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katrin2010 [14]
3 years ago
14

Write a formula for the compound that forms from potassium and chromate.

Chemistry
1 answer:
JulsSmile [24]3 years ago
5 0
Hello!

The compound that forms from potassium and chromate is Potassium Chromate (K₂CrO₄)

This compound has a yellow lime color and is used in enamels, leather finishes, stainless steels and for the identification of silver ion in a silver nitrate solution. It is a powerful oxidizing agent and is produced by the treatment of potassium chromate with potassium hydroxide. It is a very toxic compound an is a known carcinogenic agent.

Have a good day!

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Answer:

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Explanation:

The given kinetic data is as follows:

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1.   0.4      0.4     0.2       160

2.  0.2      0.4      0.4       80

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5.   0.2     0.2      0.4       20

The rate of the above reaction is given as:

Rate = k[A]^{x}[B]^{y}[C]^{z}

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Order w.r.t A : Use trials 3 and 4

\frac{Rate3}{Rate4}= [\frac{[A(3)]}{[A(4)]}]^{x}

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\frac{160}{80}= [\frac{[0.4]}{[0.2]}]^{1}[\frac{[0.4]}{[0.4]}]^{2}[\frac{[0.2]}{[0.4]}]^{z}

1 = (0.5)^{z}

z = 1

Therefore, order w.r.t C = 1

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