The rate law equation for a given complex chemical reaction is given as the product of molar concentrations of the reactant raised to the power their respective partial reaction orders. The sum of the partial reaction orders is equal to the overall order of reaction.

For a complex reaction, the rate law is generally determined by the slowest step, which is known as the rate-determining step.

Given reaction mechanism:

Step 1: 2 A⟶ B, slow step

Step 2: B+ C⟶ D, fast step

Overall: 2 A + C ⟶ D

In this given reaction mechanism, the step 1 is the slow step and thus the rate determining step.

Therefore, the rate law for the given mechanism is:

Rate: R = k [A]²

Here, k is the overall rate constant

Also, the overall order of the reaction = 2

Therefore, the given chemical reaction is said to be second order reaction.

3 0

3 years ago

Cornstarch, a carbohydrate consisting of hydrogen, carbon, and oxygen

Dennis_Churaev [7]

Answer:

ionic

Explanation:

8 0

2 years ago

Phenol is a compound that contains 76.57% carbon, 6.43% hydrogen, and 17.0% oxygen. Calculate the empirical formula.

Ulleksa [173]

Answer:

C₆H₆O

Explanation:

The given values are the percentage in mass of each element. Empirical formula is the simplest ratio of atoms presents in a molecule. Thus, the first we need to do is convert this percentage to mass using molar mass of each element:

Moles C:

76.57C * (1mol / 12g) = 6.38 moles C

Moles H:

6.43 * (1mol / 1g) = 6.43 moles H

Moles O:

17.0% * (1mol / 16g) = 1.06 moles O

Dividing each number of moles in the moles of O (The minimum number of moles. Used to obtain "The simplest ratio..."):

C = 6.38 moles C / 1.06 moles O = 6

H = 6.43 moles H / 1.06 moles O = 6

O = 1.06 moles O / 1.06 moles O = 1

That means empirical formula of phenol is:

3 0

3 years ago

If the earth was a guava fruit, the space where the seeds are would be the core/mantle​

If the earth was a guava fruit, the space where the seeds are would be the core/mantle