Assume that you have a stock solution of epinephrine at a concentration of 3 mg/mL. Knowing...
Assume that you have a stock solution of epinephrine at a concentration of 3 mg/mL. Knowing that the pipette you will use delivers 20 drops/mL, calculate the number of drops of the stock solution that must be added to a smooth muscle bath containing 27 mL of Locke’s solution so that the final concentration of epinephrine in the muscle bath will be 173 µg/mL.
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Assume that you have a stock solution of epinephrine at a
concentration of 3 mg/mL. Knowing...
ncetoi paper) 1. BSA stock solution A has a concentration of 3.50 mg/mL. 1.00 mL of...
ncetoi paper) 1. BSA stock solution A has a concentration of 3.50 mg/mL. 1.00 mL of stock solution A is diluted to a final volume of 5.00 mL to prepare solution B. 1.00 mL of solution B is diluted to a final volume of 5.00 mL to prepare solution C. 1.00 mL of solution C is diluted to a final volume of 10.00 mL to prepare solution D. Calculate the concentrations of solutions E, C, and D. Show your work....
1) A stock solution has a concentration of 100 µg/mL. If 20 µL of stock is...
1) A stock solution has a concentration of 100 µg/mL. If 20 µL of stock is added to a beaker. What is the mass of the dye in µg? 2) If the absorbance of the same dye (after diluted with water to 3 mL) is 0.3 AU, what is A/µg of the dye used?
You are given a protein solution with a concentration of 0.15 mg/ml. We need 0.1 µg...
You are given a protein solution with a concentration of 0.15 mg/ml. We need 0.1 µg for an experiment. What volume of the protein solution do we need?
Stock glucose (C6H12O6) solution with concentration 50.0 mmol/L. 0.30 mL of such stock solution and added...
Stock glucose (C6H12O6) solution with concentration 50.0 mmol/L. 0.30 mL of such stock solution and added water to each vial to complete 10.0 ml. Final glucose concentrations in mg/dL?
You have5 mL ofa concentrated stock solution of the vitamin biotin whose concentration is 10 mg/mL....
You have5 mL ofa concentrated stock solution of the vitamin biotin whose concentration is 10 mg/mL. You will be making 10 mL of nutrient medium and want the final biotin concentration of the medium to be 50 μg/mL. How will you formulate this nutrient medium? HINT: Don’t forget to convert your biotin concentrations to the same units, and use a multi-step dilution.
You have a stock solution that contains 24 mg/ml of protein. You want to make a...
You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml. You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 1 Std 2 Std 3 Std 4 concentration (mg/ml) 12 6 3...
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein....
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 4 Std 1 12 Std 2 6 Std...
You have a stock of streptomycin (antibiotic) with a concentration of 200 mg/mL. You add water...
You have a stock of streptomycin (antibiotic) with a concentration of 200 mg/mL. You add water until the concentration of streptomycin is 8 mg/mL. What dilution have you performed? (Hint: Think of how many times less concentrated your final concentration is compared to your initial. Using C1V1=C2V2) This is all the information provided in the question.
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...
You have a stock solution of 25 mg/mL igG and want to make 2000 microliters of...
You have a stock solution of 25 mg/mL igG and want to make 2000 microliters of protein standard at a concentration of 1.5 mg/mL. What volume of igG stock would you need?
ncetoi paper) 1. BSA stock solution A has a concentration of 3.50 mg/mL. 1.00 mL of stock solution A is diluted to a final volume of 5.00 mL to prepare solution B. 1.00 mL of solution B is diluted to a final volume of 5.00 mL to prepare solution C. 1.00 mL of solution C is diluted to a final volume of 10.00 mL to prepare solution D. Calculate the concentrations of solutions E, C, and D. Show your work....
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 4 Std 1 12 Std 2 6 Std...
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...
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