Question #34103

1 Answer
Dec 17, 2017

See below.

Explanation:

First, convert °C into Kelvin ---> 28.20°C = 301.2K

Use PV = nRT, plug in the given values and find n, or the number of moles of Krypton.

Since we are using atm for pressure, the R constant is 0.0821

(11.2atm)(18.5L) = n(0.0821)(301.2K) ---> n = 8.379 moles of Krypton

Now you convert moles to grams:
(8.379 moles Kr) * (83.798 grams Kr / 1 mole Kr) ---> ~702 grams of Krypton**