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
ella [17]
2 years ago
10

A student constructs a galvanic cell that has a strip of iron metal immersed in a solution of 0.1M Fe(NO3)2 as one half-cell and

a strip of aluminum metal immersed in a solution of 0.1M Al(NO3)3 as the other half-cell. The measured cell potential is less than zero when the positive terminal of the voltmeter is attached to the aluminum strip and the negative terminal is attached to the iron strip. Which half-cell is the anode (Fe or Al)?
Chemistry
1 answer:
MrMuchimi2 years ago
4 0

Answer:

Fe

Explanation:

The cell potential is:

ΔE°cell = E°red(red) - E°red(oxid)

Where, E°red(red) is the reduction potential of the substance that is reducing, and E°red(oxid) is the reduction potential of the substance that is oxidizing. For the reaction be spontaneous and happen, ΔE°cell > 0.

The reduction takes place in the cathode, which is the negative pole, and the oxidation in the anode, which is the positive pole. So, the electrons flow from the positive pole to the negative pole (anode to cathode).

Then, if the voltmeter measured a negative potential, it means that is was attached incorrectly. So, the anode is Fe.

You might be interested in
1. What processes change sediments into a sedimentary rock?
Vanyuwa [196]
For sediments to become a sedimentary rock, it usually undergoes burial, compaction, and cementation. (Hope that helps)
6 0
2 years ago
Hello, do these calculations using table 1 look correct? Thank you
slega [8]

Answer:

yes it does look correct. good job.

7 0
1 year ago
The wave mechanical model of the atom is required to explain the
dlinn [17]

The wave-mechanical model of the atom is required to explain the spectra of elements with multi electron atoms.

<u>Explanation:</u>

Wave mechanical theory say that every electron surrounding a nucleus occupies a certain orbit and moves in a certain direction, but the orbit is like a wave of energy or cloud but not a ring. It was proposed in the 1920s, when scientists Erwin Schrodinger and Louis Victor de Broglie concluded that the Bohr’s model is not suitable for electron location determination.

Based on many assumptions, scientists began to guess as accurately as possible about the behaviour of electrons at different energy levels around the nucleus. Because all electrons are negatively charged, they tend to push their elbows when they are too close together, moving away and changing direction. Each plane has one or more orbits that have more than one electrons that move around the nucleus in a specific patterns or shape.

7 0
3 years ago
What is the angle between the carbon-sulfur bond and the carbon-nitrogen bond in the thiocyanate ( SCN− ) ion?
dexar [7]
I’m not completely sure
6 0
2 years ago
Read 2 more answers
Several alkene compounds are given below. indicate if each compound can exist as stereoisomers.
Arturiano [62]
The compounds are missing. It will be helpful instead if you know what are stereoisomers. <span>Two molecules are described as stereoisomers of each other if they are made of the same </span>atoms<span>, connected in the same sequence, but the atoms are positioned differently in space in which the difference between two stereoisomers can only be seen when the three dimensional arrangement of the molecules is shown.</span>
6 0
3 years ago
Other questions:
  • Chromium (iii)hydroxide
    5·1 answer
  • An average tornado has a pressure of around 630 torr. What is this equivalent to in mmHg, atm and kPa? Show your work.
    5·1 answer
  • Name the type of equation shown here:
    15·2 answers
  • Calculate the enthalpy of combustion of 1 mol decane, C10H22, (l), to form CO2 and H2O. ∆Hf0 for decane is —300.9 kJ/mol using t
    8·1 answer
  • Please help!!!!
    9·2 answers
  • Should couples wanting to start a family undergo genetic testing to minimize risk to their offspring
    15·1 answer
  • How many valence electrons does Nitrogen have?​
    10·1 answer
  • Every atom of the __ carbon has six protons
    13·2 answers
  • 10 points
    7·1 answer
  • 4 possible careers in chemistry and place of application
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!