Rates of Chemical
Reactions

 

How Do You Rate?

Observation Chart

BEAKER CONCENTRATION OF
HYDROCHLORIC ACID		 TIME OF REACTION IN SECONDS (S)
A 3.0% HCl(aq)  
B 0.3% HCl(aq)  
C 0.03% HCl(aq)  

Conclusion:

  1. Which beaker had the reaction that lasted the longest time?
  2. Which beaker had the reaction that lasted the shortest time?
  3. Which one of the three beakers had the strongest concentration of hydrochloric acid
    (HCl(aq))?
  4. Write a statement to describe how the rate of a reaction is affected by changing the concentration of a substance. blank line
     
     
  5. Was your hypothesis correct?blank boxyes blank box no
  6. Remember to switch roles at the next station.