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

In the line, “sighs that caused the everlasting air to tremble,” appeals to the reader’s _____ and _____, are used to set a mood of discomfort and unrest. visi

Listening Comprehension You will hear a story in Spanish. It’s rather lengthy. As you listen to the story, take notes on scrap paper. Listen a second time, and

Oliver completed his project in no more than twice the amount of time it took Karissa to complete her project. Oliver spent 4 1/4 hours on his project. If k re

what is an apple describe in a sentence

Shakespeare’s historical plays dramatize the lives of English rulers during the Medieval era. Why are these plays not always historically accurate?

Which statement best describes an advantage of direct democracy over indirect democracy? A. It can work better for nation-states with large populations. B

How does jane react to st. john’s sermon??

Badel has 120 cm³ of water he wants to pour into a rectangular base that is 4 cm high 40 mm wide and 5 cm long will all the water fit into the vase explain

The volume of a cube is 64 cubic centimeters. What is the surface area of the cube?

What is one result of the Supreme Court’s decision in the McCulloch v. Maryland case? A.State governments were no longer able to impose taxes on interstate com