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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 HNO2)
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).
2021 CP Review HW for Acid Base Test
Page 2
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?