Editing 2021 CP Review HW For Acid Base Test

ChemistryWiki | RecentChanges | Preferences

Answer the following questions showing appropriate work. 
 
1) For the following substances, give the chemical name and indicate if it is strong, weak or non-electrolyte? 
1a) Ca1Br2 
1b) C1O2 
1c) H1F1 
 
2) For the following substances, give the chemical name and indicate if it is a weak acid, strong acid, weak base, or strong base. 
2a) NH3 (called ammonia) 
2b) H1(NO2)1 (also written <nowiki>HNO</nowiki>2) 
2c) H2SO4 
2d) Mg1(OH)2 
 
3) An Acidic solution has a pH value greater than 7.0, True or False.(Circle one) 
 
 
4) Give one characteristics/property of an acid (besides producing H1+ when in water). 
 
 
5) Reacting with a metal to produce hydrogen gas is a characteristic of most bases. True or False. 
 
 
6) Which of the following will produce OH1- when added to water: Acid or base (Circle one). 
 
 
7) pH scale counts H1+ concentration using an inverse log scale. True or False (Circle one) 
 
 
8) Which of the following types of solution will have a higher OH1- concentration than H1+ concentration: Acidic, Neutral or Basic solution (Circle one). 
 
 
9) Which of the following ionizes (or dissociates) 100% in water: Strong acid/base or Weak acid/base? (Circles one) 
 
 
10) An increase of one pH unit (i.e. pH = 4.0 to pH = 5.0) changes the H1+ concentration (in M) by: increase by 1 times, decreases by 1 time, increases by 10 times, decreases by 10 times or does not change concentration (Cirlce one).
 

 
<center>2021 CP Review HW for Acid Base Test</center> 
<center>Page 2</center> 
 
Show all appropriate work to answer the following questions/problems. Please write the mathematical equation you are using to calculate the answers before "plugging" in to it. 
 
 
11) What is the pH of a solution that has a H1+ concentration (in units of M) of 1.0E-8M (1.0 X 10-8 M)? 
 
 
 
 
 
12) What is the H1+ concentration (in units of M) of a solution that has a pH = 4.21 ? 
 
 
 
 
 
13a) What is the [H+] of 8.13E-9 M H1Br1 solution? 
 
Reaction : __________________________________________________ 
Please show work here including molar ratio. 
 
 
 
 
13b) What is the pH of that solution? 
 
 
 
14a) What is the [H+] of 4.92E-7 M H2CO3 solution (Carbonic acid is actually a weak acid but let us assume it is a strong acid for this calculation)? 
 
Reaction : __________________________________________________ 
Please show work here including molar ratio. 
 
 
 
 
14b) What is the pH of that solution?

View other revisions
ChemistryWiki | RecentChanges | Preferences