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Chemistry 5 Online
OpenStudy (anonymous):

How many moles of helium are contained in a 2.5L vessel at 300K under a pressure of 5.35atm?

OpenStudy (australopithecus):

https://en.wikipedia.org/wiki/Ideal_Gas_Law Ideal Gas Law

OpenStudy (australopithecus):

The equation is at the very top of the page, rearrange the formula to solve for moles.

OpenStudy (australopithecus):

Also make sure the units you sub into the equation match up with the units in the gas constant R

OpenStudy (australopithecus):

Otherwise you will get a weird answer

OpenStudy (anonymous):

oh okay gracias :)

OpenStudy (anonymous):

I meant thanks

OpenStudy (anonymous):

@Australopithecus I do not get the correct answer to what you recommended :(

OpenStudy (australopithecus):

You need to make sure that R has units L atm

OpenStudy (australopithecus):

0.0821 liter·atm/mol·K

OpenStudy (australopithecus):

is your R value now try.

OpenStudy (anonymous):

okay thanks

OpenStudy (australopithecus):

Wow I messed up the algebra ugh, PV = nRT PV/RT = n

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