The reaction is known to be zero order in A with a rate constant ...

[fbq8i]

Question 1

The reaction has the following rate law:
   
After a period of 2.7 × 10³ s, the concentration of NO falls from an initial value of 2.8 × 10^–3 mol/L to 2.0 × 10^–3 mol/L. What is the rate constant, k?

◦ 1.5 × 10^–7M^–1·s^–1

◦ 5.3 × 10^–2M^–1·s^–1

◦ 3.2 × 10^–1M^–1·s^–1

◦ 1.2 × 10^–4M^–1·s^–1

◦ 2.6 × 10^–2M^–1·s^–1

Question 2

The reaction is known to be zero order in A with a rate constant of 5.0 × 10^–2 mol/L s at 25°C. An experiment was run at 25°C where [A]₀ = 1.7 × 10^–3M. The half-life for the reaction is

◦ 1.7 × 10^–2s
◦ 1.7 × 10²s
◦ 5.0 × 10^–2 s
◦ 3.4 × 10^–4s
◦ None of these are correct.

[morganmarie791]

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[fbq8i]

Gracias!

[debra928]

Thanks for the timely response, appreciate it