hi guys, dont kill me for this question lol i have a question relating to chemistry, i asked in this forum because it has to do with CO2 related to my mushroom growing. im no chemist, i studied alittle bit.. but not much :X i just know like the downright basics of the periodic table and such.. i want to know how to determine the wieght of CO2, because CO2 is heavier then O2.. what is it, CO2 is 1 part carbon, and 2 parts oxygen..? so how do you use math to find out the wieght of CO2.. is it like C12+O32=CO2(46) .. and 46 wiould be the atomic mass of CO2? heh sorry, i know this is a fucking newbish question, just id like to know, it might come in handy...
Well. Find the molecular mass of CO2 (mole). 44 grams it seems like. Use that in your math. Moles are super helpful. Oxygen is 32 grams (diatomic, 2 bound together)
Add up the atomic weights of each atom to get the mol. weight. O2 is 16 +16 = 32. N2 is 14 + 14 = 28. CO2 is 12 + 16 + 16 = 44. If you want the density of CO2 compared to air, we find that the average molecular weight of air is set to about 28.5 (mostly N2, some O2) and air has been designated to have a density of 1. If CO2 mol. wt. is 44 divided by 28.5 = then CO2 has a density of 1.54 or 54% heavier than air.
