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Lady bird [3.3K]
2 years ago
7

QUICK (lots of points) How many lone pairs are present in Xylene?!

Chemistry
2 answers:
Snezhnost [94]2 years ago
7 0

i dont think their are a exact number

Goryan [66]2 years ago
5 0

Oxygen typically has 4 non-bonding electrons (or 2 lone pairs). The full valence shell for oxygen is 8 and the number of electrons in bonds is 4. Therefore, the difference is 4. Table of the typical numbers of bonds and non-bonding electrons.


.....Is this the answer your looking for? kinda confused....If not please delete my answer so somebody can give you what you want! :)

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The volume of a gas is 650.ml at 1.14celsius what will the volume be at 75.0 Celsius?
Triss [41]

Answer: 42763ml

Explanation:

Using Charle's law

V1/T1=V2/T2

V1= 650ml

V2=?

T1= 1.14c

T2= 75c

Substitute the value

650/1.14=V2/75

Cross multiply

650×75=V2×1.14

V2= 650×75/1.14

V2= 42763.16ml

V2= ~42763ml

4 0
3 years ago
How does the sun get so hot.​
torisob [31]

Answer: Because it is a giant fire ball

4 0
3 years ago
Which response includes all of the following processes that are accompanied by an increase in entropy?
dlinn [17]

Answer:

1 and 3.

Explanation:

The entropy measures the randomness of the system, as higher is it, as higher is the entropy. The randomness is associated with the movement and the arrangement of the molecules. Thus, if the molecules are moving faster and are more disorganized, the randomness is greater.

So, the entropy (S) of the phases increases by:

S solid < S liquid < S gases.

1. The substance is going from solid to gas, thus the entropy is increasing.

2. The substance is going from a disorganized way (the molecules of I are disorganized) to an organized way (the molecules join together to form I2), thus the entropy is decreasing.

3. The molecules go from an organized way (the atom are joined together) to a disorganized way, thus the entropy increases.

4. The ions are disorganized and react to form a more organized molecule, thus the entropy decreases.

7 0
3 years ago
A liquid has an empirical formula CCl2, and a boiling point of 1 21 oC. When vapourised, the gaseous compound has a density of 4
Darya [45]

Based on the data given, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

<h3>How can molar mass of a gas be obtained from density, temperature and pressure?</h3>

The molar mass of a gas can be obtained from density, temperature and pressure using the formula below:

  • molar mass = density × molar gas constant × temperature/pressure

Molar gas constant, R = R = 0.082 L.atm/mol/K.

Temperature = 150 °C = 423 K

Pressure = 785 torr = 1.033 atm

density = 4.93 g/L

molar mass of gas = 4.93 × 0.082 × 423/1.033

molar mass of gas = 165.5 g/mol

Then, molecular weight of the gas = 165.5 amu

Therefore, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

Learn more about molar mass of a gas at: brainly.com/question/26215522

6 0
1 year ago
2Al+3Cl2⟶2AlCl3
Leviafan [203]

Answer:

7.335 moles of  Cl₂ are required to react with 4.89 miles of Al.

Explanation:

Given data:

Moles of Al = 4.89 mol

Number of moles of Cl₂ required = ?

Solution:

Chemical equation:

2Al + 3Cl₂    →   2AlCl₃

Now we will compare the moles of Al and chlorine from balance chemical equation.

                            Al           :         Cl₂

                             2           :           3

                            4.89      :         3/2×4.89 =7.335 mol

Thus, 7.335 moles of  Cl₂ are required to react with 4.89 miles of Al.        

8 0
2 years ago
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