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baherus [9]
2 years ago
5

A sample of ideal gas is in a sealed container. The pressure of the gas is 705 torr , and the temperature is 19 ∘C . If the temp

erature changes to 62 ∘C with no change in volume or amount of gas, what is the new pressure, P2, of the gas inside the container?
Chemistry
1 answer:
posledela2 years ago
8 0
808.77torr or 1.064atm
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What is the radius of a hydrogen atom whose electron is bound by 0.544 ev? express your answer with the appropriate units?
insens350 [35]
First, we need to calculate the principal quantum number n for this electron, using the equation:
E = (-13.60 eV) / (n x n)
where E is the energy that is used to bound the electron (here, E = - 0.544 eV).
- 0.544 eV = (-13.60 eV) / (n x n)
n x n = (- 13.60 eV) / (- 0.544 eV)
n x n = 25
n = 5

The orbital radius that is equal to the radius of a hydrogen atom is calculated using the equation:
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r = 0.053 nm x 5 x 5
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3 years ago
Why would you need a locating agent in an experiment to separate amino acids by chromatography
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A locating agent is needed in an experiment to separate amino acids by chromatography as it helps to analyze colorless substances on paper.

<h3>What is chromatography?</h3>

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In paper chromatography, colorless compounds are examined using a locating agent.

It is a chemical that combines with colorless substances to produce colorful compounds that are easy to see for analysis. Ninhydrin spray is an example of a locating agent of this type.

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5 0
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Dennis_Churaev [7]

Answer:A property that changes if the amount of substance changes

Explanation:

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