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
Andrew [12]
3 years ago
8

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? What reaction takes place at the cathode?

Chemistry
1 answer:
klemol [59]3 years ago
5 0

Answer:

Copper ions are reduced into copper atoms.

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

Explanation:

During electrolysis,  the positive H⁺ and Cu⁺ ions move to the negative cathode and negative OH⁻ and Cl⁻ ions move to the positive anode.

At cathode, copper ions are preferentially discharged due to the low electromotive force required to discharge them compared to the hydrogen ion. The copper ions gain the two electrons lost by the chloride ions when the are discharged. (2 Cl⁻₍aq₎ → Cl₂₍g₎ + 2e⁻)

Thus the half equation is as follows:

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

You might be interested in
The equilibrium 2NO(g)+Cl2(g)⇌2NOCl(g) is established at 500 K. An equilibrium mixture of the three gases has partial pressures
Galina-37 [17]

Answer:

Kp = 41.53

Kc = 1.01

Explanation:

To calculate the equilibrium constant in terms of pressure, what we simply do is to use the equilibrium pressure raised to the power of the number of moles. What we are saying in essence is this:

Kp = [NOCl]^2/[NO]^2[Cl]

Kp= [0.25]^2/[0.174][0.093]^2 = 41.53

Kp = Kc (RT)^Dn

Hence, Kc = Kp/[RT]^(delta n )^-1

n = sum of the number of moles of products minus the sum of the number of moles of reactants= 2-3 = -1 in this case

Kc = 41.53/(0.0821 * 500)^1

Kc = 1.01

7 0
3 years ago
Read 2 more answers
a flight stimulator that helps astronauts prepare for a shuttle launch is an example of a (an) ______.
Dimas [21]
A flight simulator that helps astronauts prepare for a shuttle launch is an example of a Scientific Model.
3 0
4 years ago
Read 2 more answers
What is the difference between a real gas and an ideal gas?
DaniilM [7]
A gas is assumed to behave ideally if it follows the following assumptions:
Gas particles are very tiny so their volume is negligible. So they are considered that do not have a volume.Gas particles move at a constant motion, which means that they do not collide.Gas particles do not interact with each other, therefore, there will be no attraction or repulsion between each other.These are the main points of difference between an ideal gas and a real gas.
For a real gas, all these points are not valid, therefore:
Gas particles occupy a space and therefore have a volume.Gas particles collide with each other and their motion tends to speed up or slow down.Gas particles interact with each other.
3 0
3 years ago
An atom has the following electron configuration.
kherson [118]

Answer:

5 electrons

Explanation:

Valence electrons are electrons located in the outermost energy shell, so you want to count the number of electrons in the last energy shell.

You can divide the configuration into 1s2 / 2s22p6 / 3s23p3 to see the energy shells in this atom. There are 3 shells occupied by the atom's electrons, so you need to count the electrons in the third shell as those are its valence electrons.

2 + 3 = 5 valence electrons total

Note: you don't count the 3 before the letter because that only indicates the shell level, not the number of electrons. Count only the exponents.

5 0
4 years ago
Read 2 more answers
A sample of hydrogen nitrate or nitric acid, HNO 3 contains 18.8 x 1022 molecules.
IgorC [24]

Answer:

19.7 g.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to realize this problem can be solved by using a molecules-moles-mass relationship, starting with the given molecules, using the Avogadro's number and the molar mass of nitric acid (63.01 g/mol):

18.8x10^{22}molec*\frac{1mol}{6.022x10^{23}molec}* \frac{63.01g}{1mol} \\\\=19.7g

Regards!

6 0
3 years ago
Other questions:
  • Suppose 0.09886 M KOH is titrated into 15.00 mL H2SO4 of unknown concentration until the equivalence point is reached. It takes
    13·2 answers
  • Question 1 (True/False Worth 2 points) (04.03 LC) When Pb and AlCl3 react together, lead (Pb) can replace aluminum (Al) in the c
    7·2 answers
  • Using the diagram to answer the question.
    13·1 answer
  • Convert to moles: show work
    6·1 answer
  • What must be true for a circuit to light a bulb?
    9·2 answers
  • Is backbonding is possible in BF4- ? If no then why?
    8·1 answer
  • Help me out here please???
    13·2 answers
  • the respiratory system includes a layer of cells in the air passage that clean the air before it gets to the lungs.this layer of
    10·1 answer
  • The pH of a basic solution is 8.87. What is [H⁺]?
    9·1 answer
  • PLEASE HELP ASAP!!!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!