The lowest pressure achieved in a laboratory is about 1.0 10-15 mm Hg. How many molecules of gas are present in a 1.23 L sample at that pressure and a temperature of 24.1°C?

Question

The lowest pressure achieved in a laboratory is about 1.0  10-15 mm Hg. How many molecules of gas are present in a 1.23 L sample at that pressure and a temperature of 24.1°C?

aaronq · Answer

PV=nRT, ma friend.

ars22 · Answer

how many molecules though? @aaronq

aaronq · Answer

find the number of moles, then multiply that by avogadros number

ars22 · Answer

thanks, it turned out i typed in the wrong number for avogadro's number in the calculator

aaronq · Answer

damn, at least you caught it !