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
Simora [160]
3 years ago
8

In the compound k[co(c2o4)2(h2o)2] (where c2o42– = oxalate) the oxidation number and coordination number of cobalt are, respecti

vely
Chemistry
2 answers:
anygoal [31]3 years ago
8 0

Answer:

Oxidation number: 3+

Coordination number: 4

Explanation:

<em>In the compound K[Co(C₂O₄)₂(H₂O)₂] (where C₂O₄²⁻ = oxalate) the oxidation number and coordination number of Cobalt are, respectively?</em>

<em />

The sum of the oxidation numbers and charges of the species forming the complex is equal to the overall charge, in this case, zero.

K + Co + 2 . C₂O₄²⁻ + 2 . H₂O = 0

+1 + Co + 2 . (2-) + 2 . 0 = 0

Co = 3+

The coordination number is the number of ligands attached to the central atom. 2 oxalates and 2 water molecules are attached to the cobalt atom, so the coordination number is 2 +2 = 4.

ehidna [41]3 years ago
6 0
Let's Assign Symbols to molecules like,

                    C₂O₄  =  X
and 
                    H₂O   =  Y
Then,
                                K [ Co (X)₂ (Y)₂ ]

As, Potassium (K) has a O.N  =  +1

To neutralize, the coordination sphere must have -1 oxidation number.
So,
                                    [ Co (X)₂ (Y)₂ ]  =  -1
As,
           O.N of X  = -2
Then 
       O.N of (X)₂  =  -4

Also,
O.N of H₂O is zero as it is neutral, So,

                                    [Co - 4 + 0 ]  =  -1
Or,
                                    Co  =  -1 + 4

                                    Co  =  +3

Result:
          Oxidation Number of Coordination Sphere is -1 and Oxidation Number of Cu is +3.
You might be interested in
Red blood cells contain an enzyme called carbonic anhydrase, which catalyzes the reversible reaction whereby carbon dioxide and
Dvinal [7]
Carbon o2 to bed the oxygen of the
3 0
3 years ago
Arrange the following molecules according to the strength of their dispersion forces. Organize in order from largest to smallest
ki77a [65]

Explanation:

The weak intermolecular forces which can arise either between nucleus and electrons or between electron-electron are known as dispersion forces. These forces are also known as London dispersion forces and these are temporary in nature.

Therefore, more is the surface area occupied by the carbon chain more will be the dispersion forces present in it. Hence, less is the surface area occupied by a molecule less will be the dispersion forces present in it.  

Hence, the given molecules are organized from largest to smallest dispersion forces as follows.

CH_{3}CH(CH_{3})C(CH_{3})_{2}CH_{2}CH_{3} > CH_{3}CH_{2}(CH_{2})_{4}CH_{2}CH_{3} > CH_{3}CH_{2}CH_{2}CH_{2}CH_{3} > CH_{3}C(CH_{3})2CH_{3} > CH_{3}CH_{2}CH_{3} > CH4

3 0
3 years ago
Why is ice cream a mixture
kvasek [131]

Ice is a mixture and it can be a compound at the same time. A mixture is when you have to substance's put together fro example you can mix salt and sugar together. But a compound is when two different elements or molecules are combined. Ice cream is a mixture or cream and sugar mainly.
7 0
3 years ago
Read 2 more answers
Sally has constructed a concentration cell to measure Ksp for MCln. She constructs the cell by adding 2 mL of 0.05 M M(NO3)n to
hram777 [196]

Answer:

0.1056 mole

Explanation:

As Sally knows that the charge on the metal ion is n = +2

$MCl_n=MCl_2$

In that compartment $[M^{n+}]=[m^{2+}]=8.279 \ M$

The volume of the $MCl_n$ taken in that compartment = 6.380 mL

So, the number of moles of $M^{2+} = 8.279 \times 6.380$

                                                      = 52.82 m mol

                                                      = 0.05280 mol

$MCl_n \rightarrow M^{n+}+nCl^-$

But n = 2

Therefore, moles of $Cl^-$ = 2 x moles of $M^{n+}$

                                       = 2 x 0.05282

                                       = 0.1056 mole

3 0
3 years ago
2 Points
barxatty [35]

Answer:

it's food engineering obviously

4 0
3 years ago
Other questions:
  • The particle picture is best described as....
    14·2 answers
  • PLEASE HELP!!
    11·1 answer
  • how many grams of bromine, br2, are required to react completely with 37.4 grams of aluminum chloride, AlCl3?
    6·1 answer
  • Convert the following: 100 hg(hectograms) to g(grams)
    11·2 answers
  • How many atoms are there in 1.3 x 10^22 molecules of N(O)2
    11·2 answers
  • 3. At a pressure of 405 kPa, the volume of a gas is 6.00 cm
    10·1 answer
  • Tempature really is a measure of the ?? or the particles in any material
    6·1 answer
  • What are characteristics of a good scientific investigation
    15·1 answer
  • Na-23 has 12 neutrons. What is its atomic number
    6·1 answer
  • Some antacid tables contain aluminum hydroxide. The aluminum hydroxide reacts with stomach acid according to the equation: Al(OH
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!