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Nonamiya [84]
2 years ago
5

Which is the correct step(s) for this reaction mechanism?

Chemistry
1 answer:
Pachacha [2.7K]2 years ago
7 0

The reaction mechanims shows the sequence of steps through which a reaction occurs. The reaction mechanism for this reaction is;

step 1: NO2 + NO2 → NO + NO3 (slow)

step 2: NO3 + CO → NO2 + CO2 (fast)

<h3>What is reaction mechanism?</h3>

We have to note that not all reactions occur in a single reactive encounter. If a reaction occurs in a single reactive encounter then it is called an elementary reaction.

The reaction mechanim shows the reaction sequence of a non elementary reaction. The correct mechanims of this reaction is shown as;

step 1: NO2 + NO2 → NO + NO3 (slow)

step 2: NO3 + CO → NO2 + CO2 (fast)

Learn more about a reaction mechanism: brainly.com/question/26690612

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A buffer solution contains 0.345 M acetic acid and 0.377 M sodium acetate . If 0.0613 moles of potassium hydroxide are added to
melamori03 [73]

Answer:

pH = 5.54

Explanation:

The pH of a buffer solution is given by the <em>Henderson-Hasselbach (H-H) equation</em>:

  • pH = pKa + log\frac{[CH_3COO^-]}{[CH_3COOH]}

For acetic acid, pKa = 4.75.

We <u>calculate the original number of moles for acetic acid and acetate</u>, using the <em>given concentrations and volume</em>:

  • CH₃COO⁻ ⇒ 0.377 M * 0.250 L = 0.0942 mol CH₃COO⁻
  • CH₃COOH ⇒ 0.345 M * 0.250 L = 0.0862 mol CH₃COOH

The number of CH₃COO⁻ moles will increase with the added moles of KOH while the number of CH₃COOH moles will decrease by the same amount.

Now we use the H-H equation to <u>calculate the new pH</u>, by using the <em>new concentrations</em>:

  • pH = 4.75 + log\frac{(0.0942+0.0613)mol/0.250L}{(0.0862-0.0613)mol/0.250L} = 5.54
6 0
3 years ago
g Oxidation refers to ________ Select one: a. an increase in oxidation number. b. a decrease in oxidation number. c. an increase
mihalych1998 [28]

Answer:

The correct alternative is "Option a".

Explanation:

Oxidation has become a mechanism whereby the physicochemical properties transform attributed to the formation of O₂.

  • The connection involving magnesium as well as O₂ requires the oxidation of the component named magnesium.
  • Even before exposed to the air, silicon is oxidized as well as generates silicon dioxide.

Other possibilities are not connected to the scenario in question. So Choice A is the best option.

4 0
3 years ago
Hot air balloons work due to a current moving heat energy around within the balloon. which heat energy transfer process is happe
miv72 [106K]

Answer:

Convection.

Explanation:

Why? This transfer of heat energy away from the ground by the vertical movement of air is called "free convection" or "natural convection." A hot air balloon rises because warmer air is less dense than cool air.                                                (plz brainlyest)

3 0
3 years ago
Read 2 more answers
Question 14 of 32
ser-zykov [4K]

The equilibrium expression for the reaction; C(s) + O₂(g) ------->CO₂(g) is [CO2]/[C] [O2] option C.

<h3>What is the equilibrium expression?</h3>

The equilibrium expression shows how much of the reactants are converted into products. If the equilibrium constant is large and positive, most of the reactants have been converted into products.

Thus, the equilibrium expression for the reaction; C(s) + O₂(g) ------->CO₂(g) is [CO2]/[C] [O2] option C.

Learn more about equilibrium constant:brainly.com/question/10038290

#SPJ1

6 0
2 years ago
List 3 Metals in the periodic table.
musickatia [10]
Chromium , silver, zinc...
6 0
2 years ago
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