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MrMuchimi
1 year ago
14

Lennard-jones potential diagrams, also called intermolecular potential energy diagrams, illustrate the relationship between the

potential energy of a molecule as the distance between the two nuclei changes.
Select all of the true statements regarding Lennard-Jones potential diagrams.

Chemistry
1 answer:
amm18121 year ago
7 0

Statement 3, 5 and 6 are true statements regarding Lennard-Jones potential diagrams

What is lennard- jones potential diagrams

  • It describes potential energy of interaction between two non-bonding atoms or molecules based on their distance of separation.
  • It illustrates the relationship between potential energy of a molecule as the distance between the two nuclei changes.

Statement 3 ,5 and 6 are correct statements

  • When attractive forces are greater than repulsive forces, the two nuclei will continue to come closer.
  • When attractive forces are smaller than repulsive forces, the two nuclei will continue to go farther.
  • Once a balance is found between attractive and repulsive forces, an equilibrium distance called bond length is achieved.

Learn more about lennard- jones potential diagrams at brainly.com/question/13348153

#SPJ13

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At 100 degrees Celsius, the ion product for pure water is Kw= 51.3*10^-14. What is the pOH of water at this temperature? A) 7.00
Levart [38]

7.86 is the pOH of water at this temperature of 100 degrees celsius.

Option E is the right answer.

Explanation:

Data given:

Kw = 51.3 x 10^{-14}

pOH = ?

we know that pure water is neutral and will have pH pf 7.

The equation for relation between Kw and H+ and OH- ion is given by:

Kw = [H+] [OH-}

here the concentration of H+ ion and OH- ion is equal

so, [H+]= [OH-]

Putting the values in the equation of Kw

pKw = -log[Kw]

pKw = -log [51.3 x 10^{-14}]

pKw = 12.28

since H+ ion OH ion concentration is equal the pH of water is half i.e. 6.14

Now, pOH is calculated by using the equation:

14 = pOH + pH

14- 6.14 = pOH

pOH = 7.86

8 0
3 years ago
Which alkane is the isomer of butane called 2-methylpropane? A skeletal model of a 4-carbon chain has a straight line extending
solmaris [256]

Answer:

A three-carbon chain has a straight line extending from the center carbon.

Explanation:

Isomers are compounds having the same molecular formula but different structural formulas.

Butane and 2-methylpropane are constitutional isomers. Constitutional isomers differ in the way that the constituent atoms are connected to each other.

Butane is a straight chain compound while the compound 2-methylpropane consists of a three-carbon chain which has a straight line extending from the center carbon.

8 0
2 years ago
Read 2 more answers
What is the wavelength, in nm, of the light photon emitted by a hydrogen atom when an electron goes from n
xxMikexx [17]

Answer:

Hence, the wavelength of the photon associated is 1282 nm.

Explanation:

8 0
2 years ago
A 1.87 L aqueous solution of KOH contains 155 g of KOH . The solution has a density of 1.29 g/mL . Calculate the molarity ( M ),
Semenov [28]

Answer:        

[KOH] : 1.47 M

[KOH] : 1.22 m

[KOH]: 6.42 % mass percent.      

Explanation:

First of all we must determine the volume of solution. We have to work with the density

Density = mass / volume

1.29 g/ml = mass / 1870 ml

1.29 g/ml . 1870 ml = 2412.3

Now we must convert the mass to moles

155g / 56.1 g/ mol = 2.76 moles

Now we can calculate molarity

2.76 mol / 1.87 L = 1.47 M

To calculate molality we have to find out the mass of solvent

mass solute + mass solvent = mass solution

155 g + mass solvent = 2412.3 g

2412.3g - 155g = 2257.3g

We have to convert the 2257.3 g to kg

2257.3 g = 2.25 kg

molality = 2.76 moles / 2.25 kg = 1.22 m

To find out the % mass percentation, we have to calculate the mass of solute in 100 g of solution.

In 2412.3 g of solution we have 155 g of KOH

In 100 g of solution, we would have (100 . 155) / 2412.3 = 6.42 %mass percent.

7 0
3 years ago
What is the number at the end of an isotope’s name?
Taya2010 [7]

Explanation:

5 I don't know what is the answer if I got it wrong

8 0
2 years ago
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