How many ml of a 40% solution can be prepared from 42.8 mg of sucrose? How many ml of a 40% solution can be prepared from 42.8 mg of sucrose? Question 3 options: b. 0.107 µl e. 1.09 µl a. 1.11 µl c. 10.08 µl d. 2.08 µl
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- What volume of water is needed to make 40uL of 100ug/mL BSA from a 2mg/mL BSA stock? Group of answer choices A) 0.8uL B) 38uL C) 5uL D) 2uL E) 2000uLYou have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock solution is 5M. a)How would you make 300mL of a 1X solution? b)What is the concentration of NaCl in your 1X solution?. How much patient serum is needed to make a 1 mL 1:25 dilution? b. If a test procedure requires that the patient serum be diluted with 7 parts of distilled water, how much diluent should be used if the required serum volume is 250 µL? What is the final volume and dilution factor of the solution? c. How much NaCl in grams and distilled water is needed to make 10 mL of 0.9% NaCl solution? d. What is the final dilution factor of a solution if 500 µL serum is diluted with 9.5 mL of distilled water?
- a) A bottle is labeled Demerol (meperidine) 50 mg/cc. How many cubic centimeters are needed to give a 125 mg dose? b) Promazine HCL comes as 500 mg/10 ml. How many milliliters are needed to give 150 mg dose? c) Hyaluronidase comes as 150 U/cc. How many cubic centimeters for a 30 U dose?The table below summarizes the results for Sudan IV test. Which solvent the lipid samples are homogeneous? PUT A CHECK Hexane Ethyl Acetate Water Methanol A B C Which solvent the lipid samples are heterogeneous? PUT A CHECK Hexane Ethyl Acetate Water Methanol A B C What is the nature of the lipid samples?* A. Polar B. NonpolarHigh-density polyethylene (HDPE) is opaque while low-density polyethylene (LDPE) is transparent. Which of PE’s two forms has the higher Tm? Justify your answer.
- What volume of 2mg/mL BSA stock is needed to make 40uL of 100ug/mL BSA? Group of answer choices A) 2000uL b) 38uL c) 2uL D) 5uL E) 0.8uLThe components of poison ivy and poison oak that produce the characteristic itchy rash are catechols substituted with long-chain alkylgroups. If you were exposed to poison ivy, which of the treatments below would you apply to the affected area? Justify your choice.(a) Wash the area with cold water.(b) Wash the area with dilute vinegar or lemon juice.(c) Wash the area with soap and water.(d) Wash the area with soap, water, and baking soda (sodium bicarbonate).A volumetric flask made of Pyrex glass is calibrated at 20 °C.It is filled to the 100 mL mark with 35 °C acetone. After the flask is filled the acetone cools and the flask warms so that the combination of acetone and flask reaches a uniform temperature of 32 °C. The combination is then cooled to 20 °C. a) What is the volume of the acetone when it is at 20 °C? b)At the temperature of 32 °C, does the level of acetone lie above or below the 100 mL mark?
- Given the equation of the line, y=150x-8.1221 (cells per mL is in 10^8), what is the CFU per mL of the original suspension if the thousand-fold dilution of that suspension has an absorbance of 0.3 at 600nm? * A. 3.7 x 10^12 B. 3.7 x 10^9 C. 3.7 x 10^1 D. None of these is correctYou have a 6 M solution of stock A. You do the following serial dilutions: Add 1 ml of stock A to tube B. Add 9 ml H2O. Mix.Then take 1 ml from tube B and put it into tube C. Add 19 ml H2O. Mix. Then put 5 ml from tube C into tube D. Add 5 ml H2O. A. what is the final (cumulative) dilution of stock A (dilution factor)? B. What is the final concentration (include units) after all these dilutions?How many mL of methadone is needed for a patient who was prescribed 0.015 g of methadone? The vial reads 6 milligrams of methadone per 1 mL of solution.