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.
Use Avogadroâs law to determine the number of moles of butane gas. Assume that butane is an ideal gas and that one mole has a volume of 22.4 L at STP. V 1 /n 1 = V 2 /n 2 0.0896 L/n = 22.4 L/1 mole n = 0.0040 moles 12. Experimental molar mass (g/mole) of butane: 0.23 g/0.0040 moles = 58 g/mole 13.The molecular formula of butane is C 4 H 10.Calculate its molar mass.se the combined gas law to determine the volume (in L) of butane at STP.11. Use Avogadroâs law to determine the number of moles of butane gas. Assume that butane is an ideal gas and that one mole has a volume of 22.4 L at STP.12. Experimental molar mass (g/mole) of butane13.