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
MrRissso [65]
4 years ago
15

The cell potential for an electrochemical cell with a Zn, Zn2 half-cell and an Al, Al3 half-cell is _____ V. Enter your answer t

o the hundredths place and do not leave out a leading zero, if it is needed.
Chemistry
1 answer:
kap26 [50]4 years ago
3 0

Answer:

0.900 V

Explanation:

Oxidation half cell;

2Al(s) -----> 2Al^3+(aq) + 6e

Reduction half equation;

3Zn^2+(aq) + 6e ----> 3Zn(s)

E°anode = -1.66V

E°cathode= -0.76 V

E°cell= E°cathode - E°anode

E°cell= -0.76-(-1.66)

E°cell= 0.900 V

You might be interested in
A secondary step in the process to produce ultra-pure silicon is to combine silicon tetrachloride with magnesium. How many grams
mariarad [96]

The mass of silicon, Si produced from the reaction is 329.41 g

<h3>Balanced equation </h3>

SiCl₄ + 2Mg —> 2MgCl₂ + Si

Molar mass of SiCl₄ = 28 + (35.5×4) = 170 g/mol

Mass of SiCl₄ from the balanced equation = 1 × 170 = 170 g

Molar mass of Si = 28 g/mol

Mass of Si from the balanced equation = 1 × 28 = 28 g

From the balanced equation above,

170 g of SiCl₄ reacted to produce 28 g of Si.

<h3>How to determine the mass of Si produced </h3>

From the balanced equation above,

170 g of SiCl₄ reacted to produce 28 g of Si.

Therefore,

2 Kg (i.e 2000 g) of SiCl₄ will react to produce = (2000 × 28) / 170 = 329.41 g of Si

Thus, 329.41 g of Si were obtained from the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

8 0
3 years ago
The ocean has both deep currents and surface currents moving it around the Earth.
yulyashka [42]

Answer: 1

Explanation: This is true.

6 0
3 years ago
What would sunscreen look like if it absorbed all of the visible light that hit it?
Sati [7]

Answer:

i guess it would  become dark

Explanation:

4 0
3 years ago
Which of the following factors contribure
xxMikexx [17]
D. All of the above


Ground level ozone is created when sunlight reacts with certain chemicals that come from sources of burning fossil fuels, such as factories or car exhaust. When particles in the air combine with ozone, they create smog. Smog is a type of air pollution that looks like smoky fog and makes it difficult to see. Additionally, Cities located in basins surrounded by mountains may have smog problems because the smog is trapped in the valley and cannot be carried away by wind
6 0
3 years ago
g The gas phase decomposition of sulfuryl chloride at 600 K SO2Cl2(g) SO2(g) + Cl2(g) is first order in SO2Cl2 with a rate const
Alex_Xolod [135]

Answer : The concentration of SO₂Cl₂ after 720 min will be, 3.81\times 10^{-4}M

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 2.80\times 10^{-3}\text{ min}^{-1}

t = time passed by the sample  = 720 min

a = initial amount of the reactant  = 2.86\times 10^{-3}M

a - x = amount left after decay process = ?

Now put all the given values in above equation, we get

720=\frac{2.303}{2.80\times 10^{-3}}\log\frac{2.86\times 10^{-3}}{a-x}

a-x=3.81\times 10^{-4}M

Therefore, the concentration of SO₂Cl₂ after 720 min will be, 3.81\times 10^{-4}M

5 0
3 years ago
Other questions:
  • What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?
    9·1 answer
  • To what volume (in mL) would you need to dilute 25.0mL of a 1.45 m solution of Kcl to make a 0.0245m solution of KCl
    6·1 answer
  • which fossil occurs on the most landmasses?what does this suggest about when these particular continents broke up
    10·1 answer
  • The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?
    8·1 answer
  • What is the relationship between a weak acid and a buffer? Give me an example and explain how a weak acid can act as a buffer?
    9·1 answer
  • KOH + HBr - KBr + H2O<br> Which is the acid in this reaction?
    5·2 answers
  • Which of the statements below are TRUE, knowing what we know about forces and motion?
    10·1 answer
  • Which of the following is a way to increase the solubility of a solid in water? Select all that apply.(PLEASE HELP ME! THIS IS T
    9·2 answers
  • GIVING 20 POINTS!! Apply Concepts Two chemists each plan an investigation in which they will combine hydrogen gas with chlorine
    5·1 answer
  • Imagine if Rutherford conducted his scattering experiment, and his prediction about the movement of alpha particles held true Wh
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!