1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Estimation problem. help!

  1. Jan 25, 2010 #1
    1. The problem statement, all variables and given/known data

    Estimate to 1 significant figure the total # of air molecules in this room (l=20ft, w=14ft, H= 8ft) Find molecules/room

    2. Relevant equations
    1 mole = 22.4 liters
    6.02 x 10^23 molecules = 1 mole

    3. The attempt at a solution

    volume of room = 2240 ft^3 or approx 683 m^3

    6.02x10^23 Molecules / 1 mole x 1 mole/ 22.41 liters = 6.02 x10^23 molecules/ 22.41 liters.... I am stuck here. how do i figure out how many liters are in the room?
  2. jcsd
  3. Jan 26, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi Teenytiny1991! Welcome to PF! :smile:

    (oooh, you're even smaller than i am! :biggrin:)
    (try using the X2 tag just above the Reply box :wink:)

    How many cm3 to a litre?

    How many cm to a foot? :smile:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook