tatouchette5891 tatouchette5891

01-08-2022
Chemistry

contestada

A 200. 0-ng sample of sodium-24 was stored in a lead-lined cabinet for 45 hours. The half-life of sodium-24 is 15 hours. How much sodium-24 remains?

Respuesta :

jsimpson11000 jsimpson11000

01-08-2022

Answer:

25 gm would be left

Explanation:

45 hours is 3 half lives

200 gm * 1/2 * 1/2 * 1/2 = 25 gm

Answer Link

Otras preguntas

Help me please.... Question Three sides of a rectangular paddock are to be fenced, the fourth side being an existing straight water drain. If 1000 m of fencing

Bats and birds are unrelated animals, yet they both evolved wings. by acquiring similar traits (i.e., wings) as they adapted to similar environments, these spec

How do I solve this

The debate team has 15 members. Each member sold c coupon books as a fundraiser. Write an expression that shows the number of coupon books the club sold.

Which nutrient class supplies glucose as the main source of energy for the body?

Imagine that doctors are observing a new disease, and they don't know what causes it. what are some possible causes of diseases? what kinds of things would scie

An artillery shell is fired at an angle of 56.1 degrees above the horizontal ground with an initial speed of 1660 m/s. The acceleration of gravity is 9.8 m/s^2.

The _______ gave the huguenots freedom of worship.

What are the two primary functions of carbohydrates in living organisms?

Please help me with this!!!!!