gabrielperez184108 gabrielperez184108

04-06-2021
Chemistry

contestada

A sample of a certain isotope has an initial activity of 40,000 cpm. After 24.8 days, the activity is 2500 cpm. What is the half life of the isotope?

Respuesta :

agbliyah agbliyah

04-06-2021

Answer:

6.2 days

Explanation:

initial activity = 40,000 cpm

one half-life = 20,000 cpm

two half-lives = 10,000 cpm

three half-lives= 5,000 cpm

four half-lives = 2500 cpm

24.8 days/4 half-lives = 6.2 days/ half-life

Answer Link

Otras preguntas

Although most predicted Phillip to ______ his father, he surprised them by reversing several of his fathers more malevolent policies. dislike resemble influence

On a game show, the first place winner got cash and prizes worth a total of $4,622.00. The runner-up won a total of $2,541.00. How much more did the first place

Solve the inequality

Marvin drove 310 miles in 5 hours. At this same rate, how far could he travel in 2 hours? a. 105 miles b. 124 miles c. 155 miles d. 170 miles e. 200 miles

Solve The Equation. 6x-6= -9(4x-1/3)

I went shopping for a new car. the suggested manufacturers price is $26,985. With discounts for first time car buyer, being a college graduate, and the Labor Da

I went shopping for a new car. the suggested manufacturers price is $26,985. With discounts for first time car buyer, being a college graduate, and the Labor Da

For each function f, find f^-1 and f^-1(5). f={(-1,5), (0,0), (2,6)}

Graph: f(x) = -√x Step 1: Evaluate the function to find three points. f(0) = -1 0 1 -2 2 1 -2 9 y 2 6 x x y

Solve the inequality