# What is the volume at STP of 2.66 mol of methane gas?

##### 2 Answers

#### Explanation:

Because we are at standard temperature and pressure and are given only one set of conditions, we have to use the ideal gas law equation:

I should mention that the pressure does not always have units of atm, it depends on the units of pressure given in the gas constant.

List your known and unknown variables.

- Number of moles

- Temperature

- Pressure

Volume of

At STP, the temperature is 273K and the pressure is 1 atm.

Let's rearrange the equation to solve for V:

Because the temperature and pressure are given as STP, all that is need is to use the molar volume.

#### Explanation:

1 mole = 22.4 liters.

so # 2.66 moles / 1.00 mole =

```
#V/ 22.4#
```

2.66 x 22.4 = 59.58 liters.