obtain a 3 mL syringe that is divided into tenth of a milliliter. locate the following calibration on the syringe. place...
obtain a 3 mL syringe that is divided into tenth of a milliliter. locate the following calibration on the syringe. place a check mark in the blank next to each calibration after it has been correctly located.
calibration (mL)
0.5 mL
1.0 mL
1.2 mL
2.5 mL
2.7 mL
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obtain a 3 mL syringe that is divided into tenth of a milliliter. locate the following calibration on the syringe. place...
3 ml 2, 1 1 1 I. Insulin Syringe Calibrations 1. Obtain a U-100 insulin syringe. Locate the following calibrations...
3 ml 2, 1 1 1 I. Insulin Syringe Calibrations 1. Obtain a U-100 insulin syringe. Locate the following calibrations (uni the blank next to each calibration after it has been correctly located. check marki owing calibrations (units) on the spring and place Calibration (units) 100 2. Locate each calibration (listed in the previous question) on the illustration of the insulin syringe by placing an am on the correct calibration line and labeling it with the calibration. UNITS 100 90...
Ascorbic Acid Concentration (g/L) Volume of DCPIP in Full Syringe Used (mL) Volume of DCPIP in...
Ascorbic Acid Concentration (g/L)
Volume of DCPIP in Full Syringe Used (mL)
Volume of DCPIP in Final Syringe (mL)
Total Volume of DCPIP Used (mL)
0.0
5 mL
4.9 mL
0.1 mL
0.50
5 mL
2 mL
3 mL
1.00
5 mL
1.2 mL
3.8 mL
1.50
5 mL
3.6 mL
6.4 mL
2.00
5 mL
2.8 mL
7.2 mL
Unknown Trial 1
5 mL
2.0 mL
3.0 mL
Unknown Trial 2
5 mL
2.2 mL
2.8 mL
Unknown Trial...
Procedure 1. Obtain a power supply and two cables that have alligator clips at one end....
Procedure 1. Obtain a power supply and two cables that have alligator clips at one end. Also obtain two small pieces of insulated copper wire (approximately six inches, with a small amount of exposed wire at each end). 2. Completely Fill a 50 mL buret with 1 M sulfuric acid (to the top, not just the 0 mL mark). 3. Add 150 mL of 1 M sulfuric acid to a medium-sized beaker (250-400 mL). 4. Take a piece of insulated...
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...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask that you work in groups rather than alone. 2. Obtain directions from your laboratory instructor for discarding the solutions that you will use in'! this experiment. 3. Obtain instructions for using your spectrophotometer. 4. Obtain your unknown. Making the Measurements 1. Mark each of 7 dry 18 x 150-mm test tubes with one of a series of identification numbers running from 1 to 7....
i need help with my biology lab Length 1 km = 1,000 m 1m = .001...
i need help with my biology lab
Length 1 km = 1,000 m 1m = .001 km 1m = 100 cm 1 cm = .01 m Weight 1 kg = 1,000 1g-,001 kg 1g - 100 g 1 cg=.018 18 = 1,000 mg 1 mg = .001 g Volume 1 kL = 1,000 L 1L = .001 Ki 1L = 100 CL 1 cl = .01L 1 L = 1,000 mL 1 mL = .001 L 1 mm = .001...
i need help with #3 please! SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and...
i need help with #3 please!
SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and avoid contact with skin, eyes, and clothing • MHC) is dritating to the skin avoid contact with the skin, eyes, and clothing Diethyl ether, usually referred to simply as "ether", is volatile and flammable. Keep a safe distance from hot electrical devices WASTE DISPOSAL *** A itrate is the liquid that passed through the Hirsch funnel, ending up in the bottom of the sidearm...
Beer’s Law Objective : We will explore an application of absorption spectroscopy using calibration curves and...
Beer’s Law Objective : We will explore an application of absorption spectroscopy using calibration curves and Beer’s Law. Use the “LAB : HOW TO…” link from the class website if you need help with how to use balance, Bunsen burner… and such. Introduction: You may write this information in your lab notebook for your own reference. It can’t be cut and pasted. Different solutions have different spectral properties. In this portion of the experiment those properties will be utilized to...
Experiment # Starting Substrate Concentration Actual Substrate Concentration Substrate Added (ml) Buffer Added (ml) 1.5 mm...
