Transcript Chemistry 100 - University of Illinois at Urbana–Champaign

Clicker #1
6 mol H2 reacts with 4 mol O2
Limiting
A)
B)
C)
D)
E)
H2
H2
O2
O2
Neither
Mol Product
4 mol
6 mol
4 mol
8 mol
10 mol
Leftover Reactant
2
1
2
4
mol O2
mol O2
mol H2
mol H2
None
Clicker #2
12 mol H2 reacts with 5 mol O2
Limiting
A)
B)
C)
D)
E)
H2
H2
O2
O2
Neither
Mol Product
6 mol
12 mol
5 mol
10 mol
12 mol
Leftover Reactant
1
7
7
2
mol O2
mol O2
mol H2
mol H2
None
Clicker #3
16.128 g H2 reacts with 96.00 g O2
Limiting
A)
B)
C)
D)
E)
H2
H2
O2
O2
Neither
Mol Product
4 mol
8 mol
1.5 mol
6 mol
6 mol
Leftover Reactant
1
1
2
2
mol O2
mol O2
mol H2
mol H2
None
Example #1
To react 10.0 g of hydrogen gas, what
volume of oxygen gas would you need at
1.05 atm and 22°C?
2H2(g) + O2(g)  2H2O(g)
Example #2
Given 3.00 g of Mg, how much 3.00 M
HCl do we need (in mL)?
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
Example #3
Which case makes the larger balloon (at
the same temperature and pressure)?
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
Case #1: 10.0 g Mg with 586 mL of 3.00 M HCl
Case #2: 15.0 g Mg with 274 mL of 3.00 M HCl
Example #4
Consider the reaction:
(NH4)2CO3(s)  2NH3(g) + CO2(g) + H2O(g)
What total volume of gas is
produced, measured at 453oC and
1.04 atm, if 52.0 g of ammonium
carbonate is heated?