The kinetics of the reaction of metallic zinc with aqueous hydrochloric acid was
ID: 940140 • Letter: T
Question
The kinetics of the reaction of metallic zinc with aqueous hydrochloric acid was evaluated by monitoring the volume of H2 formed as a function of time. In this evaluation, several experiments were conducted, modifying some initial parameters such as temperature, initial concentration of acid and zinc physical state metallic. Check the box having a volume of H2 profile function of time expected for a pair of experiments, among them varying only one parameter.Explain the reason for your answer below.
45-C Tempo (min) Zno em barra Tempo (min) 45°C Tempo (min) 2> Zn°em barra Tempo (min) 2 [HC 0,10 molL Tempo (min)Explanation / Answer
ANSWER : E
because the formation if Hydrogen gas is directly proportional to the amount of Acid taken
Hers we can observe that,the higher the HCl concentration the greater is the volume of H2 formed.Also we can see that the volume first increases and gradually with time it remains at constant value due to the completion of reactants
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.