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A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction:

soldi70 [24.7K]

Answer:

2.01V ( To three significant digits)

Explanation:

First we show the standard reduction potentials of Cu2+(aq)/Cu(s) system and Al3+(aq)/Al(s) system. We can clearly see from the balanced redox reaction equation that aluminium is the anode and was the oxidized specie while copper is the cathode and was the reduced specie. This observation is necessary when substituting values of concentration into the Nernst equation.

The next thing to do is to obtain the standard cell potential as shown in the image attached and subsequently substitute values of concentration and standard cell potential into the Nernst equation as shown. This gives the cell potential under the given conditions.

5 0

3 years ago

Why are there wires in circuits?what is their job/function?

ra1l [238]

To connect the parts of a circuit and transport electricity in it from one place to nother

3 0

3 years ago

Read 2 more answers

What element has 80 protons, 81 neutrons, 79 electrons?

Mariana [72]

Answer:

The element will be $^{161}_{80}X$

Explanation:

Given that,

Number of proton = 80

Number of neutron = 81

Number of electron = 79

We know that,

The atomic number is equal to the number of proton.

So, the atomic number is 80.

According to atomic number,

The element will be mercury.

We need to calculate the atomic mass

Using formula of atomic mass

$atomic\ mass=atomic\ number+number\ of\ neutron$

Put the value into the formula

$atomic\ mass=80+81$

$atomic\ mass=161$

We need to find the element

Using atomic mass and atomic number

$atomic\ mass\ number A=161$

$atomic\ number Z=80$

So, the element will be

$^{A}_{Z}X$

Put the value of A and Z

Hence, The element will be $^{161}_{80}X$

5 0

3 years ago

What volume (mL) of concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of

zalisa [80]

$❤Answer$

Volume of 106.9 mL from the concentrated solution should be taken and diluted to 350 mL.

⠀

Main I'd On Indian Brainly Is - HeartCrush

$⚡ Explantion$

We can use the formula. 

c1v1 =c2v2

Where c1 is the concentration and v1 is volume of the concentrated solution. 

c2 is the concentration

and v2 is the volume of the diluted solution to be prepared

9.00 M x V1 = 2.75 M x 350 mL

V1 = 106.9 mL

Volume of 106.9 mL from the concentrated solution should be taken and diluted to 350 mL.

3 0

2 years ago

1. carbon cycle

marin [14]

Explanation:

1. carbon cycle

all of the physical processes and chemical reactions that result in the movement of carbon between the biosphere (living forms) and the geosphere (water, earth, and atmosphere)

Carbon cycle is the cyclic movement of carbon in various form on earth. This process entails both physical and chemical processes that ensures that carbon moves in different spheres of the earth. Carbon is one of the most important element in life. It is the building block of most organic processes on earth.

2. carbon footprint

a calculation that considers an individual's contribution to the process of global warming based on activities leading to greenhouse gas production

Carbon footprint is important in mapping the quota of carbon emitted into the atmosphere

It is the amount of greenhouse gases contributed into the atmosphere by individuals.

3. global warming

an overall increase in world temperatures that may be caused by additional heat being trapped by greenhouse gases

It is the overall increase in global temperature. It has severe consequences.

Global warming results when greenhouse gases in the atmosphere traps outgoing radiation in an anomalous way.

4. greenhouse gas

components of the air mixture that trap infrared (heat) energy

Greenhouse gases are gases that prevents long wave radiation from leaving the earth surface. They absorb the gases in turn, warming occurs on earth.

Learn more:

Greenhouse gases brainly.com/question/4580761

#learnwithBrainly

4 0

3 years ago