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
docker41 [41]
2 years ago
7

a 1.00-l solution contains 2.50×10-4 m cu(no3)2 and 1.20×10-3 m ethylenediamine (en). the kf for cu(en)22 is 1.00 × 1020. chegg

Chemistry
1 answer:
Debora [2.8K]2 years ago
4 0

The concentration of copper in the solution is

5.1 \times 10^{18}  \: M.

The volume of the solution = 1.00 L

Moles \: of \:Cu(NO_{3}) _{2} = 2.50 \times 10 {}^{ - 4}

Moles \:  of  \: Ethylenediamine = 1.20 \times 10.3

k _{f} = 1.00 \times 10^{20}

Overall balanced equation of reaction is,

Cu^{2 + }(aq)  \:  + 2en \: (aq)→ Cu(en) ^{2 + }_{2}(aq)

Moles \: of \:Cu(NO_{3}) _{2} =0.00025 \: mol

Mole ratio for,

Moles \: of\:Cu(NO_{3}) _{2}: en

2: 1

Moles \: of \: en = 0.000250 \times 2

= 0.00050 \: moles

Remained moles of en are= (0.00120-0.000500)

= 0.000700 \: moles

The concentration of copper in the solution is,

k_{f} =  \frac{Cu(en)^{2 + }_{2}  }{Cu^{2+}en^{2}  }

1.00 \times 10 ^{20} =  \frac{0.000250}{(Cu )^{2 +}  \times (0.000700)^{2 + } }

=  5.1 \times 10^{18}  \: M.

Therefore, the concentration of copper in the solution is

5.1 \times 10^{18}  \: M.

To know more about molarity, refer to the below link:

brainly.com/question/8732513

#SPJ4

You might be interested in
Do scientists believe that an Atom is made up of elements
Marina86 [1]

vice versa: atoms are elements, so elements are made of atoms specifically 1 atom or multiple of the same kind

5 0
2 years ago
Do you think a mutation (created during reproduction) in one gene is likely to result in a new trait in an offspring? Why or why
Mashutka [201]

Answer:

Yes and no

Explanation:

It can be silent or neutral mutation that has no effect on the structure or functioning of the organism

OR

It can be a useful (advantageous to the organism)

or a harmful mutation (causes genetic disorders)

8 0
2 years ago
Please help me out with this question if you help me I will give you the brain thing and extra points. 5/9 image below.
nikklg [1K]

Answer:

Third Law of motion. (answer C)

Explanation:

This is an example of Newton's Third Law of motion which normally translates into Action/Reaction. That is : the expelled air exerts a force in the direction opposite to that of the motion of the air that goes out. It is the same as propulsion in a rocket.

4 0
3 years ago
Read 2 more answers
5. (10 Points) Write a synthesis reaction where one of the reactants is aluminum.
fgiga [73]

Answer:

A reaction in which two or more reactants combine to form only one product is called a synthesis reaction.

Explanation:

7 0
3 years ago
Define and give an example of an acid and of a base.
Debora [2.8K]

A Brønsted-Lowry acid is defined as a compound that gives hydronium ions to another compound—for example, hydrochloric acid gives H+ ions to compounds it reacts with. Brønsted-Lowry bases are compounds that can accept hydronium ions—when ammonia gets a hydronium ion from HCl, it forms the ammonium ion.

5 0
3 years ago
Other questions:
  • A 10.0 g ice cube is placed into 250 g of water with an initial temperature of 20.0 C. If the water drops to a temperature of 16
    10·1 answer
  • Why does the Zr4+ ion exist?
    11·2 answers
  • How many atoms of chromium are in 0.86 mol of potassium chromate (K2CrO4)?
    15·1 answer
  • A student constructs an electrochemical cell. A diagram of the operating cell and the unbalanced ionic equation representing the
    12·1 answer
  • The ability of copper to be made into sheets is called ________ .
    11·1 answer
  • A puppy weight 7\18 pound and a kitten weight 4\9 pound Which weight more Explain​
    7·1 answer
  • Potassium hydrogen phthalate, KHC8H5O4, or KHP, is used in many laboratories, including general chemistry laboratories, to stand
    15·1 answer
  • (CREATE A TESTABLE QUESTION) my four substances are water, isopropanol alcohol, Penny(copper), and, Nickle(zinc)
    10·1 answer
  • Which compound when dissolved in water, will have the lowest freezing point?
    9·1 answer
  • 50 POINTS!! What is the relationship between the molecular structure of polypropylene and its macroscopic properties such as str
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!