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
spayn [35]
2 years ago
5

5. Given the cell notation Cu(s)|Cu2+(aq)||Ag+(aq)|Ag(s), what is the half-reaction that occurs at the anode?

Chemistry
2 answers:
KATRIN_1 [288]2 years ago
5 0

Answer:

1) The half-reaction that occurs at the anode is :

Cu(s)\rightarrow Cu^{2+}+2e^-

2)+0.60 V is the E° for the spontaneous reaction.

Explanation:

1)

Oxidation reaction is defined as the reaction in which an atom looses its electrons.

Reduction reaction is defined as the reaction in which an atom gains electrons. Here, the oxidation state of the atom decreases.

Oxidation reaction occurs at anode.

Oxidation half reaction:

Cu(s)\rightarrow Cu^{2+}(aq)+2e^-

Reduction reaction occurs at cathode.

Reduction half reaction:

Ag^{+}(aq)+e^-\rightarrow Ag(s)

Net reaction: Cu(s)+2Ag^{+}(aq)\rightarrow Cu^{2+}(aq)+2Ag(s)

2)

Reduction potential of nickel(II) ions to nickel = E^o_{Ni^{2+}/Ni}=-0.26 V

Reduction potential of copper (II) ions to copper = E^o_{Cu^{2+}/Cu}=0.34 V

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{red,cathode}-E^o_{red,anode}

Substance with higher or positive reduction potential goes on cathode and substance with lower of more negative reduction potential goes on anode.

Putting values in above equation, we get:

E^o_{cell}=0.34 V-(-0.26)=0.60 V

+0.60 V is the E° for the spontaneous reaction.

Nataly_w [17]2 years ago
3 0

What is [H+] given that the measured cell potential is -0.464 V and the anode reduction ... What half-reaction occurs at the cathode during the electrolysis of molten ... PbO2(s) + 4H+(aq) + SO42-(aq) + 2e- → PbSO4(s) + 2H2O(l); E° = 1.69 V .... For the cell Cu(s)|Cu2+||Ag+|Ag(s), the standard cell potential is 0.46 V. A cell ... hopw this helps

You might be interested in
you are exploring the properties of a piece of matter you cut it in half several times which property of matter changes
Lapatulllka [165]
Only Extensive properties of piece will be changed. i.e Mass, Volume, Length etc.
3 0
2 years ago
Describe the Rutherford model... and and what are its limitation...<br><br>going offline forever ✌️​
SashulF [63]

Answer:

Limitations of Rutherford Atomic Model

Although the Rutherford atomic model was based on experimental observations it failed to explain certain things. Rutherford proposed that the electrons revolve around the nucleus in fixed paths called orbits. ... Ultimately the electrons would collapse in the nucleus.

8 0
2 years ago
Which item has the most thermal energy?
Ksju [112]

Answer:

1L of hot water just below the Boling point

Explanation:

asking questions is best to learn please ask more questions

3 0
3 years ago
Read 2 more answers
Valence Bond theory predicts that tin will use what hybrid orbitals in Snf5 -1​
LUCKY_DIMON [66]

Answer:

sp3d

Explanation:

The ground state electronic configuration of tin is written as; [Kr] 5s²4d¹⁰5p². Hybridization is a concept used to explain the combination of orbitals of appropriate energy to produce suitable orbitals that could be used for bonding.

In forming the compound Snf5^ -1, we have to hybridize the following orbitals on tin; 5p, 5d and 6s orbitals. This gives us a set of sp3d hybrid  hence the answer.

6 0
2 years ago
2.6(b) A sample of 2.00 mol CH3OH(g) is condensed isothermally and reversibly to liquid at 64°C. The standard enthalpy of vapori
Sophie [7]

Answer:

The value of W is 5.602 kJ, Q is -70.6 kJ, change in U is -65 kJ, and change in H is -70.3 kJ.

Explanation:

Based on the given information, the mass of CH3OH given is 64 grams, which is condensed isothermally and reversibly to liquid at 64 degrees C. The given standard enthalpy of vaporization of methanol at 64 degrees C is 35.3 kJ per mole.

The moles of CH3OH can be determined by using the formula,  

Moles = Mass / Molar mass

= 64.0 grams / 32.0 grams per mole

= 2 mol

The amount of energy given by the process of condensation is,  

ΔH = 2 mol × 35.3 kJ/mol = 70.6 kJ

In condensation heat is given off, thus, it is an exothermic process, hence, q will be -70.6 kJ

The work or W can be calculated by using the formula,  

W = -P ΔV

Let us first find the volume of 2.0 mole gas at 64 °C, or 64 + 273 = 337 K,  

PV = nRT

V = nRT/P

= 2 mol × 0.08206 L atm per mol K × 337 K/1 atm

= 55.3 L

As the liquid condenses in the process, the change in volume would be negligible. So, the volume change will be -55.3 L

W = - 1 atm × - 55.3 L

W = 55.3 L.atm

W = 55.3 L.atm × 101.3 J/1 L atm = 5602 J

W = 5602 × 1 kJ / 1000 J = 5.602 kJ

W = 5.602 kJ

Now U can be calculated using the formula,  

U = q + W

= -70.6 kJ + 5.602 kJ

= -65. kJ

Thus, q = -70.6 kJ, W = 5.602 kJ, U = -65 kJ, and ΔH = -70.3 kJ.  

4 0
3 years ago
Other questions:
  • How many grams of aluminum will be produced if 21.3g of Ba react with 19.7g of Al2 (SO4)3
    14·1 answer
  • Which of the following nuclei would be the most stable?
    15·1 answer
  • Coffee is a solution of organic substances in water
    13·1 answer
  • Which element is oxidized in the reaction below? fe(co)5 (l) + 2hi (g) → fe(co)4i2 (s) + co (g) + h2 (g)
    7·1 answer
  • The metal is easily shaped and does not ....... with water
    9·2 answers
  • If you have a sample of honey that has a mass of 20 grams what is the volume
    9·1 answer
  • When 100 mL of 1.0 M Na3PO4 is mixed with 100 mL of 1.0 M AgNO3, a yellow precipitate forms and [Ag ] becomes negligibly small.
    15·1 answer
  • 1- DILUTIONS What will the volume be of a solution created using 120 mL of 4.50 M stock solution if the final molarity needs to
    11·1 answer
  • Use the chemical equation and the bond diagram to answer the question.
    12·1 answer
  • Control rods in a nuclear reactor...
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!