Question

Hi can anyone help me find moles of air!!!! I'm struggling with this formula

Answer 1

What is your starting value of air (\(\sf \color{red}{O_2}\))

Answer 2

i really don't know i'm working on a Vapor pressure experiment, i have to use a formula

Answer 3

\[N _{air}=\frac{ PV }{ RT }\]

Answer 4

my R will equal 0.8206, T=350, V=0.0075 but i don't know what P will equal

Answer 5

Rearrange your formula. Reemember what you did to a formula to solve for something in algebra?

Answer 6

yes

Answer 7

but if i rearrange my formula i would have to know the moles of air

Answer 8

I would assume 1 mol if you were not given a specific starting number.