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
Bad White [126]
3 years ago
10

Use the standard reduction potentials located in the Tables' linked above to calculate the equilibrium constant for the reaction

:
Cd^2+(aq) + H2(g) ----------->Cd(s) + 2H+(aq)
Chemistry
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

3.1 * 10^-14

Explanation:

Note that E°cell = 0.0592/n log K

We can obtain E°cell from the standard reduction potentials of cadmium and hydrogen

Anode reaction

H2(g) ----> 2H+ + 2e

Cathode reaction

Cd^2+(aq) + 2e -----> Cd(s)

E°cell = E°cathode - E°anode

E°cathode = –0.40 V

E°anode = 0 V

E°cell =  –0.40 V - 0 V

E°cell = –0.40 V

E°cell = 0.0592/n log K

Where n=2 electrons transferred

–0.40 = 0.0592/2 log K

–0.40 = 0.0296 log K

log K = –0.40/0.0296

log K = -13.5135

K = Antilog ( -13.5135)

K = 3.1 * 10^-14

You might be interested in
What is the density of a substance with a mass of 1.8 kg and a volume of 0.2 L?
horrorfan [7]

Answer:

<h3>The answer is 9.0 kg/L</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 1.8 kg

volume = 0.2 L

We have

density  =  \frac{1.8}{0.2}  \\

We have the final answer as

<h3>9.0 kg/L</h3>

Hope this helps you

5 0
3 years ago
I NEED HELP FAST!!!!! Can you tell me about the location of electrons in atoms and how energy affects their location??? I have a
Art [367]
Their locations can vary depending on the molecule they are associated with but they are usually in a "cloud " that is on the outside of an atom/molecule and if the atom is unstable the  electrons tend to be located farther away from the atom.
5 0
3 years ago
Is the osmotic pressure of a 0.10 M solution of NaCl greater than, less than, or equal to that of a 0.10 M solution of KBr?a. eq
jonny [76]

Answer:

a. equal to

Explanation:

The <em>osmotic pressure</em> is calculated by the formula:

π = <em>i</em> * M * R * T

Where π is the osmotic pressure, M is the concentration, R is a constant, T is temperature and <em>i</em> is the van't Hoff's factor (the number of ions a compound forms when dissolved in water,<u> for both NaCl and KBr is 2</u>).

Because R is always the same, and <u>Temperature and Concentration are equal between the two solutions</u>, the osmotic pressure of both solutions are also equal.

4 0
3 years ago
How many balance electrons does sodium have
PtichkaEL [24]

Answer:

1

Explanation:

6 0
3 years ago
Read 2 more answers
If the pressure in the room is 759.2 torr and the vapor pressure of water is 23.8 torr, what is the pressure of hydrogen gas in
Gwar [14]

The partial pressure of Hydrogen gas can directly be calculated by simply taking the difference of the overall pressure and the vapour pressure of water. That is:

 

P (H2 gas) = 759.2 torr – 23.8 torr

<span>P (H2 gas) = 735.4 torr</span>

6 0
3 years ago
Read 2 more answers
Other questions:
  • Combustion of hydrocarbons such as decane produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmospher
    6·1 answer
  • If two hydrogen (H) atoms combined to form a helium (He) atom, a ________ reaction has occurred.
    13·1 answer
  • How much heat energy is required to raise the temperature of 0.367 kg of copper from 23.0 C to 60.0 C ? The specific heat of cop
    13·1 answer
  • How much energy would need to be input to completely boil 17.3 moles of ice starting at 0 degrees * C and going to 100°C?
    6·1 answer
  • T/F. When a molecule contains three bonds and a single lone pair attached to the central atom, the molecular geometry is trigona
    10·1 answer
  • Why did scientists in the 1800s decide that the list of known elements needed to be more
    5·1 answer
  • Question 11 (5 points)
    14·1 answer
  • Question:
    10·1 answer
  • What is ionic bonding<br>​
    6·2 answers
  • 1. 2. LEVEL1 A. In each group, choose the objects that has the property given in brackets
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!