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Homework Statement
I wasn't sure about some of these problems, am I doing them correctly?
1) What volume of each of the following bases will react completely with 25.00 mL of 0.200 M of HCl?
a) 0.100 M NaOH
.02500 L x .200 mol HCl/1 L = .00500 mol HCl
.100 M NaOH = .00500 mol NaOH/v ~ v = .0500 L NaOH
b) 0.0500 M Ba(OH)2
.0500 M Ba(OH)2 = .00500 mol HCl/v ~ v = .100 L Ba(OH)2
c) .250 M KOH = .00500 mol KOH/v ~ v = .0200 L KOH
2) Assign oxidation states for all atoms in each of the following compounds:
a) KMnO4
K: -1
O: -2
Mn: +7
b) Hg2Cl2
Hg: +1
Cl: -1
c) NaBiO3
Na: +1
Bi: +5
O: -2
d) CO
C: +2
O: -2
e) Ca(NO3)2
Ca: +2
N: +5
O: -2
f) HAsO2
H: +1
As: +3
O: -2
3) Specify which of the following are redox reactions, and identify the oxidizing agent, the reducing agent, the substance being oxidized, and the substance being reduced.
a) HCl (g) + NH3 (g) --> NH4Cl (s)
-- not a redox reaction
b) Cu (s) + 2Ag+ (aq) --> 2Ag (s) + Cu2+ (aq)
Oxidized: Cu
oxidizing agent: Ag+
Reduced: Ag+
Reducing agent: Cu