stock Brilliant Blue solution is added to test tube #1...
1. Calculate concentrations for each test tubes in mg/mL. 20mL of stock Brilliant Blue solution is added to test tube #1. The concentration of this stock solution is 0.025g/L. a) Test tube #2, 10mL distilled water + 10 mL of stock Brilliant Blue solution from test tube #1. b) Test tube #3, 10mL of distilled water + 10mL of solution from test tube 2. c) Test tube #4, 10mL of distilled water + 10mL of solution from test tube 3....
Can someone help me with the color reactions, positive and negative control, and the 6 questions?...
Can someone help me with the color reactions, positive
and negative control, and the 6 questions?
Sudan IV Test for Lipid 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each tube, add the materials listed in Table 3. 3. Add five drops of water to tube 1 and five drops of Sudan IV to each of the remaining tubes. Mix...
4. Suppose you set up a row of 10 tubes. A volume of 0.4 ml of...
4. Suppose you set up a row of 10 tubes. A volume of 0.4 ml of saline is pipetted into tube #1. while 0.6 ml of saline is pipetted into tubes #2-10. To tube #1,0.4 ml of patient serum is added. A volume of 0.2 ml is serially transferred from one tube to the next, discarding 0.2 ml from tube #10. What is the dilution of tube #4? 5. Consider the following serial dilution system, consisting of 10 tubes. A...
Procedure: 1. 10 Test tubes were labelled (0C,0E,15C,15E,30C,30E,45C,45E,60C, and 60E.) 2. 2 mL cathecol-buffer at pH...
Procedure:
1. 10 Test tubes were labelled
(0C,0E,15C,15E,30C,30E,45C,45E,60C, and 60E.)
2. 2 mL cathecol-buffer at pH 6 was added into each test
tubes.
3. 3.5 mL of water was added into all of the C tubes
(0C,15C,30C,45C, and 60C.)
4. 3 mL of water was added into the remaining tubes.
5.The two tubes were put into an ice bath.
6. 0.5 mL of enzyme polyphenoloxidase was added into tube E when
the mixture had reached certain T (O°C)
7.The transmittance...
Show Calculation of % ethanol in each tube below. A. Preparation of Standards (4.5pt) # %(v/v)...
Show Calculation of % ethanol in each tube below.
A. Preparation of Standards (4.5pt) # %(v/v) Tube Ethanol Observations after heating Oil. turned light orange. LOL turned light orange 2.04. turned burnt orange 3.0% turned dark Yellow green 4.01. turned light green 5.01. turned dark blue igreen 6.07 turned light blue 7.01 turned light blue 8.07. turned light blue Show calculation of %(v/v) ethanol in each tube below (2.25pt): PROCEDURE: NOTES: Follow all standard safety precautions. Discard all waste into...
I am needing help finding the answers the first. I am just having a bad brain...
I
am needing help finding the answers the first. I am just having a
bad brain fart and cant figure it out to save my life.
please show how you calculated it and found what you
did.
Thanks!!
Data and Calculations Step 3 Initial concentrations [Pb2+ ] initial = Moles of Pb2+ ion = Moles of Clion = Step 4 Is there any precipitate? Record the total volume of HCI added until Total volume of HCI added: LOML the precipitate...
Calculate the initial concentration of Fe3+ in test tubes 1-4. (you will need to take the dilution in to account) Calculate the initial concentration of SCN-in each of test tubes 1-4. (you will need to take the dilution in to account) 2. Label four 20 x 150 mm test tubes 1-4. Pour about 30 mL of 0.0020 M Fe(NO3)3 into a clean, dry 100-ml beaker. Pipet 5.0 mL of this solution into each of the four labeled test tubes. Use...
please answer questions 1 through 6 with the
information provided.
Enzyme Specificity Are Sucrase and Lactase specific to Sucrose and Lactose? I: Experimental Procedure 1. Add 0.3 g of sucrose to three different test tubes. Make sure to remember to label them 1 to 3. 2. Add 5 mL of Dl water to test tube number 1. Add 5 mL of sucrase to test tube 2. Add 5 ml of lactase to test tube 3. 3. Add 0.3 g of...
Calculate initial concentration of Fe+3 for tubes 1-3. Show your
work.
Procedure A. Determination of B for Beer's Law 1. Using a buret, add 4.00 mL of 0.0025 M Fe(NO3)s (which is in 0.1 M HNOs) to a 100- mL volumetric flask. Add enough deionized water to bring the total volume to the mark on the neck of the flask. Stopper and shake the flask. Label this flask “Diluted Fe.” spectrophotometer tubes (cuvettes), they are too small to use at...
Can someone help me with the color reactions, positive
and negative control, and the 6 questions?
Sudan IV Test for Lipid 1. Obtain five test tubes and number them 1-5. Your instructor may ask you to test some additional materials. If so, include additional numbered test tubes. 2. To each tube, add the materials listed in Table 3. 3. Add five drops of water to tube 1 and five drops of Sudan IV to each of the remaining tubes. Mix...
4. Suppose you set up a row of 10 tubes. A volume of 0.4 ml of saline is pipetted into tube #1. while 0.6 ml of saline is pipetted into tubes #2-10. To tube #1,0.4 ml of patient serum is added. A volume of 0.2 ml is serially transferred from one tube to the next, discarding 0.2 ml from tube #10. What is the dilution of tube #4? 5. Consider the following serial dilution system, consisting of 10 tubes. A...
Procedure:
1. 10 Test tubes were labelled
(0C,0E,15C,15E,30C,30E,45C,45E,60C, and 60E.)
2. 2 mL cathecol-buffer at pH 6 was added into each test
tubes.
3. 3.5 mL of water was added into all of the C tubes
(0C,15C,30C,45C, and 60C.)
4. 3 mL of water was added into the remaining tubes.
5.The two tubes were put into an ice bath.
6. 0.5 mL of enzyme polyphenoloxidase was added into tube E when
the mixture had reached certain T (O°C)
7.The transmittance...
Show Calculation of % ethanol in each tube below.
A. Preparation of Standards (4.5pt) # %(v/v) Tube Ethanol Observations after heating Oil. turned light orange. LOL turned light orange 2.04. turned burnt orange 3.0% turned dark Yellow green 4.01. turned light green 5.01. turned dark blue igreen 6.07 turned light blue 7.01 turned light blue 8.07. turned light blue Show calculation of %(v/v) ethanol in each tube below (2.25pt): PROCEDURE: NOTES: Follow all standard safety precautions. Discard all waste into...
I
am needing help finding the answers the first. I am just having a
bad brain fart and cant figure it out to save my life.
please show how you calculated it and found what you
did.
Thanks!!
Data and Calculations Step 3 Initial concentrations [Pb2+ ] initial = Moles of Pb2+ ion = Moles of Clion = Step 4 Is there any precipitate? Record the total volume of HCI added until Total volume of HCI added: LOML the precipitate...
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