Arkansas State University
Department of Chemistry
and Physics
Worksheet 1a
Limiting Reagents

 
 
 

For each reaction below:

a)  determine the limiting reagent

b)  determine the number of grams for each of the products

c)  determine the number of grams of excess reagent left

1.     H3PO4    +    3 KOH    g      K3PO4      +    3 H2O

start with 20.0 g H3POand  30.0 g KOH

2.   Zn  +  2 HCl     g   ZnCl2    +   H2

start with 10.0 g Zn and 36.46 g HCl
 

3.   P4  +  5 O2      g   P4O10

start with 42.0 g P4 and 16.0 g O2

answers