Question

Consider only the species (at standard conditions) Br- , Br2, H+ , H2, La3+, Ca, Cd...

Consider only the species (at standard conditions) Br- , Br2, H+ , H2, La3+, Ca, Cd in answering the following questions. Give reasons for your answers. d. Which species can be reduced by Zn(s)?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer :-

For the given question we need to know standard Reduction potential of some species.

(1) Br - already in highest reducing state so no question for reduction.

(2) Br2 - Yes. As the reduction potential of Br2 is more than. So, Zn can able to reduced Br2.

(3) H+ - Yes. As the reduction potential of H+ is more Zn so Zn can able to reduced H+.

(4) H2 - No. H2 has the formal charge 0 (zero) and it is already in its stable oxidation state.

(5) La3+ - No. As the reduction potential of La is less than Zn.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The Standard Hydrogen Electrode (S.H.E.) consists of H2 gas bubbled through a solution of H+ ions;...
The Standard Hydrogen Electrode (S.H.E.) consists of H2 gas bubbled through a solution of H+ ions; which of the following conditions must be met to give E0 = 0.00V, as part of the S.H.E.? I. Temperature of cell is 298 K II. Pressure of the Hydrogen gas is 1 atm III. Concentration of H+ is 1.0 moldm-3 Select one: a. I and II only b. I and III only c. I only d. I, II and III Use the data...
A standard galvanic cell is constructed with Sn2+ | Sn and H+ | H2 half cell...
A standard galvanic cell is constructed with Sn2+ | Sn and H+ | H2 half cell compartments connected by a salt bridge. Which of the following statements are correct? a. Sn2+ is reduced at the cathode. b. In the external circuit, electrons flow from the H+|H2 compartment to the Sn2+|Sn compartment. c. Sn is oxidized at the anode. d. As the cell runs, anions will migrate from the H+|H2 compartment to the Sn2+|Sn compartment. e. The anode compartment is the...
Consider the following standard reduction potentials in acid solution at 25 °C: PbI2(s) + 2e- →...
Consider the following standard reduction potentials in acid solution at 25 °C: PbI2(s) + 2e- → Pb(s) +2I-(aq) Eºred = -0.365 V Ca2+(aq) + 2e- → Ca(s)    Eºred = -2.868 V Pt2+(aq) + 2e- → Pt(s)    Eºred = 1.18 V Br2(l) + 2e- → 2Br-(aq)    Eºred = 1.066 V Which one of the following is the strongest reducing agent? 1. Pb(s) 2. Ca(s) 3. Pt(s) 4. Br-(aq) 5. Pt2+(aq)
1)A standard galvanic cell is constructed in which a H+ | H2 half cell acts as...
1)A standard galvanic cell is constructed in which a H+ | H2 half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) a) H2 is oxidized at the cathode. b) The cathode reaction is 2H+ + 2e- -> H2 c) Mn2+|Mn could be the other standard half cell. d) Fe3+|Fe2+ could be the other standard half cell. e) In the external circuit, electrons flow...
Under standard conditions which of the following situations will give a spontaneous chemical reaction? A. Dioxygen...
Under standard conditions which of the following situations will give a spontaneous chemical reaction? A. Dioxygen is bubbled through an acidic solution of Fe2(SO4)3. B. Copper foil is placed in a solution of ZnCl2. C. Crystals of I2 are added to a solution of NaCl. D. Silver foil is placed in a solution of zinc nitrate. E. Dioxygen is bubbled through an acidic solution of FeSO4. Answer is D. Can someone help me with this? Thanks in advance. :) Consider...
Ecology Question: Consider the following scenario: For many years, the population size of Species 1 has...
Ecology Question: Consider the following scenario: For many years, the population size of Species 1 has consistently hovered around 100 individuals/km2 while Species 2’s population size has been approximately 50 individuals. Species 1 uses resources at one-quarter the rate of Species 2. Use the information to answer the following questions. a. Given the information available, sketch the Lotka-Volterra isocline diagram that best represents the scenario above. Don’t forget to label your graph. Are the populations of each species likely to...
1.         Write equilibrium (mass action) expressions for each of the following reactions: (a) H2(g) + I2(g)          2 HI...
1.         Write equilibrium (mass action) expressions for each of the following reactions: (a) H2(g) + I2(g)          2 HI (b)2 NO(g) + O2(g)           2 NO2(g) (c)N2(g) + 3 H2(g)           2 NH3(g) (d) CO(g) + NO2(g)           CO2(g) + NO(g) (e) 2 CO(g) + O2(g)             2 CO2(g) 2.    Write equilibrium expressions for each of the following equilibria: (a) 2 C(s) + O2(g)                  CO(g) (b) Zn2+(aq) + H2S(g)               ZnS(s) + 2 H+(aq) (c) HCl(g) + H2O()                  H3O+(aq) + Cl–(aq) (d)H2(g) +  O2(g)                   H2O(g) 3.         Which of the following is more likely to precipitate the hydroxide ion? (a)...
Question 1 Consider the following grammar G: S ➝ A B C | A C |...
Question 1 Consider the following grammar G: S ➝ A B C | A C | A | B A ➝ a B B ➝ b C | a C ➝ c D D ➝ d A Recall that a non-terminal A is reachable if there is a derivation starting from S in which A appears: S ⇒* x A y holds for some x and y which are sequences of terminals and non-terminals (possibly empty). For example, if there...
Which of the following reactions don't occur spontaneously and can be brought about only through electrolysis,...
Which of the following reactions don't occur spontaneously and can be brought about only through electrolysis, assuming that all reactants and products are in their standard states? (a) 2H2O(l)→2H2(g)+O2(g) [in 1 M H+(aq)] (b) Zn(s)+Fe2+(aq)→Zn2+(aq)+Fe(s) (c) 2Fe2+(aq)+I2(s)→2Fe3+(aq)+2I−(aq) (d) Cu(s)+Sn4+(aq)→Cu2+(aq)+Sn2+(aq) SubmitMy AnswersGive Up All attempts used; correct answer displayed Correct answer is a,c,d Part B For the reaction (a), what is the minimum voltage required? Express your answer to three decimal places and include the appropriate units. E∘cell = SubmitMy AnswersGive...
When benzene dissolves in water, it can be degraded by various bacteria species through redox reactions...
When benzene dissolves in water, it can be degraded by various bacteria species through redox reactions depending on which oxidizing agents answer the following questions: a. Draw the analogies between benzene degradation by bacteria and organic matter degradation by bacteria discussed in class. Under what conditions is benzene most effectively degraded by bacteria? It is given that the standard free energy change ΔG0 is related to redox potential E0 by the equation ΔG0=-nFEo, where n is the number of electrons...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT