10. From a 3.01 mg/mL stock solution of ONPG (MW 301.25), prepare 1000 ML of a 1.0 mM ONPG solution. How much stock...
How would you prepare a 105 mL solution of 2.2% HEPES from a 250 mM stock of the buffer? (MW of HEPES = 238.30) a) First, convert 250 mM HEPES to a percent concentration (%): b) Next, determine the dilution of your percent stock solution of HEPES (calculated in "a" above) to a final concentration of 2.2% with a final volume of 105 ml: c) Mix components rightarrow ___ ml of H_2O+ ___ ml of 250 mM HEPES
For making stock solution of the antimalarial drug, Artemisinin, how much of Artemisinin (in mg) and DMSO (in μL) is needed for 35 mM and a total preferred volume of 250 μL? Please show steps. Note: The max solubility of DMSO is 10 mg/mL and the max concentration of Artemisinin (based off 282.33 g/mol as its molecular weight) is 35 mM.
18. Diluting 1.0 mL of a 1.0 M solution to 1000 mL results in a solution that is 0.001 M. Repeating this 1000-fold dilution process five more times results in a concentration of A. 1.0 x 10-8 M B. 5.0 x 10-'M C. 1.0 x 10-18 M D. 1.0 x 10-12 M E. 2.0 x 10+M 19. Which of the following statements is true regarding electrolytes and nonelectrolytes? A. Molten ionic compounds are usually considered to be weak electrolytes. B....
please show work so: 1 ml stock 10 ml final -0.5 mL of stock -5 ml final volume While I have used 1:10 as a standard the same rules apply for all dilution factors. Try these problems: x 0.5 X0.5 1. You need to make a 1:25 dilution factor. If you final volume is 25 mL this means that you need_ _mL of stock and mL of solvent to make your final volume of 25 mL. 2. If you needed...
(1) How much amount (in milligrams) of riboflavin (MW=376.4 g/mol) you will need to prepare a 6.4x10-4M stock solution in 10 ml volume? (2) How much volume of the above stock solution will you need to prepare the riboflavin solutions of following concentrations: a. 0.059 mM in 25 ml b. 14 uM in 25 ml
1. How would you prepare 125 ml of a 10% (v/v) solution of acetic acid in H2O? 2. How would you prepare 60 ml of a 5% (W/V) NaCl solution in H20? 3. How would you prepare 3 ml of 82% solution A and 18% solution B? 4. 5 ml of a 2.0 mg/ml protein solution contains mg protein. a. If 1.0 ug/ml of pigment X shows an absorbance of 0.059 at 370nm, then what is the concentration of a...
To prepare 100 ml of a 50.0 mM solution of KCl from a stock solution that is 1.00 M, use: ___________ ml of 1.00 M KCl and _____________ ml of distilled water The answer: (5.00 ml of 1.00 M KCl and 95.0 ml of water.) But how did they get this answer?
pharmacy calculations A drug is supplied as a 30 mg/ml solution in a 50 mL vial. You need to prepare 10 mL of a 20 mg/ml solution. How much concentrate will be needed for the preparation? A prescriber has ordered 200 ml of an iodine topical solution. The pharmacy's recipe book includes a formula for preparing 800 mL of the solution. Determine how much of sodium iodide will be needed to prepare 200 mL of the solution Current Formula Jodine...
You want to dilute a 6.00 M HCl solution to 3.01 M. You need 500. mL of the diluted solution. How much stock solution (6.00 M HCl) must you use? Give your answer in mL.
A 4.0 mg/dl standard solution is needed. To prepare 100 ml of the working standard, how much stock standard of a 1-mg/ml solution is needed? I need this one using the specific information so I understand the V1C1 = V2C2 Please explain in detail how to answer the Question. Thank you