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
Vinil7 [7]
2 years ago
11

3. What mass of copper could be deposited from a copper(II) Sulphate solution using a current of 5.0 A over 100 seconds? ( F =96

,500C,Charge of Cu in CuSO4 = +2)​
Chemistry
1 answer:
arsen [322]2 years ago
8 0

Mass of copper : 0.165 g

<h3>Further explanation</h3>

Given

5.0 A over 100 seconds

Required

Mass of copper

Solution

Faraday's law:

<em>The mass of the substance formed at each electrode is proportional to the electric current flowing in the electrolysis</em>

<em />\tt W=\dfrac{e.i.t}{96500}<em />

e = Ar / valence = eqivalent weight

i = current

t = time

W = weight

CuSO₄ ----> Cu²⁺ + SO₄²⁻

Cu ----> Cu²⁺ + 2e

e = Ar/2

= 63,5/2 = 31,75

\tt W=\dfrac{31.75\times 5\times 100}{96500}=0.165~g

You might be interested in
How many moles of sodium atoms do you have if you have 5.60 ~
Papessa [141]

Answer:

0.93 mol

Explanation:

Given data:

Number of moles of Na atom = ?

Number of atoms = 5.60× 10²³

Solution:

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

5.60× 10²³ atoms ×  1 mol / 6.022 × 10²³ atoms

0.93 mol

3 0
3 years ago
Summarize why the carbon cycle supports the Law of Conservation of Matter
sasho [114]
The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle. ... Carbon is used for energy, and some is stored for growth.
8 0
3 years ago
A scientist discovered a microscopic unicellular organism with no nucleus which of the following correctly describes the organis
boyakko [2]
The correct option is this: THE ORGANISM IS A PROKARYOTES.
There are basically two types of cells, prokaryotic and eukaryotic cells. The prokaryotic cells are primitive cells which contain only a few materials which are not well organised. This type of cells is usually found in microscopic organisms. The cells lack organised nucleus and cell organelles which have membranes.<span />
7 0
3 years ago
Read 2 more answers
Figuring out how to make a better type of plastic is which type of research
quester [9]

Answer:applied chemistry

5 0
3 years ago
Read 2 more answers
I need help on this question
uranmaximum [27]

Answer:

When a front passes over an area, it means a change in the weather. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.

Explanation:

Plz make me brainliest :)

Have a nice day

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of ethylene can react with 12.9 l of oxygen gas at 1.2 atm in 297 k
    13·1 answer
  • This element:
    6·1 answer
  • 2KClO3 2KCl + 3O2
    12·1 answer
  • How many milliliters of 0.183 m hcl would be required to titrate 5.93 g koh?
    7·1 answer
  • What are the terms: organic compound and organic chemistry?
    8·1 answer
  • What do you think would happen if you had a very small amount of water in a glass and you
    15·1 answer
  • How many moles of propane (C3H8) are in a 7.00-L tank at 20.0°C and 5.45 atm of pressure?
    6·1 answer
  • Select the correct answer.
    9·1 answer
  • A gaseous fossil fuel produced from organic matter that is used to heat homes and cook
    12·1 answer
  • Heat transfer between two substances is affected by specific heat and the chemical composition of the substances. state of matte
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!