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
Alexxx [7]
2 years ago
10

What is the predominant intermolecular force in the liquid state of each of these compounds: hydrogen fluoride (HF), carbon tetr

abromide (CBr4), and nitrogen trifluoride (NF3)? Force(s): Dipole-dipole Hydrogen Bonding Dispersion
Chemistry
1 answer:
telo118 [61]2 years ago
4 0

Answer:

HF - hydrogen bonding

CBr4 - Dispersion

NF3 - Dipole-dipole

Explanation:

Hydrogen bonding occurs when hydrogen is covalently bonded to a highly electronegative atom such as fluorine, chlorine nitrogen, oxygen etc. Hence the dominant intermolecular force in HF is hydrogen bonding.

CBr4 is nonpolar because the molecule is tetrahedral and the individual C-Br dipole moments cancel out leaving the molecule with a zero dipole moment hence the dominant intermolecular force are the dispersion forces.

NF3 has a resultant dipole moment hence the molecules are held together by dipole-dipole interaction.

You might be interested in
Medical diagnosis and ______ are common uses of radioactive elements in health care.
KengaRu [80]
<span>The half-life of Carbon 14 and radionuclides are used to estimate the absolute (versus relative) age of pre-history items </span>
6 0
2 years ago
I need help pls Where does it belong to?​
Daniel [21]
The answer is B. Fungi,Protists
6 0
2 years ago
The addition of 0.275 L of 1.62 M KCl to a solution containing Ag+ and Pb2+ ions is just enough to precipitate all of the ions
musickatia [10]

Answer:

The mass of PbCl₂ is 45.88 grams and the mass of AgCl is 16.48 grams.

Explanation:

As mentioned in the given question, the addition of 0.275 L of 1.62 M KCl is done in a solution that comprise Ag⁺ and Pb²⁺ ions so that all the ions get precipitated. Therefore, the moles of KCl present is,  

Moles of KCl = 0.275 L × 1.62 M = 0.445 moles

Now the reaction will be,  

Ag⁺ + Pb²⁺ + KCl ⇒ AgCl + PbCl₂ + 3K⁺

Now let us assume that the formation of x moles of AgCl and y moles of PbCl₂ is taking place.  

Therefore, mass of AgCl will be x × molecular mass, which will be equal to x × 143.32 grams = 143.32 x grams

Now the mass of PbCl2 formed will be,  

y × molecular mass = y × 278.1 grams = 278.1 y grams

Now the total precipitate will be,  

62.37 grams = 143.32 x + 278.1 y -----------(i)

Now as AgCl and PbCl₂ requires 1:2 ratio of KCl, this shows that x moles of AgCl will require x moles of KCl and y mol of PbCl₂ will require 2*y moles of PbCl₂. Therefore,  

x + 2y = total mass of KCl

x + 2y = 0.445 moles ------ (ii)

On solving equation (i) and (ii) we get,  

x as 0.115 and y as 0.165

Now the mass of AgCl will be,  

143.32 × 0.115 = 16.48 grams

The mass of PbCl₂ will be,  

278.1 × 0.165 = 45.88 grams.  

3 0
3 years ago
Adding copper or magnesium to aluminum creates an alloy that is _____. more flammable than magnesium heavier than steel stronger
Maksim231197 [3]

stronger than aluminum

5 0
2 years ago
Read 2 more answers
Plz help need this ASAP
Feliz [49]

Explanation:

option no 4 is correct answer

I hope is helpful

4 0
2 years ago
Other questions:
  • A compound contains 47.08% carbon, 6.59% hydrogen and 46.33% chlorine by mass. what is the empirical formula for the compound.
    11·1 answer
  • Which temperature and pressure are used as standards for gases?
    11·2 answers
  • True or false? a closed system interacts with the environment constanly?
    12·1 answer
  • A neutral atom possesses an atomic number of 13 and an atomic mass of 27. Three electrons are lost. From what region of the atom
    10·2 answers
  • What is the role of nitric acid during silver nitrate test for halide?​
    10·1 answer
  • What is the metric prefix for the factor 10^-9?
    13·1 answer
  • Diffusion is the movement of solutes from an area of
    6·2 answers
  • What is the process of a gas changing back into a liquid called<br><br> PLEASEEEEEE HELP MEEEEEEE
    7·2 answers
  • State three advantages of rusting<br><br><br>​
    11·1 answer
  • If the pressure of the gas is doubled while the volume is held constant, what happens to its temperature?.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!