# How many grams of Kr are in a 2.74 L cylinder at 58.7 °C and 2.99 atm?

##### 1 Answer

Aug 3, 2018

I get a mass of approx.

#### Explanation:

We use the old Ideal Gas equation...

And we know (how) that krypton has a molar mass of

And so we take the product...…..