te Oxoacids Of C : × YG ? Sodium hydrogen ,TG nglearning.com/ibiscms/mod/ibis/vi
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te Oxoacids Of C : × YG ? Sodium hydrogen ,TG nglearning.com/ibiscms/mod/ibis/view.php?id-4748272 x ? AmazonSmile Redbubble hulu ? spingfield college e Bookstore ? Prideret p printing ng Balance Chemical F × How Much Cuo W X 4/16/2018 11:59 P 84 2100 3 4/16 2018 Print ¡? Calculator Periodic Table Question 8 of 10 University Science Books A 0.760 gram sample of a metal, M, reacts completely with sulfuric acid according to vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and the temperature is 25 'C The vapor pressure of water at various temperatures can be found in this table Caloulate the molar mass of the metal R/ molExplanation / Answer
Volume of H2 gas collected V = 295 mL x 1L/1000 ml
= 0.295 L
Barometric pressure = atmospheric pressure - vapor pressure
= 756 - 23.8
= 732.2 mmHg x 1atm/760mmHg
P = 0.9634 atm
Temperature T = 25 +273 = 298 K
Moles of H2 gas collected =PV/RT
= 0.9634 x 0.295 / 0.0821 x 298
= 0.01162 mol
Moles of Mets reacted = 0.01162 mol
Molar mass of metal = 0.760/0.01162
= 65.4 g/mol
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