A gas occupies a volume of 10.0 L at standard temperature and pressure (STP). How many moles of gas are present?
Understand the Problem
The question is asking to calculate the number of moles of an ideal gas given its volume at standard temperature and pressure (STP). We can use the ideal gas law or the molar volume at STP to solve this problem.
Answer
0.446 moles of gas are present.
At Standard Temperature and Pressure (STP), 1 mole of any gas occupies 22.4 L. To find the number of moles in 10.0 L, divide 10.0 L by 22.4 L/mol, resulting in approximately 0.446 moles. The final answer is 0.446 moles.
Answer for screen readers
At Standard Temperature and Pressure (STP), 1 mole of any gas occupies 22.4 L. To find the number of moles in 10.0 L, divide 10.0 L by 22.4 L/mol, resulting in approximately 0.446 moles. The final answer is 0.446 moles.
More Information
STP conditions are defined as 0 degrees Celsius (273.15 K) and 1 atmosphere of pressure. The molar volume of an ideal gas at STP is approximately 22.4 liters per mole.
Tips
A common mistake is using the wrong molar volume or not recognizing the conditions are at STP.
Sources
- A sample of gas occupies 10 L of space at STP. How many moles of ... - quora.com
- How many moles of gas are present in a 10.0 liter sample at STP? - homework.study.com
- How many moles are present in 10.0 L of nitrogen gas at STP? - homework.study.com
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