chemistry- thank you
posted by Anthony on .
What is the maximum weight (in grams) that 15 party balloons, each filled with 2 L of helium, can lift at STP? You can assume the weight of the balloon rubber is negligible and the outside air can be treated as pure nitrogen.
lift each has:
Note. Normally, one would have multiplied all that by 9.8N/kg. But your teacher has asked for lift of "weight" on grams. Hmmm. Mass is not weight, but forgive her.
now, density air= densityN2=mass/volume
or = 28g/22.4liters
and for He, 4g/22.4liters