A drug suspension is prepared with concentration of 0.08 M. It hydrolyses at 25°C with a rate constant of 0.035 M/h. What is the half-life of this suspension? Report your answer in hours to 2 decimal places. How to solve this?
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A drug suspension is prepared with concentration of 0.08 M. It hydrolyses at 25°C with a...
A drug with concentration 0.83 M decomposes via acid-catalysed hydrolysis with a rate constant of 0.026 M−1 h−1. What is the drug concentration after 55 hours? Report your answer to 2 decimal places. How to solve this?
please show work An aqueous suspension of drug X was formulated containing 100 mg of the drug per teaspoon (5 ml). When the suspension was stored at room temperature (25°C), the half-life was found to be 3.0 days. The half-life increased to 20 days when the suspension was stored in the refrigerator (5°C). Assuming pseudozero-order degradation, calculate the rate constant of drug X at each of these temperatures. (Note: drug degradation in a suspension follows pseudo zero order kinetics)
A drug is given at an infusion rate of 55 mg/h. The drug concentration value determined at 3.0 h after the start of the infusion is 8 mg/L. Assuming the patient has 5.3 L of blood, estimate the half-life of this drug. Round your answer to two decimal places.
Degradation of a drug at room temperature shows the following drug concentration remaining as a function of time. Degradation of a drug at room temperature shows the following drug concentration remaining as a function of time. Time (months) Concentration (mg/mL) 400 300 28 25 18 24 182 Plot the concentration data using excel and from the slope of the plot, determine the order of the reaction. Also, using the slope of the linear plot, calculate the rate constant (to 3...
, and 0.41 M in potassium benzoate A solution is prepared at 25 °C that is initially 0.14 M in benzoic acid (HC H,CO2), a weak acid with K -6.3 10 (KCH,CO2). Calculate the pH of the solution. Round your answer to 2 decimal places. pH-
A Zn/Zn2+ concentration cell has a voltage of 0.204 V at 25 ∘C. The concentration of Zn2+ in one of the half-cells is 1.49×10−3 M . What is the concentration of Zn2+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.) Express your answer using 2 decimal places and in pM. (p = pico = 10-12)
please help me with the ones you can. thank you!! Solve for x in the equation: In = 10 1.3x10-4 Report your answer with 2 significant figures. A/ Question 2 (1 point) The decomposition of hydrogen peroxide is described below. 2 H2O2 (aq) → → 2 H2O (1) +O2 (g) rate = k[H202] The rate constant for the reaction is 5.3x10-4 M/s. If the initial concentration of hydrogen peroxide is 0.320 M, calculate the time it takes for the concentration...
A graphing calculator is recommended. A drug is administered to a patient, and the concentration of the drug in the bloodstream is monitored. At time t ≥ 0 (in hours since giving the drug) the concentration (in mg/L) is given by c(t) = 5t/ t2 + 1 . Graph the function c with a graphing device. (Round your answers to two decimal places.) (a) What is the highest concentration of drug that is reached in the patient's bloodstream? (b) How...
We want to calculate the average concentration of a relatively short acting drug in a patient. A bolus of the drug is given quickly via intravenous (IV) and the initial concentration of the drug in the patient is 20 mg/dL. The drug has a half-life of 2 hours. What is the average concentration of the drug in this patient's body over 5 half-lives? Assume first-order kinetics.
QUESTION: Concentration? The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half life of 29 minutes. Suppose in a particular patient the concentration of this drug in the bloodstream immediately after injection is 1.9 μg in minutes later? what will the concentration be 87 Round your answer to 2 significant digits. mL