Chemistry 30

FAQ | Formulas & Tables | Glossary | Home | Lab Storage | Site Map
Thermodynamics: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources

 

Kinetics: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Equilibrium: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Solutions: Unit Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Acids & Bases: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Redox Reactions: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources

Acids & Bases

Assignment 1: What are Acids & Bases?

Print out the assignment : Word | RTF | PDF

 

1. What is the difference between a strong electrolyte and a weak electrolyte? For your answer you should define these terms and explain what makes an electrolytic solution strong or weak.
2. Classify each of the following as either an acid or a base:
 
  1. The substance has a bitter taste

  2. H2SO4

  3. HNO3

  4. litmus paper dipped in this turns red

  5. reacts with active metals to produce hydrogen gas

  6. KOH

  7. NH3

  8. has a slippery feel

  9. has a sour taste

  10. a proton donor

  11. a proton acceptor
3. Define amphoteric.
4. Write balanced equations for each of the following:
  a. The dissociation of potassium hydroxide, KOH
  b. The ionization of formic acid, HCOOH without including water as a reactant
  c. The ionization of formic acid, HCOOH, showing the formation of the hydronium ion
5. For each of the following bases, write the formula for its conjugate acid; for each acid write the formula of the conjugate base.
 

 

Base

Conjugate Acid

 

Acid

Conjugate Base

a.

I

 

 

HClO4

 

b.

SO32-

 

 

H2S

 

c.

PO43-

 

 

HCO3

 

d.

C2H3O2

 

 

 

 

6. For each of the following reactions, identify each substance in the equation as a Brønsted-Lowry acid or Brønsted-Lowry base (reactant side of the equation), and as a conjugate acid and conjugate base (product side).
 

a.

NH4+(aq)

+

CN(aq)

HCN(aq)

 

NH3 (aq)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b.

(CH3)3N(aq)

+

H2O(l)

(CH3)3NH+(aq)

+

OH(aq)

 

 

 

 

 

 

 

 

7. Predict the product of the following acid-base reaction
 

NH2(aq) + H2O(l)

 

Credits | Central iSchool | Sask Learning | Saskatchewan Evergreen Curriculum | Updated: 31-May-2006