1. ICE
Challenge

2. 1. 25. 0 mL of 0. 100 M NaOH, 10. 0 mL 0. 200 M KOH, and 20. 0 mL of 0
mL of M NaOH, 10.0 mL M KOH, and mL of M H2SO4 are poured into the same beaker. What is the resulting concentration of the excess acid or base?
L x mole NaOH = mol L
L x mole KOH = mol
= mol Total Base
L x mole H2SO4 = mol Total Acid
2XOH + H2SO4 → X2SO4 + 2HOH
I mol mol
C mol mol
E mol
Total Volume = mL mL mL = mL
Molarity Bases = mol = M L

3. mL of M HCl and mL M HNO3, react with excess CaCO3. What is the resulting volume in mLof CO2 produced at STP.
2HCl CaCO3 →
CO2
+ CaCl2
H2O
0.250 L HCl
x mole
x 1 mole CO2
x L
x mL
= mL
1 L
2 mole HCl
1 mole 1L
2HNO CaCO3 →
CO2
+ Ca(NO3)2
+ H2O
0.100 L HNO3
x mole
x 1 mole CO2
x L
x mL
= mL
1 L
2 mole HNO3
1 mole 1L
Total CO2
= mL