Chem review

1. For the following unbalanced equation Na + H2O NaOH + H2 if you have 10g Na and 10g H2O which is limiting?

2. For the following unbalanced equation NO + O2 NO2 if you have 1mol NO and 1mol O2 which is limiting?

3. The limiting reactant in a reaction is the reactant that produces the ______ amount of product?

a) Mostb) Leastc) Actual yieldd) Percent yield

4. The excess reactant in a reaction is the reactant that produces the ______ amount of product?

a) Mostb) Leastc) Actual yieldd) Percent yield

5. In our experiment what was the limiting reactant?

a) Pb(NO3)2

b) PbI2

c) KId) KNO3

6. In our experiment which product formed a solid?

a) Pb(NO3)2

b) PbI2

c) KId) KNO3

6. In our experiment how was it possible to extract the PbI2 after the reaction took place?

7. You are trying to form basketball teams and need 2 guards, 2 forwards, and 1 center per team. You have 10 centers 14 forwards

and 12 guards. Which is limiting?

7. You are trying to form basketball teams and need 2 guards, 2 forwards, and 1 center per team. You have 10 centers 14 forwards

and 12 guards. Theoretically how many teams could you form?

8. Iron and CO are made by heating iron ore, Fe2O3 and carbon. You form 356kg of iron ore. Your yield was 75% of max. What is your

actual yield?


percent yield?


theoretical yield?

11. 2KClO3(s) 2KCl(s) + 3O2(g)the density of O2=1.428g/L

Darth Vader needs 5L of O2 to live how much of the reactant do you need to make sure he lives?

12. What is the conversion factor needed to convert mol of O2 to g of O2

13. True/false the limiting reactant is the predicts the theoretical yield?

14. If you have equal masses of Mg and O2 that react which will be limiting?

15. If a question states the reaction produced 19.00g of product, what is the 19.00g?

Chem review

Documents

Transcript of Chem review