If a compound has a half life of 48 hours and a dosage of 75mg is taken every 2 days, what is total amount of the compound will remain after 2 weeks? 4 weeks?
Half life of a drug refers to when the concentration of the becomes half of the given dose.
Here the half life of the drug is 48 hours and the concentration of the medicine will be 37.2 mg(38mg)
By 14th day it will be fully eliminated ( second week)
The total amount will be remaining after two weeks is nil
The dose 525 mg for half life at 2weeks is 98 hours
If a compound has a half life of 48 hours and a dosage of 75mg is taken every 2 days, what is total amount of the compou...
If a substance has a half-life of 3.70 days, and there are initially 50.0 g of the substance, how many grams will remain after precisely three weeks? Report your answer with three significant figures.
A compound has a half-life of 5.2 days and decays following first-order kinetics. What percent of the original sample remains after 20 days?
Consider a 15.60g sample of 131I, which has a half-life of 8.02 days. a. How much of the sample (in grams) will remain after 16.04 days? b. How much of the sample will remain after 16.04 hours?
The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 5 weeks after the start? Submit Question
2. Half-life is the time required for half of an amount of a particular compound to degrade (see table below). The half-life of DDT in the soilis from 2 to 15 years, and the half-lite of DDT in an aquatic environment is 150 years. 1 half-life 2 half-lives 3 half-lives 4 half-lives 5 half-lives 50% degraded 75% degraded 88% degraded 94% degraded 97% degraded a. If the original concentration of DDT in the water is 2 ppm, how much DDT...
Problem 11: Beryllium-7 has a half-life of 53.1 days. What fraction of the nuclei in a beryllium sample will remain after 225 days? [If it will help, you can assume that 109 nuclei are present at the start] (6)
2. Half-life is the time required for half of an amount of a particular compound to degrade (see table below). The half-life of DDT in the soil is from 2 to 15 years, and the half-life of DDT in an aquatic environment is 150 years. 1 half-life 50% degraded 2 half-lives 75% degraded 3 half-lives 88% degraded 4 half-lives 94% degraded 5 half-lives 97% degraded a. How many years have passed after five DDT half-lives in an aquatic environment? b....
Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32P, how many grams will remain after 70.0 days ? Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/32.0 of the original amount. How long ago was this plant alive?
Please show every step!
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91. If the half – life of a sample of radioactive material is 60 days, what fraction of the original radioactive nuclei will remain after 120 days.