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 does cellular respiration identify as a combustion reaction?
Aleksandr-060686 [28]

reactions to break down glucose using oxygen to produce carbon dioxide, water and energy in the form of ATP. ... To balance the oxygen atoms for the reactant side, you need to count 6 atoms from the glucose.

7 0
3 years ago
a gas occupies 600.0 ml at 20.00 degrees C and 70.00kPa what will be the pressure at 40.00 degrees C and 150.0mL?
Zina [86]

Answer:

P₂ = 299.11 KPa

Explanation:

Given data:

Initial volume = 600 mL

Initial pressure = 70.00 KPa

Initial temperature = 20 °C (20 +273 = 293 K)

Final temperature = 40°C (40+273 = 313 K)

Final volume = 150.0 mL

Final pressure = ?

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₂ = P₁V₁ T₂/ T₁ V₂  

P₂ =  70 KPa × 600 mL × 313 K / 293K ×150 mL  

P₂ = 13146000 KPa .mL. K /43950 K.mL

P₂ = 299.11 KPa

4 0
2 years ago
Tokyo, Japan is 8817.6 km from california. How many milimeters is this? Answer in scientific notation.
Novosadov [1.4K]
8.8176*10^9
Hope this helps!
8 0
3 years ago
Give the ion notation for an atom with 34 protons and 36 electrons
alexandr402 [8]
Se - 78
Selenium - 78
or
78/34 Se2-
4 0
3 years ago
Give the IUPAC name for<br> Spell out the full IUPAC name of the compound.
Soloha48 [4]

Explanation:

Part A

Spell out the full name of the compound.

Part B

Spell out the full name of the compound.

Part C

Spell out the full name of the compound.

Part D

Spell out the full name of the compound.

IUPAC naming:

In organic chemistry, chemical compounds are named by a standardized method known as the IUPAC system. These four examples are all hydrocarbons with double and triple bonds. The names of the compounds are based on the length of the carbon chain, the position of the double or triple bonds and the position of any carbon groups branched off of the main chain.

5 0
2 years ago
Other questions:
  • In what type of reaction will an acid and a base react with each other
    5·2 answers
  • What are the chemical processes used to make chloroquine?
    9·1 answer
  • Will a horse galloping in a field produce and average velocity of zero
    11·1 answer
  • The length of time required for half of the radioactive atoms in a sample to decay is its. A. half-life. . B. relative date. . C
    10·1 answer
  • What is the difference between breccia rock and conglomerate rock
    15·1 answer
  • Five more than two times the square root of a number is fifteen. What’s the number
    14·2 answers
  • With respect to the categories of assets, liabilities, and stockholders' equity presented on the balance sheet (statement of fin
    5·1 answer
  • A few minerals are common but most are
    14·1 answer
  • If a gas has a molecular mass of 44.0, the volume of 88.0 grams of the gas at STP would be ..
    14·1 answer
  • Sodium peroxide (Na2O2) is often used in self-contained breathing devices, such as those used in fire emergencies, because it re
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!