Download Chemistry Worksheet: Precipitation, Acids and Bases, and Molarity - Chapter 4 - Prof. Zeld and more Assignments Chemistry in PDF only on Docsity!
CH 221—Ziegler Chapter 4 WORKSHEET Precipitation, Acids and Bases, and Molarity
- Oxidation numbers Give the oxidation state of each element in the following compounds
Zn
Pb(NO 3 ) 2
Zn(NO 3 ) 2
HI
HIO 4
H 2 SO 4
CO
CO 2
CO 3 -
NH 3
H 2 O
H 2 O 2
NO 3 -
O 2
N 2
CH 4
- In the following reactions, identifiy: the element which is oxidized, the element reduced, the oxidizing agent, and the reducing agent.
Cu + 2AgNO 3 Æ 2Ag + Cu(NO 3 ) 2
Mg + Ca(OH) 2 Æ Ca + Mg(OH) 2
2AgCl + Co Æ CoCl 2 + 2Ag
Cu + Zn+2^ Æ Zn + Cu+
- Write net ionic equations for any precipitation reaction reactions that occur on mixing aqueous solutions of the following substances.
a. KCl and AgNO 3
b. NaOH and MgCl 2
c. Fe 2 (SO 4 ) 3 and BaCl 2
d. KCl and Mg(NO 3 ) 2
- Write net ionic equations for each of the following acid/base reactions. a. HF + Ca(OH) 2 Æ
b. H 2 SO 4 + Mg(OH) 2 Æ
c. HI + Ba(OH) 2 Æ
d. KOH + HC 2 H 3 O 2 Æ
e. HCl + Fe(OH) 3 Æ
- A solution is prepared by taking 25.00 mL of a 0.300 M Ca(OH) 2 solution, and adding enough water to a total volume of 0.500 L of solution.
a. What is the molarity of Ca(OH) 2 in this solution?
b. Of Ca+2^ ion?
c. Of OH-^ ion?
- Give the net ionic equation describing what happens when 25.00 ml of the solution in 0.300 M Ca(OH) 2 is mixed with 25.00 ml of the solution in 0.100 M MgCl 2.
a. What is the ionic equation for the reaction between these two solutions?
b. How many moles of the precipitate is formed?
c. What is the molarity of each spectator ion in the resulting solution?
