Converting to pounds (since the question was in English units I assume the answer is desired in English units) we get 0.0807 lbs. Note: After rounding errors and such, our current accuracy is such that anything less than 0.01g is insignificant and I have left those numbers out.Īdding these numbers together (remember the rest was insignificant) we get 36.61g. ![]() Our big soft brush coats every lash with the air-injected technology, locking in up to 24h of smudge & flake. Our 1st whipped texture is game-changing, giving you inflated lashes as the formula expands on lashes for up to 10x more impact. These are the results (and the molecular symbol for each):īy looking on the periodic table for the atomic weight of constituent atoms in the above molecules (for instance CO2 we would get the weight for C and add to it twice the weight of O) and multiplying by the number of moles we have of these substances, we will get the following weights for the substances: NEW L’Oréal Paris Air Volume mascara is taking your lashes to new heights with mega volume light as air. Great, we can now determine how many moles of each particular substance we have from the percentage composition of air. Going back we can take this number to find that 28.32 liters of gas at STP is going to be 1.26414494 moles of air. Quick conversion of 1 cubic foot to liters gives us 28.32 liters. A mole of iron is therefore 55.845 grams. For instance, if we were to look up iron (Fe) on a periodic table, we find that its atomic weight is 55.845. The special thing about a mole is that a if we have a molecule, we can find that molecule's molecular weight (from a periodic table) and that's how many grams a mole of the molecule would weigh. So another way to say this is that a singe mole of gas at STP will fill 22.4 liters. This amount (Avogadro's number) is called a mole. There is a neat property that applies to any gas that a 22.4 liters of it at STP (standard temperature and pressure) contains 6.02214199 x10^23 molecules of said gas. This is the composition of air (as cited from the website above) by volume: We will assume average composition at sea level at 0 degrees Celsius which is known as STP or Standard Temperature and Pressure.įor reasons that should become clear a bit later, we need the volume of the various components, not the weight. This breakdown is actually greatly affected by where we are in the world and how far we are above sea level and other factors. (For those unfamiliar with the site's punctuation, a comma "," is used instead of a period "." a decimal delineation mark). ![]() A quick internet search popped up which gives us something to work with. What is air made of and how much is it made of. Discussing these variables and how these variables affect the air is one of the foundations of meteorology - the study of weather.īut given some data and making a few assumptions we can come to an answer that is probably pretty close.įirst of all, we need to know the composition of air. This one doesn't have an answer that is exact or necessarily correct as air is a composite mixture of various gases and this mixture can change due to an enormous quantity of variables. What is the weight of 1 cubic foot of air?įINAL ANSWER: 1 cubic foot of air at standard temperature and pressure assuming average composition weighs approximately 0.0807 lbs.
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