4-8-SHP-1. Consider the reaction of calcium carbonate with acetic acid:
CaCO3(s) + 2 HC2H3O3(aq) → Ca(C2H3O2)2(aq) + H2O(l) + CO2(g)
A solution containing acetic acid is mixed with CaCO3. How much acetic acid is consumed in a reaction that produces 0.400 mol CO2?
A. 0.200 mol, B. 0.400 mol, C. 0.800 mol
4-8-SHP-2. Consider the reaction of calcium carbonate with acetic acid:
CaCO3(s) + 2 HC2H3O2(aq) → Ca(C2H3O2)2(aq) + H2O(l) + CO2(g)
A solution containing acetic acid is mixed with 0.600 mol CaCO3. Suppose the reaction produces 0.400 mol CO2. How much CaCO3 is left unreacted?
A. 0.200 mol, B. 0.400 mol, C. 0.800 mol
4-8-2. Consider the reaction: N2 + 3 H2 → 2 NH3 Suppose a reaction mixture initially contained 0.800 mol N2, and now contains only 0.500 mol N2 as a result of the reaction, how much H2 was consumed?
A. 0.100 mol, B. 0.900 mol, C. 0.300 mol
4-8-3. Consider the reaction: N2 + 3 H2 → 2 NH3
Suppose 0.500 mol of N2 is used up in this reaction. How much NH3 is produced?
A. 4.26 g, B. 8.50 g, C. 17.0 g
4-8-4. Consider the reaction: N2 + 3 H2 → 2 NH3
How much hydrogen is needed to produce 25.0 g of NH3?
A. 2.22 g, B. 4.44 g, C. 1.97 g
4-8-JJW. Iron three oxide can be reduced to iron using carbon according to the equation 2 Fe2O3 + 3 C → 4 Fe + 3 CO2. If we start with 17.0 kg of iron (III) oxide, how much iron metal can we obtain?
A. 34.0 kg, B. 11.9 kg, C. 5.95 kg, D. 2.97 kg
