Respuesta :
Answer:
- 0.022% starch/min
Explanation:
Initial Conc. = 0.050 %
Final conc. = 0.028 %
Time = 1 min
Rate of Reaction = Rate of disappearance = Change in concentration of starch / time
Rate of disappearance = [0.028 - 0.050 ] / 1
Rate of disappearance = 0.022 / 1 = - 0.022% starch/min
The negative sign denotes that the starch is disappearing.
Based on the data provided, the rate of disappearance of starch is -0.022%/min
What is the rate of a reaction?
The rate of a reaction is the decrese in concentration of reactant molecules with time or the increase in concentration of products with time.
- Rate of reaction = change in concentration of reactant or product/ time
From the reaction given:
Decrease in concentration of starch = 0.028 - 0.050 = -0.022%
time taken = 1.0 min
Rate of disappearance of starch = -0.022%/1 min
Rate of disappearance of starch = -0.022%/min
Learn more about reaction rate at: https://brainly.com/question/24795637