Calculate the initial rate for the formation of C at 25 ∘C, if [A]=0.50M and [B]=0.075M. Express your answer to two significant figures and include the appropriate units.

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Calculate the initial rate for the formation of C at 25°C, if [A]=0.50 M and [B]=0.075 M. Express your answer to two significant figures and include the appropriate units.Consider the reaction

A + 2B ⇔ C

whose rate at 25°C was measured using three different sets of initial concentrations as listed in the following table:

The table is attached below as an image.

The initial rate for the formation of C at 25°C is

Explanation:

Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

For the given chemical equation:

Rate law expression for the reaction:

where,

a = order with respect to A

b = order with respect to B

....(1)

....(2)

....(3)

Dividing 2 by 1, we get:

Dividing 3 by 1, we get:

Thus, the rate law becomes:

      ......(4)

Now, calculating the value of 'k' by using any expression.

Putting values in equation 1, we get:

Calculating the initial rate of formation of C by using equation 4, we get:

[A] = 0.50 M

[B] = 0.075 M

Putting values in equation 4, we get:

Hence, the initial rate for the formation of C at 25°C is

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8