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Zinaida [17]
3 years ago
8

Why it is advisided to freshly prepare the ferrous sulphate solution for experiment

Chemistry
1 answer:
chubhunter [2.5K]3 years ago
5 0
Here is a site my buddie has to help you. Well co-owner..
https://www.quora.com/Why-is-fresly-prepared-FeSO4-required-for-the-ring-test
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Define "tides” in your own words.
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Answer:

the rising and falling of the surface of the ocean caused twice daily by the attraction of the sun and the moon

Explanation:

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Hydrogen has 3 isotopes 1 H 2 H and 3 H. What is the difference between these 3 isotopes
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Answer:

See below.

Explanation:

1 H (hydrogen) has  a nucleus of just 1 proton.

2 H (deuterium)  has a nucleus of 1 proton and 1 neutron

3 H (tritium) has a nucleus of 1 proton and 2 neutrons.

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An atom of aluminum in the ground state and an atom of gallium in the ground state have the same
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(4) total number of valence electrons, because they exist in the same group.
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Which of the following is not true concerning cover crops?
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The correct answer is: THEY ARE SOLD AS CASH CROPS.
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A gas with a volume of 8 L at a temperature of 473K is switched to a new container with a temperature of 350K. If the pressure r
Digiron [165]

Answer:

The new  volume is 5.92 L,  which is approximately 6 L

Explanation:

As the gas temperature increases, the molecules move faster and take less time to reach the walls of the container. This means that the number of crashes per unit of time will be greater. That is, there will be an increase (for an instant) in the pressure inside the container and the volume will increase.

So Charles's Law is one of the gas laws that relates the volume and temperature of a certain amount of gas at constant pressure and says that:

  • If the temperature increases the volume increases
  • If the temperature decreases the volume decreases

Mathematically this is expressed by:

\frac{V}{T}=k

When you want to study two different states, an initial and a final one of a gas, this law is expressed by:

\frac{V1}{T1} =\frac{V2}{T2}

In this case:

  • V1: 8 L
  • T1: 473 K
  • V2: ?
  • T2: 350 K

Replacing:

\frac{8 L}{473K} =\frac{V2}{350K}

Solving:

V2=350K*\frac{8L}{473K}

V2=5.92 L

<u><em>The new  volume is 5.92 L,  which is approximately 6 L</em></u>

5 0
3 years ago
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