An element decays by 50% every hour (in other words, it has an hour half-life). If you have 48 grams of the element, then how many grams will there be in 5 hours?

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

Explosion Pills asked Mar 4, 2023

147,409 views

29 votes

An element decays by 50% every hour (in other words, it

has an hour half-life). If you have 48 grams of the element,
then how many grams will there be in 5 hours?

Mathematics
high-school

Explosion Pills asked Mar 4, 2023

by Explosion Pills

3.1k points

0 Comments

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Your answer

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

1 Answer

27 votes

Answer:

1.5 grams

Explanation:

This is because if there are five hours there will be 5 half lives due to it decaying 50% every hour. Therefore we would have to dived 48 by 2, 5 times or in other words 48÷
2^(5) = 1.5