For a reaction a + b → products, the following data were collected. experiment number initial concentration of a (m) initial concentration of b (m) observed initial rate (m/s) 1 3.40 4.16 1.82 ✕ 10−4 2 4.59 4.16 3.32 ✕ 10−4 3 3.40 5.46 1.82 ✕ 10−4 calculate the rate constant for this reaction.

Rate constant k = 1.57*10⁻⁵ s⁻¹

Explanation:

Given reaction:

Expt    [A] M        [B] M         Rate [M/s]

1          3.40         4.16           1.82*10^-4

2         4.59         4.16           3.32*10^-4

3.        3.40          5.46          1.82*10^-4

where k = rate constant

x and y are the orders wrt to A and B

To find x:

Divide rate of expt 2 by expt 1

To find y:

Divide rate of expt 3 by expt 1

Therefore: x = 2, y = 0

To find k

Use rate for expt 1:

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation:

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