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Veronika [31]
3 years ago
15

At elevated temperatures, dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen:_________.

Chemistry
1 answer:
fgiga [73]3 years ago
7 0

Answer:

e. 4.1 x 10^−4

Explanation:

For the reaction;

2N2O5(g) → 4NO2(g) + O2(g)

The rate of formation is given as;

(1 / 4) Δ [O2] / Δt = (1 / 2 )Δ [N2O5] / Δt

Δ [O2] / Δt = 8.1 x 10^−4 M/s

Inserting into he equation, we have;

(1/4) (8.1 x 10^−4 ) = (1/2) (Δ [N2O5] / Δt)

2.025 x 10^−4 = (1/2) (Δ [N2O5] / Δt)

Δ [N2O5] / Δt = 2 * 2.025 x 10^−4

Δ [N2O5] / Δt  =  4.1 x 10^−4

Correct option is option E.

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3 years ago
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
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Given:
n = 12 moles of oxygen
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p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
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5 0
3 years ago
0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydr
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The volume of H₂ evolved at NTP=0.336 L

<h3>Further explanation</h3>

Reaction

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3 years ago
Why was the weight of the fire snake slightly less after it was lit on fire
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Answer:

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How many grams of sodium are in 0.820 moles of na2so4?
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<span>the molar mass of a compound is the sum of the products of the atomic masses by the number of atoms of the element.
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1 mol of </span>Na₂SO₄<span> has a mass of 142 g.
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Mass of Na in 1 mol of </span>Na₂SO₄ is - 46 g
                           
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mass of Na is 37.72 g
5 0
3 years ago
Read 2 more answers
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