# Element X has a half life of 32 mins, 16 g of element X is decayed in 10 half lives, how much sample was initially available?

##### 1 Answer

Jul 5, 2018

#### Explanation:

Here's a question I made myself and would like to answer:

The time of the half-life of X in the problem is an irrelevant piece of information

To Set up an equation, set the 16g equal to the amount decayed over 10 half lives