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
alekssr [168]
3 years ago
15

Approximately how many moles of Al3+ are reduced when 0.1 faraday of charge passes through a cell during the production of Al? (

Note: Assume there is excess Al3+ available and that Al3+ is reduced to Al metal only.)
A. 0.033 molB. 0.050 molC. 0.067 molD. 0.10 mol
Chemistry
1 answer:
Natali [406]3 years ago
6 0

Answer:

0.033 mol

Explanation:

1 faraday is require to  1 mol of electron

0.1 faraday is required for 0.1 mol of electron

3 mol of electron is required for 1 mole Al3+ to Al

0.1 mole of electron will therefore need ( 0.1 mol × 1 mol ) / 3 mol = 0.033 mol

You might be interested in
A gas at 750 mmhg and with a volume of 2. 00 l is allowed to change its volume at constant temperature until the pressure is 600
Gemiola [76]

Answer:

The new volume of a gas at 750 mmhg and with a volume of 2. 00 l when allowed to change its volume at constant temperature until the pressure is 600 mmhg is 2.5 Liters.

Explanation:

Boyle's law states that the pressure of a given amount of gas is inversely proportional to it's volume at constant temperature. It is written as;

P ∝ V

P V = K

P1 V1 = P2 V2

Parameters :

P1 = Initial pressure of the gas = 750 mmHg

V1 = Initial pressure of the gas = 2. 00 Liters

P2 = Final pressure of the gas = 600 mmHg

V2 = Fimal volume of the gas = ? Liters

Calculations :

V2 = P1 V1 ÷ P2

V2= 750 × 2. 00 ÷ 600

V2 = 1500 ÷ 600

V2 = 2.5 Liters.

Therefore, the new volume of the gas is 2. 5 Liters.

8 0
1 year ago
During an endothermic phase change, what happens to the potential energy and the kinetic energy?
antiseptic1488 [7]

During endothermic phase change, the potential energy of the system always increases while the kinetic energy of the system remains constant. The potential energy of the reaction increases because energy is been added to the system from the external environment.

<u>Explanation</u>:

  • Those are three distinct methods for demonstrating a specific energy condition of an object. They don't affect one another.
  • "Potential Energy" is a relative term showing a release of possible energy to the environment. If we accept its pattern as the overall energy state of a compound, at that point, an endothermic phase change would infer an increase in "potential" as energy is being added to the compound by the system.
  • A phase change will display an increase in the kinetic energy at whatever point the compound is transforming from a high density to a low dense phase. The kinetic energy will decrease at whatever point the compound is transforming from a less dense to high dense phase.
4 0
2 years ago
Read 2 more answers
2 points
Drupady [299]

Answer: The ratio of carbon to bromine atoms  in the molecule is 3:1

Explanation:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. It can be decomposed into simpler constituents using chemical reactions.

Chemical formula shows the elements in a compound and the relative proportions of those elements.

The chemical formula given for the compound is C_3H_6BrCl which means the ratio of carbon to bromine atoms is 3: 1.

Thus the ratio of carbon to bromine atoms  in the molecule is 3:1

7 0
3 years ago
What is a control group?
Arte-miy333 [17]

Answer:

A control group is someone who takes control over something so a tyrant or a dictator.

Explanation:

If this isnt what your looking for let me know, there wasnt alot of context.

8 0
3 years ago
Read 2 more answers
Why do plant cells need both chloroplasts and mitochondria?
nevsk [136]
They both perform photosynthesis and also cell respiration
4 0
2 years ago
Read 2 more answers
Other questions:
  • Jade(a green gemstone) has a density of 3.6g/ml. If a sample displaces 35.5mL of water, what is the jades's mass?
    9·2 answers
  • HELP PLZ ASAP... I'M CONFUSED :(
    10·2 answers
  • What is the particle unit for SO42-?
    15·2 answers
  • 1. Explain what it means when we say a substance is magnetic. (HINT: Be sure to mention the role of the Electrons)
    5·1 answer
  • According to the following thermochemical equation, if 951.1 g of NO 2 is produced, how much heat is released at constant pressu
    13·1 answer
  • HELP ASAP!!!!!!!!!!! * worth 35 points + brainliest *
    11·2 answers
  • How many molecules are there in 122 grams of Cu(NO3)2?
    6·1 answer
  • Name one material needed for<br> photosynthesis?
    13·2 answers
  • How far above earth is the international space station
    5·1 answer
  • If 167 cm2 of leather is stitched together to make a baseball, what is the radius of the baseball?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!