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
vazorg [7]
3 years ago
5

In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions)

, which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, rank these compounds of their expected lattice energy..
Note: Many sources define lattice energies as negative values. Please rank by magnitude and ignore the sign. |Lattice energy| = absolute value of the lattice energy.
RbCl ,RbBr ,Rbl ,RbF
Chemistry
1 answer:
sammy [17]3 years ago
5 0

Answer:

RbF>RbCl>RbBr>RbI

Explanation:

Lattice energy depends largely on the internuclear distance between two oppositely charged ions in a crystal lattice. The smaller the both ions, the greater the lattice energy of the crystal.

In the case of the compounds listed above, the cation in all the compounds is the same but the anions have varrying sizes in the order I->Br->Cl->F-. Since the smaller the ion, the greater the lattice energy, the order of decreasing lattice energies stated in the answer is thus well rationalized.

You might be interested in
Three of Louis Pasteur discovery
konstantin123 [22]
Pasteurization, vaccines against antrax and rabies, discovered the germ fermentation
7 0
3 years ago
The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute th
MrRissso [65]

The question is incomplete, complete question is :

The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute the ratio of the reaction rate constants for these two reactions at 25°C.

\frac{K_1}{K_2}=?

Activation energy of the reaction 1 ,Ea_1 = 14.0 kJ/mol

Activation energy of the reaction 2,Ea_1  = 11.9 kJ/mol

Answer:

0.4284 is the ratio of the rate constants.

Explanation:

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

The expression used with catalyst and without catalyst is,

\frac{K_2}{K_1}=\frac{A\times e^{\frac{-Ea_2}{RT}}}{A\times e^{\frac{-Ea_1}{RT}}}

\frac{K_2}{K_1}=e^{\frac{Ea_1-Ea_2}{RT}}

where,

K_2 = rate constant reaction -1

K_1 = rate constant reaction -2

Activation energy of the reaction 1 ,Ea_1 = 14.0 kJ/mol = 14,000 J

Activation energy of the reaction 2,Ea_1  = 11.9 kJ/mol = 11,900 J

R = gas constant = 8.314 J/ mol K

T = temperature = 25^oC=273+25=298 K

Now put all the given values in this formula, we get

\frac{K_1}{K_2}=e^{\frac{11,900- 14,000Jl}{8.314 J/mol K\times 298 K}}=2.3340

0.4284 is the ratio of the rate constants.

7 0
3 years ago
Indicate which of the following statements is FALSE.a. Covalent bonds connect nucleotides in a strand; noncovalent interactions
LenaWriter [7]

Answer:

The false statement is d Avery,Macleod and McCarty showed that DNA is the genetic information of cells and RNA is the genetic information in the viruses .

Explanation:

Avery,Macleod and MacCarty showed that DNA is the genetic material of the cell.

     On the other hand Fraenkel, Conrat and Sanger carried out their experiment on tobacco mosaic virus to prove that RNA act as genetic material in some viruses.

8 0
3 years ago
Different organisms have different "habitats." These are all examples of habitats: The tops of banana trees in a rainforest The
Paul [167]

Answer:

Oxygen/Carbon dioxide

Explanation:

The basic description of living things are organisms which have a cell system to produce energy with either primarily via respiratory exchange abilities, by the existence .

The primal survival need for a possessing a habitat would have to be oxygen/carbon dioxide present,

I hope this was helpful.

5 0
3 years ago
Read 2 more answers
what is the molarity of a solution that has 1.54 moles NaCI in a 3.7L solution. How do you prepare 50ml of 0.5 M of KCI from a s
dsp73

Answer:

69jtententemwntsj6e

Explanation:

uegehwhb3iejebb

8 0
3 years ago
Other questions:
  • In a molecule of PCl3, 6 electrons will form
    9·1 answer
  • What symbol is used to show the standard reduction potential of an oxidation reaction in a half-cell?
    6·1 answer
  • Describe the meaning of the two parts of the name amino acid
    9·2 answers
  • Pentane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). If you mix pentane and oxygen in the correc
    14·1 answer
  • According to the graph, if you are in a biome where the annual precipitation is about 300 cm and the average temperature is arou
    11·1 answer
  • 18.07 Lab Acid Neutralization 1
    15·1 answer
  • Consider 55 mL of water (H2O) in a beaker and 55 mL of acetone [(CH3)2CO] in an identical beaker under identical conditions. Com
    12·1 answer
  • 7. Which word BEST describes symbiosis?
    12·1 answer
  • The person who answerers this will get 100 points pls answer all the question's
    6·1 answer
  • What is the most proactive functional group in chemistry?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!