070 (VIN) Calculation (conc. of stock = 0.05) Volume of food coloring stock x 76 concentration of food total volume of tube Coloring Stock 10.0 mL 100% dye 2.0 mL H₂O 2.0 mL H₂O 2.0 mL H₂O 2.0 mL H₂O 2.0 mL H₂O 4.0 mL 4.0mL 4.0mL 4.0mL 4.0mL L N N www 1.8 ml 1.8 ml 1.8 mL 1.8 mL 1.8 mL 1.8 mL 日 Dilution table Test tube # 1 2 3 2345 Volume of food coloring stock Volume of distilled water added to beaker from preceding, mL added to beaker, mL 10.0 stock solution 4.0 4.0 4.0 4.0 4.0 6 4 n.a. 2.0 2.0 2.0 2.0 2.0

Lead nitrate Stock Solution— Dissolve 159.8 mg of lead nitrate in 100 mL of water to which has been added 1 mL of nitric acid, then dilute with water to 1000 mL. Standard Lead Solution— On the day of use, dilute 10.0 mL of Lead Nitrate Stock Solution with water to 100.0 mL. Standard Preparation— Into a 50-mL color-comparison tube pipet 2 mL of Standard Lead Solution, and dilute with water to 40 mL, and mix. Test Preparation— Into a 50-mL color-comparison tube dissolve 1.0g ascorbic acid (mol wt 176.12) in 25 mL of water, dilute with water to 40 mL, and mix. Procedure— To each of the two tubes containing the Standard Preparation, the Test Preparation, add 2 mL of pH 3.5 Acetate Buffer, then add 1.2 mL of thioacetamide–glycerin base TS, dilute with water to 50 mL. Mix, allow to stand for 2 minutes, and view downward over a white surface. The color of the solution from the Test Preparation is not darker than that of the solution from the Standard Preparation. The colour is formed when…

Normal text Calibri BI UA G |EE| +2 I +3+1 CICCO4, 1 LE | ZJ VITICHI SUpstances did not test positive for any of the organic compound Distilled water did not test positive for any of the organic compounds. 5| 6 3) 4) What do all of the indicators you have used have in common? Indicators are all substances whose solutions change color due to changes in p 5) Is there a macromolecule that the tests in this lab did not test for No, there is no macromolecule that the lab did not test for. 6) Which compound is most common in foods that come from plants? Cellocuse is the single most common biochemical compound in living things. 7) If you wanted to reduce the amount of fat in your diet, what foods would you avoid? Steer away from foods high in saturated and trans fats like fried foods, fatty meats, stick margarine, snacks and items with hydrogenated oil. M 6 8) Which foods tested would your body use for a quick burst of energy? a. For energy when no carbohydrates are available? b. For building…

Choose the one answer that fits best. Which of the following statements regarding the proper procedure for using Micropipettes is NOT correct? O a. You cannot use a 2-20 µl micropipette to pipet 200 µl O b. To expel all the liquid from the tip, you have to press the eject button O c. To draw up solution, press and hold the plunger at the first stop before entering the solution O d. Micropipettes always require the use of a disposable plastic tip O e. While pipetting, micropipettes should always be held as straight as possible

Rx Clindamycin phosphate 4% w/v Propylene glycol 12.9% w/v Purified water 11% w/v Isopropyl alcohol ad 244 mL (Sp.G. = 0.880) Ft. clindamycin gel Sig.: Place thin layer onto affected areas How many grams of isopropyl alcohol are present in a clindamycin gel that has 76 mL of purified water? Assume negligible volume shrinkage as result of mixing these ingredients. Answer: 415.2 (please show all work) ANSWER IS ALREADY GIVEN PLEASE SHOW WORK IN DETAIL HOW IT COMES

All recipes are given per litre unless specified.   Lambda Broth (LB) Plates                                                  Top Agar   10 g tryptone                                                                           10 g Tryptone 2.5 g NaCl                                                                               2.5 g NaCl 15 g Agar                                                                                7 g Agar   Make 5 mL aliquots, then autoclave.   Lambda Broth (LB) Media                                                  Suspension Media   10 g tryptone                                                                           5.0 g NaCl 2.5 g NaCl                                                                               2 g MgSO4· 7H2O                                                                                                 50 ml 1 M Tris pH 7.5                                                                                                 In LB medium…

All recipes are given per litre unless specified.   Lambda Broth (LB) Plates                                                  Top Agar   10 g tryptone                                                                           10 g Tryptone 2.5 g NaCl                                                                               2.5 g NaCl 15 g Agar                                                                                7 g Agar   Make 5 mL aliquots, then autoclave.   Lambda Broth (LB) Media                                                  Suspension Media   10 g tryptone                                                                           5.0 g NaCl 2.5 g NaCl                                                                               2 g MgSO4· 7H2O                                                                                                 50 ml 1 M Tris pH 7.5                                                                                                 In LB medium…

If 2.4 vial Conatins 100 units of Botox and 0.2 ml is injected into 3 sites during surgery how many units will remain in the vial

34. A dermatologic lotion contains 1.25 mL of liquefied phenol in 500 mL. Calculate the percentage (v/v) of liquefied phenol in the lotion. 34. 0.25% v/v liquefied phenol

Streptomycin sulfate 400 mg IM daily is ordered for a child weighing 77lbs.  The recommended dosage is 20-40 mg/kg/day once daily.  A 1 gram vial of streptomycin sulfate is available in powdered form with the following instructions: Dilution with 1.8 mL of sterile water will yield 400mg per mL.  If safe, how many mLs will you give?