Time and concentration data were collected for the reaction A ⟶ products t (s) [A] (M) 0 0.52 20 0.43 40 0.34857 60 0.28538 80 0.23365 100 0.19130 The blue curve is the plot of the data. The straight orange line is tangent to the blue curve at t = 40 s. A plot has the concentration of A in molar on the y axis and time in seconds on the x axis. A curve contains the points (0, 0.52), (20, 0.43), (40, 0.35), (60, 0.29), (80, 0.24), and (100, 0.20). A line touches the curve at (40, 0.35) and has a y intercept of (0, 0.48). Approximate the instantaneous rate of this reaction at time t = 40 s.

Instantaneous rate of reaction is the rate of reaction at certain point of time. The instantaneous rate for given reaction is at 40 second is -0.00325 mol/L/s.

Instantaneous rate of reaction:

This is the rate of reaction at certain point of time.

For given reaction instantaneous rate can be calculated as,

Where,

y- concentration

x - time

Therefore, the instantaneous rate for given reaction is at 40 second is -0.00325 mol/L/s.

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Explanation:

A ⟶ Products

I plotted your blue curve and the orange line in the diagram below.

Calculate the instantaneous rate

The instantaneous rate of reaction is the negative slope of the orange line.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons