PLEASE HELP How many moles of helium gas are in a 30.0 L sample of He, if density of helium gas us 0.016 g/ml?

I think you need to use dimensional analysis with this problem as well, please help!!

I pray to god, that this helps you, cuz if not, then you know why i got a F in english and a D- in algebra :")

https://www.celinaschools.org/downloads/stp_gas_calculations_practice.ppt

33.6 L (this is the answer i think- i'm not sure but i do have a link to the REAL answer- https://socratic.org/questions/what-would-be-the-volume-of-6-00-g-of-helium-gas-at-stp#629064  here are the steps- along with the answers)

.

Explanation:

= 33.6 L

Explanation:

(seriously though, please tell me this helped you)

o"w"o

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;