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Given the following reactions: Fe2O3(s)+3CO(s)->2FE(s)+3CO2(g)∆H=-28kj 3FE(s)+4CO2(s)->4CO(g)+Fe3O4(s)∆H=125kj The enthalpy of the reaction of Fe2O3with CO 3Fe2O3(s)+CO(g)->CO2(g)+2Fe3O4(s) is __________ kJ. a) -59.0 b) 40.5 c) -15.5 d) -109 e) +109 Some parts where cut off...

Given the data in the table below, ∆H°rxn for the reaction Ca(OH)2+2H3AsO4->Ca(H2AsO4)2+2H2O Is ______kj. Substance ∆H°(kj/mol) Ca(OH)2=-986.6 2H3AsO4=-900.4 Ca(H2AsO4)2=-2346.0 2H2O=-285.9 Is the answer: a) -744.9 b) -4519 c) -4219 d) -130.4 e) -76.4

Solid copper reacted with nitric acid in 5.00 liters of water. Copper nitrate and nitrogen monoxide are formed. If the volume of nitrogen monoxide collected over water was 1.50L at 25C and 1.00atm, how much copper must have been reacted? This was my homework: PV = nRT Assuming NO(g) behaves...

Solid copper reacted with nitric acid in 5.00 liters of water. Copper nitrate and nitrogen monoxide are formed. If the volume of nitrogen monoxide collected over water was 1.50L at 25C and 1.00atm, how much copper must have been reacted?

10.00L of air (dj=1.19g/L) is bubbled into 100mL of 0.2600M HCl at the same temperature and pressure. Ammonia in the air bubbled in reacts with H+ as follows: NH3(aq)+H^+(aq)->NH4^+(aq) The un-reacted hydrogen ions required 57mL of .035M NaOH for complete neutralization. What is the percentage...