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photoshop1234 [79]
3 years ago
11

A tightly sealed 5.0-l flask contains 781 mm hg of ar at 19 °c. the flask is heated until the pressure is doubled. what is the t

emperature of the gas?
Chemistry
1 answer:
sashaice [31]3 years ago
3 0
Get on mathpapa is shows you the answer and how to explain it
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Calculate the number of moles in the 2.1-L volume of air in the lungs of the average person. Note that the air is at 37.0ºC (bod
adelina 88 [10]
Answer: 0.0826mol

PV=nRT
n=PV/RT
n=(1atm)(2.1L)/(310K)(0.082057L*atm/mol*K)=0.0826mol
7 0
3 years ago
Ammonia is oxidized with air to form nitric oxide in the first step of the production of nitric acid. Two principal gas-phase re
nevsk [136]

Answer:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

2NO(g) + O₂(g) → 2 NO₂

Explanation:

First of all, we need to consider the reaction for production of ammonia. In this reaction we have as reactants, nitrogen and hydroge.

3H₂ (g) +  N₂(g)  →  2NH₃ (g)

Afterwards, ammonia reacts to oxygen, to produce NO and H₂O

The equation for the process will be:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

Then, we take the nitric oxide to make it react, to produce NO₂, in order to produce nitric acid, for the final reaction:

2NO(g) + O₂(g) → 2 NO₂

3NO₂(g) + H₂O(g) → 2 HNO₃ (g) + NO(g)

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3 years ago
Please help me out with this question
grigory [225]
C. Electrical conductivity, that means it can pass electricity through wires if needed, think of your phone charger as an example
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The process in which rock fragments freeze to the bottom of a glacier and then are carried away when the glacier moves is called
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Charlie is doing a scientific investigation about the properties of light energy. For his experiment, he points a flashlight at
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Answer:

it would be A.

Explanation:

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