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
igomit [66]
3 years ago
12

How do you do problem bii??

Chemistry
2 answers:
morpeh [17]3 years ago
4 0

Answer:

\boxed{\text{(b) (ii) 0.34 V}}

Explanation:

If electrons flow from Pb to X through the external circuit, the Pb electrode must be the anode.

The standard reduction potential for Pb²⁺ is -0.126 V.

When we write the half-reaction for the oxidation, the standard oxidation potential for Pb must be 0.126 V.

The cell reactions are:

                                                     <u> E°/V  </u>

  Anode: Pb ⇌ Pb²⁺ + 2e⁻           0.126

Cathode: <u>X²⁺ + 2e⁻ ⟶ X         </u>    <u>       x</u>

Overall: Pb + X²⁺ ⟶ Pb²⁺ + X     0.47

0.126 + x = 0.47

x = 0.47 – 0.126 = 0.34 V

\text{The reaction at the X electrode is a reduction,}\\\text{so its standard reduction potential is }\boxed{\textbf{0.34 V}}

Advocard [28]3 years ago
3 0

Answer:

Explanation:

Trick question. The cathode is where the reduction reaction takes place. The reduction reaction is the gain of electrons.

Pb+2 + 2e^- ===> Pb        The eo for that is - 0.126.

The minus sign indicates that the Pb^2+ is not overjoyed at taking on those two electrons. If it had a say in the matter, it would rather be giving up electrons. In other words, it would rather be the oxidizing equation which would look like this

Pb ===> Pb+2 + 2e^- and the oxidizing potential would be eo = + 0.126

That's what moving right and moving left means. If the eo is - then the preferred reaction is the opposite one.

This is a real language problem and if Znk answers you can take his answer to the bank.

You might be interested in
How many lone pairs of electrons in lewis structure of CH3 OH
Brums [2.3K]
There would be 2 which would be on the oxygen
4 0
2 years ago
The balanced equation for water is 2 H2 + O2 to 2 H2O. If I have 21.2g of a product , and I started with 5.6 g of H2, how many g
ANTONII [103]

Since 21.2 g H2O was produced, the amount of oxygen that reacted can be obtained using stoichiometry. The balanced equation was given:  2H₂ + O₂ → 2H₂O and the molar masses of the relevant species are also listed below. Thus, the following equation is used to determine the amount of oxygen consumed.

Molar mass of H2O = 18 g/mol

Molar mass of O2 = 32 g/mol

21.2 g H20 x 1 mol H2O/ 18 g H2O x 1 mol O2/ 2 mol H2O x 32 g O2/ 1 mol O2 = 18.8444 g O2

<span>We then determine that 18.84 g of O2 reacted to form 21.2 g H2O based on stoichiometry. It is important to note that we do not need to consider the amount of H2 since we can derive the amount of O2 from the product. Additionally, the amount of H2 is in excess in the reaction.</span>

7 0
3 years ago
Write the chemical formula, condensed formula, and Lewis structure for each of the following hydrocarbons:
son4ous [18]

Explanation:

Here I send you all the 3 elements that you are asking for.

Notice that first on the left you will find lewis structure, then condensed and finally chemical formula of each of the compound you enlisted.

5 0
2 years ago
The vibration of which bond gives an IR absorption that distinguishes between the following two compounds? CH3 CH2 CH2 OH CH3 CH
liq [111]

Answer: 3500cm-1

Explanation: The -OH bond absorbs IR and vibrates at a characteristic and many times distinctive wave number of 3500cm-1. The -C=O would vibrate at 1700cm-1 though not clearly because -C-O bond typically vibrates around this point

7 0
3 years ago
Your neighbor has a beautiful garden that produces many different flowers all summer. How do you think he manages to have flower
storchak [24]
He uses the sunlight and and he uses water
7 0
2 years ago
Other questions:
  • How many molecules of BH3 are in 14.32 grams of BH3?
    10·1 answer
  • The isotope Np-238 has a half life of 2.0 days if 96 grams of it were present on Monday how much will remain six days later
    7·1 answer
  • A 0.085 M solution of a weak acid has a pH of 2.68. Determine the Ka value for this acid.
    6·1 answer
  • What is kinetic energy related to?
    10·2 answers
  • A substance that is uniform in composition, made up of two or more atoms in the same place, and NOT chemically combined is a ___
    10·2 answers
  • In an ionic bond, what do the electrons do in order to form the bond?
    9·1 answer
  • Janelle hikes along the beach every morning at the same time. Throughout the month, she notices the shoreline follows a pattern
    14·2 answers
  • PLEASE HELP QUICKLY THANK YOU
    8·2 answers
  • Can someone help me pls
    6·1 answer
  • Is a neutral particle a nucleus or electron cloud
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!