The total volume of the gas bags of the german dirigible, Ask an Expert

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1. possibly one of the lowest experimental pressures achievable is 1.0*10^-15 torr. how many molecules are there in 250 mL flask that has been ecacuated to this pressure at 77.0K

2. the total volume of the gas bags of the german dirigible hindenberg, was 2.0 * 10^5m^3. how many grams of H2 would be required to fill them at 20 celcius and 1.00 atm pressure? hint convert m^3>cm^3>mL>L.

3. how many grams of KClO3 are needed to produced 44.8 L of oxygen gas measured at STP? 2KClO3(s)> 2KCl(s)+ 3O2(g)

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