Question
In: Chemistry
1. For the effect of concentration experiment, use the experimental standard cell potential, the experimental nonstandard...
1. For the effect of concentration experiment, use the experimental standard cell potential, the experimental nonstandard cell potential, and the known concentration of zinc of 0.10M to determine the concentration of copper in the solution. (Standard=1.046V, Nonstandard=0.897V, Theoretical=1.1V)
2. a. Write the balanced chemical equation for the dissolving of copper carbonate in water.
b. Write the equilibrium expression (Ksp) for the reaction in (a).
c. Using the experimental cell potential (0.211V), calculate the concentration of copper in the saturated solution.
d. Using your answer from (c), calculate the value of Ksp for copper (II) carbonate.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
(i) Use the information in the Resource section to calculate the standard potential of the cell...
(i) Use the information in the Resource section to calculate the
standard potential of the cell Ag(s)|AgNO3(aq)||Cu(NO3)2(aq)|Cu(s)
and the standard Gibbs energy and enthalpy of the cell reaction at
25°C.
(ii) Estimate the value of AG at 35 °C.
Determine the standard cell potential and the cell potential under the stated conditions for the electrochemical...
Determine the standard cell potential and the cell potential
under the stated conditions for the electrochemical
reactions described here. State whether each is spontaneous or
nonspontaneous under each set of conditions at
298.15 K.
(a) Hg(l) + S2-(aq, 0.10 M) + 2Ag+(aq, 0.25 M) ⟶ 2Ag(s) +
HgS(s)
(b) The galvanic cell made from a half-cell consisting of an
aluminum electrode in 0.015 M aluminum nitrate
solution and a half-cell consisting of a nickel electrode in 0.25 M
nickel(II) nitrate...
1) When the Ag+ concentration is 1.08 M, the observed cell potential at 298K for an...
1) When the Ag+ concentration is
1.08 M, the observed cell potential at 298K for an
electrochemical cell with the following reaction is
1.654V. What is the
Zn2+ concentration?
2Ag+(aq)
+ Zn(s) >
2Ag(s) +
Zn2+(aq)
Answer: ___ M
2) A concentration cell similar to the one shown is composed of
two Cr electrodes and solutions of different
Cr3+concentrations. The left
compartment contains 1.32 M
Cr3+, and the right compartment
contains 0.250 M
Cr3+.
Calculate the cell potential for this...
Experiment 2: Using the Secondary Standard to Determine the Concentration of an Acid 1. In an...
Experiment 2: Using the Secondary Standard to Determine the
Concentration of an Acid
1. In an Erlenmeyer flask, add 25 mL of Unknown
#1 concentration of acetic acid
(CH3COOH) and 2 drops
of phenolphthalein indicator.
2. Coarse Titration:
(a) Take a burette from the Containers shelf
and place it on the workbench. Fill the burette
with 50 mL of the standardized sodium hydroxide
solution. Record the initial burette reading.
Place the Erlenmeyer flaskon the lower half of the
burette.
(b)...
Experiment 2: Using the Secondary Standard to Determine the Concentration of an Acid 1. In an...
Experiment 2: Using the Secondary Standard to Determine the
Concentration of an Acid
1. In an Erlenmeyer flask, add 25 mL of Unknown
#1 concentration of acetic acid
(CH3COOH) and 2 drops
of phenolphthalein indicator.
2. Coarse Titration:
(a) Take a burette
from the Containers shelf and place it on the workbench. Fill the
burette with 50 mL of the standardized
sodium hydroxide solution. Record the initial
burette reading. Place the Erlenmeyer
flask on the lower half of the
burette....
Determine the cell potential and the equilibrium concentrations of the following concentration cell. Assume both cells...
Determine the cell potential and the equilibrium concentrations
of the following concentration cell. Assume both cells have the
same volume. Please see Concentration Cell for assistance. Cu |
Cu2+ (0.013 M) || Cu2+ (2.3 M) | Cu
E V
anode M
cathode M
The experiment is about whether the concentration of sodium bicarbonate will have an effect or not...
The experiment is about whether the concentration of sodium
bicarbonate will have an effect or not on the rate of
photosynthesis in spinach by recording the time taken by the leaf
disks to float in the sodium bicarbonate solution with different
concentrations (0.7% and 1.5%) as treatment groups and the
distilled water as the control group.
Is it possible for leaf disks to float in thecontrol group
(Distilled water)?
Why do you think the leaf disks floated at different times...
The experiment is about whether the concentration of sodium bicarbonate will have an effect or not...
The experiment is about whether the concentration of sodium
bicarbonate will have an effect or not on the rate of
photosynthesis in spinach by recording the time taken by the leaf
disks to float in the sodium bicarbonate solution with different
concentrations (0.7% and 1.5%) as treatment groups and the
distilled water as the control group.
Is it possible for leaf disks to float in thecontrol group
(Distilled water)?
Why do you think the leaf disks floated at different times...
1) Explain how a high salt concentration would affect the cell structure and growth of potential...
1)
Explain how a high salt concentration would affect the cell
structure and growth of potential pathogens on a food product.
2) Define the term optimum temperature. What would you expect
of the growth rate at this temperature compared to just below the
maximum temperature? How do these growth conditions affect the
bacterium (what is starting to happen within the cell.)
What is the standard cell potential, E°cell, for the spontaneous voltaic cell made by coupling a...
What is the standard cell potential, E°cell, for the
spontaneous voltaic cell made by coupling a Ca+2|Ca
(E°red=-2.756V) half-cell and a Al+3|Al
(E°red=-1.662V) half-cell? Report your answer in volts,
V.
Please show where you get the numbers, and write clearly please
:)
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