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svlad2 [7]
3 years ago
11

How many unpaired electrons would you expect on iron in [fe(h2o6] 3+?

Chemistry
2 answers:
MrMuchimi3 years ago
6 0
The iron (III) has 5 valence electrons and the complex is in a octahedral geometry. Since water as a ligand has a small splitting energy, the complex will be a high spin and all of the five electrons will be unpaired. 
Nadusha1986 [10]3 years ago
3 0

Answer:

Five unpaired electrons

Explanation:

This should be the real equation: [Fe(H20)6]3+

Firstly, Ligands are ions or neutral molecules, that bonds to a central metal atom or ions. In this case the ligand here is the aqua molecule(H2O)6.

According to Hund's rule,electrons always enter an empty orbital before they pair up. This rule holds because the orbital have the same energy. In a situation like this where we have a ligand coordinating to a metal ion, the energy of the orbital are no longer same.

What really affects Hund's rule is the crystal field splitting . In this case the ligand molecule(H2O) has a weak crystal splitting and is denoted as weak field ligands. The weak field ligand has a less field splitting energy than the pairing energy. So the electron filling pattern in the d shell follows the Hund's rule.

Therefore, iron(Fe) = 1s2 2s2 2p6 3s2 3p6 4s2 3d6

Giving out the 2 electron from 4s shell and one electron from  the  only paired d electron( Fe3+) . The remaining five electron from the d shell becomes unpaired.

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What would be the volume in millilitres of a blood sample of 2.15 microliters (ul)?​
Zanzabum

2.15 x 10⁻³mL

Explanation:

Given parameter:

    Volume of blood sample in uL = 2.15uL

Conversion           uL → mL

   micro- and milli-  are both prefixes of sub-units.

liter is a unit of volume of a substance.

       micro - is 10⁻⁶

       milli- is of the order 10⁻³

The problem is converting from micro to milli:

     if we multiply  10⁻⁶ by 10³ we would have our milli;

  1000uL = 1mL

  2.15uL :   2.15uL x \frac{1mL}{1000uL} = 2.15 x 10⁻³mL

learn more:

Volume brainly.com/question/5055270

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4 0
3 years ago
What is the net charge of the ionic compound calcium fluoride
yKpoI14uk [10]

Answer:

  • <em>The net charge of the ionic compound calcium fluoride is </em><u><em>zero (0).</em></u>

<em>Explanation:</em>

<em>Ionic compounds,</em> such as covalent ones, have zero net charge; this is, they are neutral.

Substances with net positive charge are cations and substances with net negative charge are anions.

The charges in the <em>ionic compound calcium flouride</em> are distributed in this way:

  • Compound formula: CaF₂

  • Calcium charge: Ca²⁺: this is, each calcium ion has a 2 positive charge

  • Fluoride charge: F⁻: each fluoride ion has a 1 negative charge.

  • Then, the <em>net charge</em> is: 1 × (2+) + 2 × (1-) = +2 - 2 = 0.

So, a two positve charge, from one calcium ion, is equal to two negative charges, from two fluoride tions, yielding a <u>zero net charge</u>.

8 0
3 years ago
The column just before the stable noble gases are called the
Sergio039 [100]
Is called the Halogen
6 0
2 years ago
What is the mass of 0.850 mole of SO2?
Vesnalui [34]

Answer:

1 \: mole \: of \: sulphurdioxide \: weighs \: 64 \: g \\ 0.850 \: moles \: will \: weigh \: (0.850 \times 64) \: g \\  = 544 \: g

6 0
2 years ago
Read 2 more answers
A mixture of 5L of H2 and 3L O2 reacts to form H2O (g) at constant T and P .Find the
slamgirl [31]

The  volume of H₂O = 5 L

<h3>Further explanation</h3>

Given

5L of H₂ and 3L O₂

Reaction

2H₂ (g) + O₂(g)  ⇒2H₂O(g)

Required

The  volume of H₂O

Solution

Avogadro's hypothesis:  

<em>In the same T,P and V, the gas contains the same number of molecules  </em>

So the ratio of gas volume will be equal to the ratio of gas moles  

mol H₂ = 5, mol O₂ = 3

  • Find limiting reactants

From equation, mol ratio H₂ : O₂ = 2 : 1, so :

\tt H_2\div O_2=\dfrac{mol~H_2}{coefficient}\div \dfrac{mol~O_2}{coefficient}\\\\=\dfrac{5}{2}\div \dfrac{3}{1}=2.5\div 3\rightarrow H_2~limiting~reactant(smaller~ratio)

  • Find volume H₂O

mol H₂O based on mol H₂, and from equation mol ratio H₂ : H₂O=2 : 2, so mol H₂O = 5 mol and the volume also 5 L

4 0
2 years ago
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