Experiment # Starting Substrate Concentration Actual Substrate Concentration Substrate Added (ml) Buffer Added (ml) 1.5 mm 1.5 1.0 mm Nm 1.0 0.5 mm 0.50 0.250 mm 0.250 0.125 mm 0.120 1.38 0.060 MM 0.060 1.44 0.030 mm 0.030 1.47 0.015 mm 0.015 1.485 *Actual substrate concentration is calculated by taking the starting substrate concentration into the final volume of each reaction after enzyme has been added. Note that the total volume for each reaction prior to the addition of enzyme...
Can you answer question 4 & 5? The experiment and porcedure is posted below Question 4...
Can
you answer question 4 & 5? The experiment and porcedure is
posted below
Question 4 & 5
CHM3120C Analytical Chemistry Lab Lab 7. Spectrophotometric Determination of Iron in Mohr's Salt with o-Phenanthroline Required Reagents and Supplies: 50 mL of 0.0005M -0.0006 M of Mohr's solution (unknown), 10 g of Hydroxylamine hydrochloride (NH2OH, HCI), 500 mL of o-phenanthroline solution (contains 0.5 g of o-phenanthroline monohydrate), 83 g of sodium acetate (NaOAc. 3H20) in 500 mL of water (for 1.2 M...
3 ml 2, 1 1 1 I. Insulin Syringe Calibrations 1. Obtain a U-100 insulin syringe. Locate the following calibrations (uni the blank next to each calibration after it has been correctly located. check marki owing calibrations (units) on the spring and place Calibration (units) 100 2. Locate each calibration (listed in the previous question) on the illustration of the insulin syringe by placing an am on the correct calibration line and labeling it with the calibration. UNITS 100 90...
Ascorbic Acid Concentration (g/L)
Volume of DCPIP in Full Syringe Used (mL)
Volume of DCPIP in Final Syringe (mL)
Total Volume of DCPIP Used (mL)
0.0
5 mL
4.9 mL
0.1 mL
0.50
5 mL
2 mL
3 mL
1.00
5 mL
1.2 mL
3.8 mL
1.50
5 mL
3.6 mL
6.4 mL
2.00
5 mL
2.8 mL
7.2 mL
Unknown Trial 1
5 mL
2.0 mL
3.0 mL
Unknown Trial 2
5 mL
2.2 mL
2.8 mL
Unknown Trial...
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...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask that you work in groups rather than alone. 2. Obtain directions from your laboratory instructor for discarding the solutions that you will use in'! this experiment. 3. Obtain instructions for using your spectrophotometer. 4. Obtain your unknown. Making the Measurements 1. Mark each of 7 dry 18 x 150-mm test tubes with one of a series of identification numbers running from 1 to 7....
i need help with my biology lab
Length 1 km = 1,000 m 1m = .001 km 1m = 100 cm 1 cm = .01 m Weight 1 kg = 1,000 1g-,001 kg 1g - 100 g 1 cg=.018 18 = 1,000 mg 1 mg = .001 g Volume 1 kL = 1,000 L 1L = .001 Ki 1L = 100 CL 1 cl = .01L 1 L = 1,000 mL 1 mL = .001 L 1 mm = .001...
i need help with #3 please!
SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and avoid contact with skin, eyes, and clothing • MHC) is dritating to the skin avoid contact with the skin, eyes, and clothing Diethyl ether, usually referred to simply as "ether", is volatile and flammable. Keep a safe distance from hot electrical devices WASTE DISPOSAL *** A itrate is the liquid that passed through the Hirsch funnel, ending up in the bottom of the sidearm...
Experiment # Starting Substrate Concentration Actual Substrate Concentration Substrate Added (ml) Buffer Added (ml) 1.5 mm 1.5 1.0 mm Nm 1.0 0.5 mm 0.50 0.250 mm 0.250 0.125 mm 0.120 1.38 0.060 MM 0.060 1.44 0.030 mm 0.030 1.47 0.015 mm 0.015 1.485 *Actual substrate concentration is calculated by taking the starting substrate concentration into the final volume of each reaction after enzyme has been added. Note that the total volume for each reaction prior to the addition of enzyme...
Can
you answer question 4 & 5? The experiment and porcedure is
posted below
Question 4 & 5
CHM3120C Analytical Chemistry Lab Lab 7. Spectrophotometric Determination of Iron in Mohr's Salt with o-Phenanthroline Required Reagents and Supplies: 50 mL of 0.0005M -0.0006 M of Mohr's solution (unknown), 10 g of Hydroxylamine hydrochloride (NH2OH, HCI), 500 mL of o-phenanthroline solution (contains 0.5 g of o-phenanthroline monohydrate), 83 g of sodium acetate (NaOAc. 3H20) in 500 mL of water (for 1.2 M...
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