Question

250 mg of a drug is given IV and at the end of 1 hour, 125 mg remains. How long after the initial injection until there is approximately 30 mg? (Assume first order reaction)

Name: 250 mg of a drug is given iv and at the end of 1 hour 125 mg remains how long after the initial injection until there is approximately 30 mg assume first order reaction 57547
Uploaded: 2023-06-22T07:19:27-08:00
Duration: 1 min 15 s
Channel: Adi S
Description: 250 mg of a drug is given iv and at the end of 1 hour 125 mg remains how long after the initial injection until there is approximately 30 mg assume first order reaction 57547

          250 mg of a drug is given IV and at the end of 1 hour, 125 mg remains. How long after the initial injection until there is approximately 30 mg? (Assume first order reaction)

Added by William M.

Instant Answer

Solved by Expert Adi S

06/22/2023

Step 1

The first-order reaction equation is: ln([A]t/[A]0) = -kt where [A]t is the concentration at time t, [A]0 is the initial concentration, k is the rate constant, and t is the time. Given: [A]0 = 250 mg [A]t = 125 mg t = 1 hour Using the given values, we can solve Show more…

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250 mg of a drug is given IV and at the end of 1 hour, 125 mg remains. How long after the initial injection until there is approximately 30 mg? (Assume first order reaction)