HONORS CHEMISTRY HELP!!!!?

2017-07-25 10:54 pm
1. Compound A reacts with compound B in the reaction 2A + 3B → C with a rate law of rate = k[A][B]2. What is the rate order with respect to compound A?

0
2
1
3

2. The oxidation of iodide ions by arsenic acid in acidic solution occurs according to the following stoichiometry:
H3AsO4 + 3I– + 2H3O+ → H3AsO3 + I3– + 3H2O

The experimentally determined rate law for the reaction is: rate = k[H3AsO4][I–][H3O+]. What is the order of the reaction with respect to H3AsO4?


1
2
3
5


3. The oxidation of iodide ions by arsenic acid in acidic solution occurs according to the following stoichiometry:
H3AsO4 + 3I– + 2H3O+ → H3AsO3 + I3– + 3H2O

The experimentally determined rate law for the reaction is: rate = k[H3AsO4][I–][H3O+]. What is the order of the reaction with respect to I–?


1
2
3
5

回答 (2)

2017-07-25 11:01 pm
1.
2A + 3B → C
Rate = k [A] [B]²
The order of reaction with respect to A = The power of [A] = 1

The answer: 1


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2.
H₃AsO₄ + 3I⁻ + 2H₃O⁺ → H₃AsO₃ + I₃⁻ + 3H₂O
Rate = k [H₃AsO₄] [I⁻] [H₃O⁺]
The order of reaction with respect to H₃AsO₄ = The power of [H₃AsO₄] = 1

The answer: 1


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3.
H₃AsO₄ + 3I⁻ + 2H₃O⁺ → H₃AsO₃ + I₃⁻ + 3H₂O
Rate = k [H₃AsO₄] [I⁻] [H₃O⁺]
The order of reaction with respect to I⁻ = The power of [I⁻] = 1

The answer: 1
2017-07-25 10:59 pm
Oh hell no


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