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3 years ago

What is the name of the compound fecl2? iron(ii) chloride iron chlorate iron(ii) chlorate iron dichloride

Chemistry

2 answers:

dolphi86 [110]3 years ago

5 0

FeCl2 = Iron(II) chloride

hope this helps!

hammer [34]3 years ago

5 0

Answer: The name of $FeCl_2$ is iron (II) chloride.

Explanation:

$FeCl_2$ is an ionic compound because iron element is a metal and chlorine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The nomenclature of ionic compounds is given by:

Positive ion is written first.
In case of transition metals, the oxidation state are written in roman numerals in bracket infront of positive ions.
The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.
In case of polyatomic ions, the name of the ion is written as such. For Example: $OH^-$ is named as hydroxide, $SO_4^{2-}$ is named as sulfate and so on..

Hence, the name of $FeCl_2$ is iron (II) chloride.

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when 1.00 l 1.00 l of a 0.500 m l i b r 0.500 m libr solution is tripled by dilution with water, what is the number of moles of

Murrr4er [49]

When 1.00 L of a 0.500 M LiBr solution is tripled by dilution with water . the number of moles of lithium in new solution is 0.5 moles.

given that :

volume = 1.00 L

molarity = 0.500 M

The solution is tripled by dilution but there will be no effect in number of mole by the dilution.

the number of moles = molarity × volume in L

the number of moles = 1 × 0.500

the number of moles = 0.5 mol

Thus, When 1.00 L of a 0.500 M LiBr solution is tripled by dilution with water . the number of moles of lithium in new solution is 0.5 moles.

To learn more about number of moles here

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7 0

1 year ago

Calculate the theoretical density of iron, and then determine the number of vacancies per cm3 needed for a BCC iron crystal to h

Ann [662]

Answer:

Therefore the theoretical density of iron is 7.877 g/cm³ .

Therefore the number of vacancy per cm³ is $3.27 \times 10^{20}$

Explanation:

BCC structure contains 2 atoms per cell.

BCC : Body centered cubic.

Atomic mass of iron = 55.845 gram/mole.

Atomic mass of a chemical element is the mass of 1 mole of the chemical element.

Density: Density of a matter is the ratio of mass of the matter and volume of the matter.

Avogrdro Number is number of atoms per 1 mole.

Avogrdro Number= 6.023×10²³

Lattice parameter of iron = 2.866×10⁻⁸ cm

The theoretical density:

$\rho=\frac{\textrm{(x atom/cell)} \times \textrm{(atomic mass)}}{\textrm{avogadro's number}\times \textrm{(lattice parameter)}^3}$

$=\frac{2\times 55.845 }{(6.023\times 10^{23})\times (2.866\times 10^{-8})^3}$ g/cm³ [x= 2,Since it is BCC structure]

=7.877 g/cm³

Therefore the theoretical density of iron is 7.877 g/cm³ .

Now we have to find out the number of unit cell of iron crystal having density 7.874 g/cm³.

$\rho=\frac{\textrm{(x atom/cell)} \times \textrm{(atomic mass)}}{\textrm{avogadro's number}\times \textrm{(lattice parameter)}^3}$

$\Rightarrow 7.874 =\frac{x\times 55.845}{6.023\times 10^{23}\times (2.866\times 10^{-8})^3}$

$\Rightarrow x= \frac{7.874\times 6.023\times 10^{23}\times (2.866\times 10^{-8})^3}{55.845}$

⇒ x =1.9923 atom/cell

Therefore the vacancy of atom per cell = (2- 1.9923)=0.0077

$Vacancy\ per\ cm^3=\frac{\textrm{Vacancy per cm} ^3 }{\textrm{( lattice parameter)} ^3}$

$=\frac{0.0077}{(2.866\times 10^-8)^3}$

$=3.27 \times 10^{20}$

Therefore the number of vacancy per cm³ is $3.27 \times 10^{20}$

5 0

3 years ago

Question 3 (1 point)

Basile [38]

The answer is 1 I basically goes to least dense to most dense

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3 years ago

Which of the following is the major advantage of using geothermal energy instead of using coal energy? Choice:

maxonik [38]

Answer:

C. Releases less carbon dioxide

Explanation:

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3 years ago

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likoan [24]

Answer:

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Explanation:

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