They also are used for: 1  general anesthesia, 2  sedation prior to surgery or diagnostic procedures, 3  muscle relaxation,  alcohol withdrawal and drug associated 1  agitation, nausea and vomiting,  depression, 1  and. panic attacks.
Remember that 1 dm3 = 1 000 cm3 so the volume is also 12 000 cm3. The equation can be rearranged to find the number of moles, if the volume of gas at rtp is known: number of moles = volume of gas at rtp Ã· 24. Calculate the number of moles of hydrogen that occupy 6 dm3 at rtp. number of moles = 6 Ã· 24 = 0.25 mol.
The molar volume of an ideal gas is therefore 22.4 dm 3 at stp. And, of course, you could redo this calculation to find the volume of 1 mole of an ideal gas at room temperature and pressure-or any other temperature and pressure. Finding the relative formula mass of a gas from its density This is about as tricky as it gets using the ideal gas equation.