# Final

 1    In the reaction N2 + 3 H2 -> 2 NH3, what is the mole ratio of hydrogen to nitrogen?   A   1 : 1 B   1 : 2 C   3 : 1 D   3 : 2
 C   3 : 1
 2   What is the new pressure of 150 mL of a gas that is compressed to 50 mL when the original pressure is 3.0 atm and the temperature is held constant?   F   100 atm G   0.90 atm H   1.0 atm J   9.0 atm
 H   1.0 atm
 3   Carbon tetrachloride is a solvent wich is used as a refrigerant and also as a cleaning agent. Prior to the 1950s, carbon tetrachloride was maufactured by the chlorination of carcon sidulfide: CS2 + 3 Cl2 -> CCl4 + S2Cl2 but now it is mainly produced from methane: CH4 + 4 Cl2 – > CCl4 + 4 HCl How many grams of carbon tertachloride can be proiduced from reacting 709.0 grams of chlorine (Cl2) qith excess methane?   A   3.845 g B   61.53 g C   384.5 g D   6153 g
 C   384.5 g
 4   In the reaction ! + B -> C + D, if element B is in excess, then —   F   A is the limiting reactant G   B is the limiting reactant H   C is the limiting reactant J   Both A and B are limiting reactants
 F   A is the limiting reactant
 5   Use the information in the table to answer the question. Which is the correct heat of reaction ( ? H rxn) for the decomposition of two moles of water according to the following endothermic reaction? 2H20(g) -> 2H2(g) + O2(g) A   ? H°f  =  +241.8 kJ B   ? H°f  =  -285.8 kJ C   ? H°f  =  +438.6 kJ D   ? H°f  =  -571.6 kJ
 C   ? H°f  =  +438.6 kJ
 6
x

Hi!
I'm Larry

Hi there, would you like to get such a paper? How about receiving a customized one?

Check it out