In the reaction A + B → C, the initial concentration of A is 0.054 M. After 1.5 minutes, [A] = 0.032 M. Calculate the rate of the reaction in M/sec.

Respuesta :

Answer:

2.4 × 10⁻⁴ M/s

Explanation:

Step 1: Given data

  • Initial concentration of A ([A]₀): 0.054 M
  • Concentration of A after a certain time ([A]): 0.032 M
  • Time (t): 1.5 min

Step 2: Convert the time to seconds

We will use the relationship 1 min = 60 s.

[tex]1.5min \times \frac{60s}{1min} =90s[/tex]

Step 3: Calculate the rate of the reaction

Since A is a reactant, we will calculate the rate of the reaction (r) using the following expression.

[tex]r=-\frac{\Delta [A]}{t} =-\frac{[A]-[A]_0}{t} =-\frac{0.032M-0.054M}{90s} =2.4 \times 10^{-4} M/s[/tex]