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.
To find the number of molecules in a gas sample, given the pressure, volume, and temperature of the sample: 1  Figure out how many moles of CO 2 gas you have.2  Use Avogadro's number to convert moles into molecules: 0.0211915 mol Ã 6.02Ã1023 molecules/mol = 1.28 Ã 1022 molecules. Convert molecules of gas to moles of gas, using the mole-to-molecule conversion. 2  Assuming the gas sample is ideal, you can easily compute the volume of the gas using the ideal gas equation of state because you know the temperature, pressure, and moles of gas.