Mole to Mole Ratio

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Exercise

(A) A 3.0 mol sample of KClO3 was decomposed according to the equation 2KClO3(s) ---> 2KCl(s) + 3O2(g)

How many moles of O2 are formed assuming a 100% yield?

(B) An excess of Al and 6.0 mol of Br2 are reacted according to the equation 2Al + 3Br2 --> 2AlBr3

How many moles of AlBr3 will be formed assuming 100% yield?

(C) For the reaction C2H4(g) + 3O2(g) --> 2CO2(g) + 2H2O(g) if 6.0 mol of CO2 are produced, how many

moles of O2 were reacted?

(D) For the reaction 4NH3(g) + 7O2(g) ---> 4NO2(g) + 6H2O(g) how many moles of ammonia will be required

to produce 10.0 mol of water?

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