# Question #20ca9

##### 1 Answer

Volume: **1.8 L**.

#### Explanation:

In order to determine the volume occupies by your sample of carbon dioxide gas, you need to use the ideal gas law equation

*ideal gas constant*, expressed in **atm L/mol K**;

**Kelvin**.

Before using the ideal gas law equation, use carbon dioxide's molar mass to determine how many moles of gas you have in your **2.5-g** sample

So, isolate the volume of the gas on one side of the equation and plug in your values - **do not** forget to convert the presure to **atm** and the temperature to **Kelvin**!

I'll leave the answer rounded to two sig figs, despite the fact you only gave one sig fig for the pressure of the sample