Chemistry 100 - University of Illinois at Urbana–Champaign
Transcript Chemistry 100 - University of Illinois at Urbana–Champaign
Electronic homework (Lon-Capa)
HW4 Type 1 due Monday, March 10 by 7 pm;
HW4 Type 2 due Wednesday, March 12 by 7 pm
HW5 Type 1 due Monday, March 17 by 7 pm;
HW5 Type 2 due Wednesday, March 19 by 7 pm
Exam 2 review: due Wednesday, March 19 by
Exam #2: Thursday, March 20, 7 pm
Method 1: Have vs. Need
Compare what you HAVE with what you
The limiting reactant determines the
amount of product.
The amount of leftover reactant is the
difference between what you HAVE and
what you NEED.
Method 2: Maximum Product
Determine the maximum amount of
product from each reactant.
The reactant which produces the least
amount of product is the limiting
The least amount of product is the
amount of product formed.
Method 3: ICE Table
Set up ICE Table [Initial, Change, End].
Amounts must be in terms of number
At least one reactant is completely used
up (goes to zero at End).
Change row: same ratio as the
Starting With Masses
You react 84 g of N2(g) with 22 g H2(g)
to produce ammonia [NH3(g)].
Determine the mass of ammonia
Determine the mass of left-over