# A cylinder of argon gas contains 50.0 L of #Ar# at 18.4 atm and 127 °C. How many moles of argon are in the cylinder?

##### 1 Answer

Feb 19, 2016

#### Answer:

The cylinder contains

#### Explanation:

Use the ideal gas law.

**Known**

https://en.m.wikipedia.org/wiki/Gas_constant

**Unknown**

**Solution**

Rearrange the equation to isolate