1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vekshin1
3 years ago
13

List the compounds in decreasing boiling point order. ch3ch2ch3 ar ch3cn

Chemistry
1 answer:
leva [86]3 years ago
6 0

The boiling point depends on the strength of the intermolecular forces holding the molecules together. Greater the force, higher is the boiling point.

The intermolecular force increases in the order shown below:

ion-ion > H-bonding > dipole-dipole > London dispersion

CH3CN is a polar molecule with strong dipole-dipole forces

CH3CH2CH3 is non-polar held by london dispersion

Ar exist as a gas. It will have a lowest boiling point

Thus the order of decreasing b.pt is:

CH3CN > CH3CH2CH3 > Ar

You might be interested in
Draw the lewis structure of ch3nc; fill in any nonbonding electrons. Calculate the formal charge on each atom other than hydroge
jenyasd209 [6]

A visual representation of covalent bonding which represents the valence shell electrons in the molecule is said to be a Lewis structure. The lines represents the shared electron pairs and dots represents the electrons that are not involved in the bonding i.e lone pairs.

Number of valence electrons in each atom:

For Carbon, C = 4

For Hydrogen, H = 1

For Nitrogen, N = 5

The Lewis structure of CH_3NC is shown in the attached image.

The formula of calculating formula charge = FC = VE - NE- \frac{BE}{2}   -(1)

where, F.C is formal charge, V.E is number of valence electrons, N.E is number of non-bonding electrons and B.E is number of bonding electrons.

Now, calculating the formal charge:

For C on left side:

FC = 4 - 0- \frac{8}{2} = 0

For N:

FC = 5 - 0- \frac{8}{2} = +1

For C on right side:

FC = 4 - 2- \frac{6}{2} = -1

The formula charge of each atom other than hydrogen is shown in the attached image.


6 0
3 years ago
Octane (C8H18)reacts oxygen gas (O2) to form carbon dioxide and water
iren [92.7K]

Answer:

i believe this is true

Explanation:

5 0
3 years ago
a helium balloon has a volume of 2.95 liters at 25 c. the volume of the ballon decreased to 2.25 l after it is placed outside on
OleMash [197]

Answer:

The outside temperature is -45.8°C

Explanation:

When a gas keeps on constant its moles and its pressure, we can assume that volume will be increased or decreased as the T° (absolute T° in K).

V1 / T1 = V2 / T2

2.95L/298K = 2.25L / T2

(2.95L/298K ) . T2 = 2.25L

T2 = 2.25L . 298K / 2.95L

T2 = 227.2K

T°K - 273 = T°C

227.2K - 273 = -45.8°C

3 0
3 years ago
What is s phisical change
cestrela7 [59]
Physical change is where u change physically or on the "outside" hope this helps, have a great day!
3 0
3 years ago
Read 2 more answers
An artifact contains one-fourth as much carbon-14 as the atmosphere. how old is the artifact
Nikolay [14]
<h3><u>Answer;</u></h3>

= 11,460 years

<h3><u>Explanation;</u></h3>
  • <em><u>The half life of Carbon-14 is 5,730 years . Half life is the time taken by a radioactive material to decay by half of its original mass.  Therefore, it  would take a time of 5730 years for a sample of 100 g of carbon-14 to decay to 50 grams</u></em>

<em>The initial amount of carbon-14 in this case was 1 whole; thus; </em>

<em>1 → 1/2 →1/4</em>

<em>To contain 1/4 of the value, 2 half-lives have passed. </em>

<em>But, 1 half life = 5,730 years</em>

<em>Therefore; The artifact is is therefore: 2 x 5,730 </em>

<em>          = 11,460 years </em>

4 0
3 years ago
Read 2 more answers
Other questions:
  • Describe how you could show that an alkaline solution is formed when caesium reacts with water
    11·1 answer
  • Which one is denser? question 2 options: the earth (a solid object) the sun, which is about 300,000 times more massive than the
    11·1 answer
  • Use the collision theory to discuss how temp., concentration and surface area affect the rate of a chemical reaction?
    12·1 answer
  • The length of a desk is 3.5 feet. how many centimeters is the length
    11·2 answers
  • Is this statement true or false? Ammonia is a base. A. True B. False
    11·2 answers
  • What is the significance of the symbol of an element?
    7·2 answers
  • Making solutions is an extremely important component to real-life chemistry. If you make 3.00 L of a solution using 90.0 g of so
    7·1 answer
  • Which question can be answered by science? 1 which type of candy taste the best? 2 which backpack do students purchase most offe
    8·1 answer
  • What factors trigger the evolution of a species?
    10·2 answers
  • Which of the following is a unit of volume of solids?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!