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klio [65]
2 years ago
10

Calculate each of the following quantities: (g) Number of atoms in 0.0015 mol of fluorine gas

Chemistry
1 answer:
Inessa05 [86]2 years ago
8 0

1.81×10^{21} atoms are in 0.0015 mol of fluorine gas

<h3>What is fluorine?</h3>

The chemical element fluorine has an atomic number of 9 and the symbol F. The lightest halogen, it is an extremely poisonous, pale yellow diatomic gas under normal conditions. With the exception of argon, neon, and helium, it reacts with every other element, making it the most electronegative and reactive element.

Fluorine is the 24th most abundant element overall and the 13th most abundant on Earth. When added to metal ores to decrease their melting temperatures for smelting, fluorite, the main mineral source of fluorine that gave the element its name, was first recorded in 1529. The Latin word fluo, which means "flow," gave the mineral its name.

Learn more about fluorine

brainly.com/question/24373411

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Select the correct answer.
Vsevolod [243]

Answer:

B. Hydrogen

Explanation:

3 0
3 years ago
Read 2 more answers
How are the properties of elements determined
Andrew [12]
The properties of elements are determined by their group/family. Usually, its the area they are located on the periodic table. The valence electrons also determine reactivity, etc. 
4 0
4 years ago
Read 2 more answers
A gas in a piston–cylinder assembly undergoes a compression process for which the relation between pressure and volume is given
m_a_m_a [10]

Answer:

1.

A=69.8\frac{bar}{m^6}\\\\ B=0.00302bar*m^6

2. W=-8.2kPa

Explanation:

Hello,

1. In this case, for the given p-V equation, one could use the two states to form a 2x2 linear system of equations in terms of A and B:

\left \{ {{0.1^2A+0.1^{-2}B=1} \atop {0.04^2A+0.04^{-2}B=2}} \right.

\left \{ {{0.01A+100B=1} \atop {0.0016A+625B=2}} \right

Whose solution by any method for solving 2x2 linear system of equations (elimination, reduction or substitution) is:

A=69.8\frac{bar}{m^6}\\\\ B=0.00302bar*m^6

2. Now, for us to compute the work, we must first compute n, as the power relating the pressure and volume for this process:

P_1V_1^n=P_2V_2^n\\\\\frac{P_1}{P_2}=(\frac{V_2}{V_1}  )^n\\\\\frac{1bar}{2bar}= (\frac{0.04m^3}{0.1m^3}  )^n\\\\0.5=0.4^n\\\\n=\frac{ln(0.5)}{ln(0.4)} =0.7565

Now, we compute the work:

W=\frac{P_2V_2-P_1V_1}{1-n} =\frac{2bar*0.04m^3-1bar*0.1m^3}{1-0.7565} \\\\W=-0.082bar*m^3*\frac{1x10^2kPa}{1bar}\\ \\W=-8.2kPa

Regards.

8 0
3 years ago
Why is Newton's first law of motion important to science?
Lyrx [107]

Answer:

Newton's laws are very important because they tie into almost everything we see in everyday life. These laws tell us exactly how things move or sit still, like why you don't float out of bed or fall through the floor of your house.

Explanation: Newton's laws of motion are important because they are the foundation of classical mechanics, one of the main branches of physics. Mechanics is the study of how objects move or do not move when forces act upon them.

6 0
3 years ago
10.0 g of nickel is cooled to 2.0 °C and
Bas_tet [7]

Answer:

73.68 J

Explanation:

To find the energy absorbed by nickel, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy (J)

-----> m = mass (g)

-----> c = specific heat (J/g°C)

-----> ΔT = change in temperature

The change in temperature is found by subtracting the initial temperature from the final temperature. You can plug the given values into the equation and simplify to find the energy absorbed.

m = 10.0 g

c = 0.120 J/g°C

ΔT = 63.4 °C - 2.0 °C = 61.4 °C

Q = mcΔT

Q = (10.0 g)(0.120 J/g°C)(61.4 °C)

Q = 73.68  J

6 0
2 years ago
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