LEARNING TARGET: STUDENTS WILL UNDERSTAND HOW TO CALCULATE WHICH REACTANT WILL STOP THE REACTION BECAUSE IT IS LIMITING.
Practice PROBLEMS
1. Silicon Dioxide( quartz) is usually quite unreactive but reacts readily with hydrogen fluoride according to the following
__SiO2(s) +__ HF(g)------> __SiF4(g) + __H2O(l)
If 6.0 mol HF are added to 4.5 mol SiO2, which is the limiting reactant?
2. Some rocket engines use a mixture of hydraxine, N2H4, and hydrogen peroxide,H2O2, as the propellant. the reaction is given by the following equation.
__N2H4(l) + __H2O2(l) -----> __N2(g)+ __H2O(g)
Which is the limiting reactant in this reaction, when 0.750 mol N2H4 is mixed with 0.500 mol H2O2
3. The black oxide of iron, Fe3O4, occurs in nature as the mineral magnetite. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following equation.
__3Fe(s) +__HsO(g)---->__ Fe3O4(s)+_-H2(g)
a. When 36.0 g H2O are mixed with 67.0g Fe, which is the limiting reactant?
__SiO2(s) +__ HF(g)------> __SiF4(g) + __H2O(l)
If 6.0 mol HF are added to 4.5 mol SiO2, which is the limiting reactant?
2. Some rocket engines use a mixture of hydraxine, N2H4, and hydrogen peroxide,H2O2, as the propellant. the reaction is given by the following equation.
__N2H4(l) + __H2O2(l) -----> __N2(g)+ __H2O(g)
Which is the limiting reactant in this reaction, when 0.750 mol N2H4 is mixed with 0.500 mol H2O2
3. The black oxide of iron, Fe3O4, occurs in nature as the mineral magnetite. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following equation.
__3Fe(s) +__HsO(g)---->__ Fe3O4(s)+_-H2(g)
a. When 36.0 g H2O are mixed with 67.0g Fe, which is the limiting reactant?