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

n=28.03

Explanation:

For this problem you would have to use the Ideal gas law formula which is . In this formula, R is called the ideal gas law constant which is R= 0.08205

For your problem, this formula would look like this...

First you would have to convert Celsius to Kelvin:   273 + 127 C= 400K

Your problem would look like this in the formula

Once solved n= 28.03 mol

b.

the accuracy of the data.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.