Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

A scientist fills a large, tightly sealed balloon with 75,000 mL of helium at STP.
Using
significant figures, how many moles of helium are contained within the balloon?

Sagot :

CintiaSalazar

Considering the definition of STP conditions, 3.35 moles of helium are contained within the balloon.

Definition of STP condition

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Amount of moles of helium within the balloon

In this case, you know that scientist fills a large, tightly sealed balloon with 75,000 mL of helium at STP.

So, you can apply the following rule of three: if by definition of STP conditions 22.4 liters are occupied by 1 mole of helium, 75 L (75 L= 75000 mL, being 1 L= 1000 L) are occupied by how many moles of helium?

[tex]amount of moles of helium=\frac{75 Lx1 mole}{22.4 L}[/tex]

amount of moles of helium= 3.35 moles

Finally, 3.35 moles of helium are contained within the balloon.

Learn more about STP conditions:

https://brainly.com/question/26364483

https://brainly.com/question/8846039

https://brainly.com/question/1186356

We appreciate your time. Please come back anytime for the latest information and answers to your questions. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.