Question

F. Would your value for "R" in the last experiment have been higher, lower, or the same if: a) all the magnesium had not reacted. b) we did not account for water vapor pressure. c) we did not account for the water level difference. d) the hydrogen was actually hotter than the water bath.

Answer 1

MgCl2009) + H9) not Solution - 9) 244 lagi) from the stlochiometry of Realtion Moles of H₂ = Moles of Mg. at when completely Reacted, then the mass of rug left in mixture. So, the moles 여 Mg is also less, and because the moles directly proportional to mass. f of substance Molar mass of substance Moles Mous when when mass is less then male is also less for same substance. So, the moles of Mg . is less My does not completely Reacts. So, Moles of He is also less because Moles 여켓 a Moles of My from Ideal gas equation PV = nRT R= pr NT R& when the value of n is less then the value of his greater at somp, volume, pressure & temp. of substance. alone Magnesium hond not Reacted Higher. CS CamScanner

b). PH = Patm = Pro Pago when the is not considered then the Pria = Patm which greater than actual pressure е на Sо, PV=nRT Ro PN RT RaP So pressure is higher then the Ralso higher. If other conditions are some i twe did not account for water vapour pressure Higher C) Similarly. Prog = Patm - Phoo - Prever difference. when the not considered then the Prg = Palm - Pugo which is also greater than the actual pressure Peevel difference R«Р when p is higher then the R also higher.ge other conditions are same. * We did not account for the water lovel difference Higher. CS Scanned with CamScanner

d) the hydrogen gas was actually hotter than the water bath. The meaning of sentence is that the hydrogen enove during Colder than the actual hydrogen gas. It means the temperature of He gas in water bath are less than actual temperature of the reaction in water bath Hy gas. So PV = nRT R= PN sit 1 T R- when the actual the temperature less than temperature the Rrature will be higher if other conditions are some So, 'The Hydrogen actually hotter than the Higher water bath CS Scanned with CamScanner