You are making ampicillin plates. Before pouring the plates, you add 2 mL of 10 mg/mL to the 400-ml bottle of LB agar that you use to pour the plates. What is the final concentration of the ampicillin in the plates? Express your answer as µg/mL. Show your work.

can you help w/ 1b?

3. An important conversion factor that you must memorize and use in this course is: 1 mg/L = 8.34 lb/million gallons a) Start with a value of 1 mg/L and use dimensional analysis to prove that this conversion factor is correct: Show that 1 mg/L = 8.34 lb/million gal. b) A wastewater treatment plant adds 5 mg/L of a commercial polymer to raw water to enhance removal of colloidal particles during settling. If the flow rate of water into the facility is 100 MGD, how many pounds of polymer are needed each year? (hint, use the required conversion factor 1 mg/L = 8.34 lb/million gallon to perform the calculation)

A student prepares a 3.2M aqueous solution of benzoic acid (C,H,CO,H). Calculate the fraction of benzoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. | % x10

A A student prepares a 0.52 M aqueous solution of 4-chlorobutanoic acid (C₂H CICO₂H). Calculate the fraction of 4- chlorobutanoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. % ☐x X G

Rubbing alcohol is sold as 70.0% V/V solution of isopropyl alcohol in water. What volume (in mL) of isopropyl alcohol is used to make 750 mL of rubbing alcohol?   A household wine is measured to be 12.9 % V/V ethanol. What volume of ethanol (in mL) would be contained in two bottles of wine if each bottle has a volume of 750 mL?   42.0 mL of anaesthetic is added to distilled water to make a 200 mL solution.  What is the % V/V of the new solution?

2- A sample of an acid 2.4 g dissolved in 100 ml. water. This sample was titrated with 40 ml sodium hydroxide (0.10 N). Find out the molecular mass of the acid knowing that it is mono-equivalent.

can you help w/ 1c?

In the lab background and part II section A of the lab protocol, you calculated the amount of 0.1 M sucrose stock solution and the amount of dH2O needed to prepare 100 mL of unbuffered 20 mM sucrose. Enter your numbers only. What is the amount of 0.1 M sucrose stock needed in mL? What is the amount of dH2O needed to bring to final volume? QUESTION 11

You are creating a standard curve for a protein experiment. You have to stock solution of BS a and would like to obtain dilutions. Explain how you would create a 1:1000 dilution of your protein stock solution.