# Naturally occurring uranium contains 0.72 percent of the isotope uranium-235. What is the mass of uranium-235 in 2,000 kg of naturally-occurring uranium?

##### 1 Answer

Mar 9, 2016

#### Answer:

I found

#### Explanation:

We can use our percentage to find it as:

Percentage represents a fraction of

if in

i.e.

rearranging: