Theophylline was administered to a patient at dosing rates of 600 mg/day and 1200 mg/day and the respective steady-state concentrations were found to be 9.8 mg/L and 28.6 mg/l. Find Km and Vmax- Determine the dosing rate to achieve a Css of 15 mg/l.

A phamacist reconstituted a vial of 750 mg Cefuroxime Sodium Powder for Injection with 6mL of sterile water for injection. The reconstituted solution was dark amber-colored solution. The package insert states that solution colors range from clear to yellow depending on concentration, diluent, and storage conditions. The pharmacist was then hesitant to give the patient the solution due to its unusual dark color. Five portions were taken from a batch of cefuroxime sodium. Prior to testing in the instrument, each part was subjected to one of the following conditions: Conditions Specifications Temperature Portion 1: 8°C ± 2°C Portion 2: 30°C ± 2°C Portion 3: 40°C ± 2°C Light Portion 4: Kept in the dark Portion 5: Exposed to direct sunlight a. Which form of the product – the powder for injection, the reconstituted product, or both – will you subject to the following conditions and why? b. Will you also expose the reference standard of cefuroxime sodium to the same…

Assume an adult female who weighs 64 kg drinks 2.4 L of water every day and the absorption factor for the chemical of concern is 75% (so 25% of the chemical is excreted). The concentration of the chemical in the drinking water is 51 ppb. Determine the dose in mg/kg-day.

Part A: Standardization of Potassium Permanganate, KMnO4 Solution Your Data Group I Group II Group III Mass of Na2C2O4 used 0.23 9 0.30 g 0.22g 0249 Initial buret reading Om L 3 mL 0 mL 0 mL Final buret reading 36.6 mL 28 mL 31.3mL 51.1mL Volume of KMnO4 used 36.6 mL 50 mL 31.3 mL 51.1mL 25+25

3. An ophthalmic solution of a mydriatic drug at 5 mg/mL with a rate constant of 0.0005/day. How much will remain after 120 days?

The concentration of gadolinium was measured in the discharge from a wastewater treatment plant near a large medical facility. Eight measurements were obtained: 1.411 ppm, 1.411 ppm, 1.401 ppm, 1.409 ppm, 1.979 ppm, 1.408 ppm, 1.419 ppm, 1.402 ppm. Use the Grubbs test to determine if one of these values is an outlier. What is the value of ?cal?

Purification table formula: A=Elc Absorption is 1.471 E= 27,000 (GFP) l= 1 cm 1.417=27,000 M^-1 (1 cm) (c) Given 5.44810^-5 M is the concentration convert the concentration units Molarity (mol/l) to mg molar mass of GFP is 27,000 g

Please

5. Why is decantation rather than filtration the preferred method of separating the salt from the mixture? 12:03 AM

4-16. Zinc is an essential micronutrient in pet food, but is toxic if present in excess. Do the Zn concentrations (mg/g) for the five cat foods and two dog foods determined by two methods differ significantly at the 95% confidence level? Cat 1 Cat 2 Cat 3 Cat 4 Cat 5 Dog 1 Dog 2 Old method: bris 8 Я 84.9 73.5 173.0 62.7 154.0 80.1 185.0 New faster method: 86.2 81.8 186.0 73.4 138.0 72.5 203.0 SO Souza, S. S. L. Costa, R. G. O. Araujo, C. A. Cats and