kinetics) for First Order Reactions Part B The intograhed rate law allows chemis

Question

kinetics) for First Order Reactions Part B The intograhed rate law allows chemists to predict the reactant Express your aneww with the approp it. amount of time, or for a certain concentration to be reached The inbegrahed rate law for a frat-onder reaction is Visw Avallable Hint) A-Ale Now say we are parscularty intereated in the time it would take for 2.86-10 to concentration to become or-ha" of its real vek. Then we could substitutfor [A and earrange the equation to This equation caloulates the time required for the reactant Previous Anewens Correct concentration to drop to haf its inital value In other words, it Part How long wil& take for the reactant concentration to drop to of ls iel vue ceain first-onder reaction has arate constant of 2.50 Express your answer with the appropriate units. View Avalable Hints .oca ? 2.16 S x Incorrect Try Again; 3 attempts remaining Provide Feedback MacBook Air 20 8

Explanation / Answer

for first - order :

rate constant = 2.50 x 10^-3 s-1

rate becomes = 1/8

initial = Ao

final = Ao / 8

rate constant k = 1/t ln (Ao / At)

2.50 x 10^-3 = 1/t ln (Ao / Ao/8)

t = 831.8

time takne = 832 sec

Related Questions

Navigate

• Browse (All)
• Browse K
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.