Answer:
A and B plz mark brainliest
Explanation:
They should be recycled but not reused because the "repeated use increases the risk of leaching and bacterial growth." Also, recycling PET plastic "results in reduced energy consumption, lower cost, and reduced environmental impact."
Answer:
1866.4 secs
Explanation:
The integrated rate law for first order kinetics is given by;
[A] = [Ao] ^-kt
Where;
[A] = concentration of cyclopropane at time = t
[Ao] = initial concentration of cyclopropane
k = rate constant
t = time taken
From the question, we are told that 99% of cyclopropane disappeared hence;
[A] = 0.290 - (0.99 * 0.290)
[A] = 0.290 - 0.2871
[A] = 0.0029 M
Hence
0.0029 = 0.290 e^-2.74 x 10^ - 3 * t
0.0029/0.290 = e^-2.74 x 10^ - 3 * t
0.01 = e^-2.74 x 10^ - 3 * t
ln(0.01) = -2.74 x 10^ - 3 * t
-4.61 = -2.74 x 10^ - 3 * t
t= -4.61/-2.74 x 10^ - 3
t = 1866.4 secs