A hellium filled ballon is designed to rise to a height of 50 km at which point it will be fully inflated and have the volume of 100000 litres.At that altitude the temperature is minus 5 degree centigrade and atmospheric pressure is 1.52 mm how many litres of helium at ntp will be required to fully inflat the ballon and what will be its weight?
**I found the Volume of helium required at NTP i.e. 203.74 litres by using combined gas law.But I am not able to find its weight yet.The answer is 36.38 g.
Wish for quick help*_*
