Calculate serial dilution. If we pipette 1 mL of sample into tube of 9 mL of 0.1 peptone water. Sample is 25 g of meat which was mixed with 225 mL of sterile peptone water. Make further dilutions up to 10 -10.
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- 5.00 ml of the 1.0 x 10-4 M CV stock solution is first diluted to 100.ml. Then 1.00 ml pf this solution is diluted again to 50.0 ml. What is the final concentration?Quantity 800 mg 0.5 ml 5ml 25ml 4. Ingredients 1. Acetaminophen 2. Alcohol 3. Glycerin 4. Cherry syrup 5. FD&C red q.s 6. Citric acid q.s 7. Water q.s to 50 ml Calculate the %v/v of Alcohol in the above formula.Prepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%. Write complete solution using padpaper.
- 2. You need to make 500mL of 7H9(+) media with 1X ADN and 30ug/ml. of the antibiotic kanamycin. Your stock solutions are 10X ADN and 30mg/mL of kanamycin. The solvent is distilled water. How much of cach component will you need to make the desired final solution?In a test tube, dissolve 10 drops of methanol in 3 ml. of water. Oxidize a copper wire spiral by passing it through a Bunsen burner. Plunge the red-hot wire into the alcohol solution several times, cooling the solution under the tap (faucet) so as not to evaporate too much of it. Next, add 1 drop of 0.5% resorcinol solution. Measure 2 ml. of concentrated sulfuric acid (CAUTION!) and pour this carefully down the sides of the test tube containing the mixture. Note the color of the zone intermediate between the acid and the solution. RESULT:Q/ Prepare 0.1 N and 0.1 M of 98% H,SO, in 250 ml. M.wt of H,SO, = 98 g/mol, and its Specific density (SP.gr.) = 1.09 .
- How many grams of a 25% v/v hydroalcoholic solution should be used in preparing 32 fl.oz. of a 5% v/v solution. Specific gravity of the stock solution is 1.52.Q/ Prepare 0.1 N and 0.1 M of 98% H,SO4 in 250 ml. M.wt of H,SO4 = 98 g/mol, and its Specific density (SP.gr.) =1.09 . tousityxio4. You need to prepare a stock solution of medium for your culture cells, which usually includes liquid salt solution and bovine serum. Your liquid salt solution is supplied in a 50X concentration, and you need to dilute it to 1X for use. You also need to add 75% fetal bovine serum for a final concentration of 15%. How would you make up 0.80 liters of this culture media using water as your solvent?
- Biological studies have found that aqueous solutions containing as little as 28 µg of allicin per milliliter inhibit bacterial growth. Express this amount as the number of moles of allicin per liter of solution. \(28~\text{ug/mL}=\) \(text{mol/L}\) 20 F3 II F8 F4 F5 F6 F7 F9 F10 F11 F12 & %24 4. 3 5 7 9 { } P E T Y U %3D * CO R %23Question 8 of 10 Submit A solution is made using 200.0 mL of methanol (density 0.7920 g/mL) and 295.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol? % 1 2 3 4 7 8 9 +/- x 10 0 Tap here or pull up for additional resources LO18. You need to dilute 10 M sulfuric acid to 0.5 M sulfuric acid for your experiment. You plan to use 100 mL of your diluted solution. How much of the concentrated solution do you need? Hint use M₁V₁=M₂V₂ 0.5 mL 5 mL C. 50 mL d. 500 mL a. b. (10M)V₁ = (0.5)(100ml) sob (10) = 500 1.05 10