Ask your own question, for FREE!
Chemistry 30 Online
gelphielvr:

How do I get started? When the temperature of a rigid hollow sphere containing 685L of helium gas is held at 621K, the pressure of the gas is 1.89 x 10^3kPa. How many moles of helium does the sphere contain?

gelphielvr:

also what formula do I have to use?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
r4v3n: How do I make a group chat :3
55 minutes ago 2 Replies 2 Medals
gelphielvr: which candy are they describing being made? "As described by a 1980 patient, the candy is made by dissolving sugars in water and is evaporated at 320F until
1 hour ago 1 Reply 0 Medals
BALLERZALLER5463: Can I have help making/fully making a ST (Stranger things) Oc? Here's the basic i
16 hours ago 11 Replies 1 Medal
lovelove1700: Why does pulse rate increase during exercise? Oxygen must be moved to the lungs a
16 hours ago 5 Replies 1 Medal
zanesafoodie: my new song, (CAROUSEL) (massive TW!!!!!!!!!) Stress and anxiety~ All my fears are lying to me Oh my god what is Ha-ppe-ning My head is spinning like a caro
19 hours ago 5 Replies 2 Medals
jamoncito: I need help with writing my character. More specifically, I need help making his addiction seem real.
23 hours ago 7 Replies 3 Medals
luisaam2: WRITING TASK Prompt: Consider what you have learned from the sources. You will now construct an original argument using your own ideas and evidence.
22 hours ago 18 Replies 1 Medal
gelphielvr: History/Geography The South and Western part of the United States are known as th
2 days ago 3 Replies 1 Medal
Bounty: -Does anyone know the difference between ib-psychology and psychology
2 days ago 3 Replies 8 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!