<p>at 0 degrees celsius and 1.0 atm the density of C2H4 gas (2 carbon 4 hydrogen) is approximately</p>
<p>a 0.8
b 1
c 1.3
d 2.5
e 28</p>
<p>E? </p>
<p>theres no volume given</p>
<p>is it supposed to be a molar gas (the gas is one mole)?</p>
<p>molar mass=(dRT)/P.</p>
<p>d=(molar mass*P)/RT</p>
<p>gas occupies 22.4L per mole at STP (0 celcius, 1atm)…</p>
<p>molar mass of c2h4 is 28.</p>
<p>28/22.4 = 1.25 g/L = 1.3</p>
<p>yea i had it the other way around i got .8, which is just the reciprocal…that what happens when you dont sleep for a week</p>
<p>woww, ofcourse it’s C b/c the volume at STP is 22.4 and the grams is approx 28, so 14/11 is 1.something</p>
<p>Yeah, all this chemistry studying is getting people (including me) all crazy.</p>