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Svet_ta [14]
3 years ago
10

Temperature reaches

Chemistry
1 answer:
koban [17]3 years ago
7 0

Answer:

The pressure at 179 K is 21.8 kiloPascal.

Explanation:

To calculate the final pressure of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the nitrogen gas.

P_2\text{ and }T_2 are the final pressure and temperature of the nitrogen  gas.

We are given:

P_1=6.54 kPa\\T_1=537 K\\P_2=?\\T_2=179 K

Putting values in above equation, we get:

\frac{6.54 kPa}{537 K}=\frac{P_2}{179 K}\\\\P_2=2.18 kPa

The pressure at 179 K is 21.8 kiloPascal.

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Answer:

ethyl acetate layer

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This question tests your knowledge of the principle of solvent extraction.

In solvent extraction, there is always an organic layer and an aqueous layer. The ethyl acetate is the organic layer while the sodium bicarbonate is the aqueous layer.

A brominated aromatic compound will be extracted into the organic layer (ethyl acetate layer).

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Choose all the answers that apply. What do all cells do? reproduce contain hereditary information have a nucleus break down food
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contain hereditary information

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Explanation:

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4 years ago
How many moles of hydrogen are there, if there are 4 molecules of hydrogen?
Scorpion4ik [409]

Answer:

Explanation:

In this case, according to the Periodic table

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5 0
3 years ago
Q1. Briefly explain why the Zeff experienced by a valence electron in Cl is larger than in Mg. Q2. Briefly explain why the Zeff
Inessa05 [86]

Answer:

See explanation

Explanation:

Q1:

Chlorine has 17 protons while magnesium has only 12 protons. Recall that the Zeff depends on the size of the nuclear charge. The greater the size of the nuclear charge, the larger the Zeff experienced by a valence electron.

Q2:

The larger the Zeff, the smaller the atomic radius. Since the valence electrons of Cl experience a greater Zeff than those of Mg due to greater size of the nuclear charge, the atomic radius of chlorine will be smaller than that of Mg.

Q3:

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5 0
3 years ago
Add a temperature of -33.0 Celsius a sample of a confirmed gas eggs or to pressure of 0.5 to 6 ATM if it's volume remains consta
Levart [38]

<u>Answer:</u> The final temperature of the gas is -220.6°C

<u>Explanation:</u>

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=6atm\\T_1=-33^oC=[273-33]K=240K\\P_2=1.31atm\\T_2=?

Putting values in above equation, we get:

\frac{6atm}{240K}=\frac{1.31atm}{T_2}\\\\T_2=\frac{1.31\times 240}{6}=52.4K

Converting the temperature from kelvins to degree Celsius, by using the conversion factor:

T(K)=T(^oC)+273

52.4=T(^oC)+273\\\\T(^oC)=-220.6^oC

Hence, the final temperature of the gas is -220.6°C

3 0
4 years ago
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