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harkovskaia [24]
3 years ago
9

The solution remaining from Part A, which contains 0.0100 M Ni2 and Fe2 ions, is still saturated with H2S gas, producing a conce

ntration of 0.100 M. A buffer is added to this solution to produce a pH of 1.51 . Which of the following describes correctly the effect of the addition of the buffer?a) Only NiS precipitates.
b) Only FeS precipitates.
c) Both NiS and FeS precipitate.
d) Neither NiS nor FeS precipitate.
Chemistry
1 answer:
Arturiano [62]3 years ago
5 0

Answer:I think the answer would be B

Explanation:

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1. Calculate the average reaction rate expressed in moles H2 consumed per liter per second.
valentina_108 [34]

Answer:

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2) 0.0025 mol/L.s.

Explanation:

  • For the reaction:

<em>H₂ + Cl₂ → 2HCl.</em>

<em></em>

<em>The average reaction rate = - Δ[H₂]/Δt = - Δ[Cl₂]/Δt = 1/2 Δ[HCl]/Δt</em>

<em></em>

<em>1. Calculate the average reaction rate expressed in moles H₂ consumed per liter per second.</em>

<em></em>

The average reaction rate expressed in moles H₂ consumed per liter per second = - Δ[H₂]/Δt = - (0.02 M - 0.03 M)/(4.0 s) = 0.0025 mol/L.s.

<em>2. Calculate the average reaction rate expressed in moles CI₂ consumed per liter per second.</em>

<em></em>

The average reaction rate expressed in moles Cl₂ consumed per liter per second = - Δ[Cl₂]/Δt = - (0.04 M - 0.05 M)/(4.0 s) = 0.0025 mol/L.s.

7 0
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