SCH3U Unit III Review

Please use the following 10 equations to answer the following questions:

a) K2SO3 + Sr(NO3)2 à KNO3 + SrSO3

b) Ag + Cu(NO3)2 à Cu + AgNO3

c) Fe + S à FeS

d) Pb + Mg(CH3COO)2 à Pb (CH3COO)2 + Mg

e) H2SO4 à H2O + SO3

f) K2SO4· 5 H2O à K2SO4 + H2O

g) H2SO4 + NaOH à H(OH) + Na2SO4

h) Li3PO4 + CaCl2 à LiCl + Ca3(PO4)2

i) C2H2 + O2 à CO2 + H2O

j) C3H8 + O2 à C + CO2 + H2O

1. For each of the above equations please determine the reaction type. Be as specific as possible.

2. Please properly balance each of the above equations

3. Please provide the states of all of the elements and compounds provided above.

4. Identify and name any acids or bases that are present. Predict the pH range for each.

5. Predict the products of the following synthesis and decomposition reactions:

a) H2 (g) + Cl2 (g) à (b) NO2 (g) à (c) AuBr3 à

d) MgO (s) à (e) H2O (l) + NO2 (g) à (f) SO3 (g) + H2O (l) à

6. Determine the products of the following single displacement reactions. Where no reaction is predicted to proceed please write the term ‘NR.

a) any of the single displacement reactions from the ones provided at the top of the page

b) Au (s) + Pb(NO3)2 (aq) à (c) Na (s) + AgCl(aq) à

d) KNO3 (aq) + Fe (s) à (e) Br2 (l) + KI (aq) à

f) F2 (g) + KI (aq) à (g) Li (s) + KI (aq) à

7. What are the differences between an Arrhenius acid, a modified Arrhenius acid and a Bronsted-Lowry acid?

8. Explain, in your words, three key differences between acids and bases.

9. Provide the formulas and names for 4 strong acids, 2 weak acids, 2 strong bases and 2 weak bases.

10. What is the pH of a solution that contains H+ (aq) ion concentrations of the following?

a) 1.00 x 10-11 M (b) 1.5 x 10-3 M (c) 6.29 x 10-13 M (d) 5.58 x 10-4 M

11. Determine hydrogen ion concentrations for solutions that have the following pH readings:

a) 2.50 (b) 1.369 (c) 9.6 (d) 11.586

12. You are provided with 25.00 mL of a base that has an unknown concentration. Since you have an abundance of 0.175 M hydrochloric acid, you decided to perform a titration.

a) Describe the glassware that you will use for this titration (2 pieces minimum) as well as how to use it effectively?

b) what other lab solution is required for this titration to be successful?

c) If you titrate with an average of 22.45 mL of the hydrochloric acid, then what is the concentration of the base – assuming that the base has on OH group like NaOH?

d) How much 0.225 M sulfuric acid would be required to titrate 15.00 mL of 0.350 M sodium hydroxide.