# Question #a773b

##### 2 Answers

The volume of gas is 3.571 L.

**Step 1.** Write the balanced equation.

**Step 2.** Calculate the moles of

**Step 3.** Use the Ideal Gas Law to calculate the volume of CO₂

STP is 100 kPa and 273.15 K.

The great thing about **STP** is that the ideal gas law calculations have already been done for you for **1 mole** of a gas.

At STP conditions, **100.0 kPa** and **0 degrees C**, to be more precise, **1 mole** of *any ideal gas* occupies exactly **22.71 L**. This is known as the molar volume of a gas at STP.

So, in your case, once you get the number of moles of carbon dioxide produced, you can multiply that value by the molar volume of a gas at STP to get the volume you need

So, don't forget about the molar volume of a gas at STP. If nothing else, you can use it to double check the calculations you've made using the ideal gas law.

At **STP**, for **n moles** of ideal gas