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3 years ago

How many iron atoms are there in 2.50moles of each of the following? FeWO4 =? Atoms of Fe

Chemistry

2 answers:

oksano4ka [1.4K]3 years ago

4 0

<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. Calculations are as follows:

</span>2.50 mol FeWO4 ( 1 mol Fe / 1 mol FeWO4 ) ( <span>6.022 x 10^23 atoms Fe / 1 mol Fe )</span>= 1.51 x 10^24 atoms Fe

andrezito [222]3 years ago

3 0

There are 1.505 .10²⁴ iron atoms in 2.5 moles Wolframite (FeWO₄)

<h3>Further explanation </h3>

Stoichiometry in Chemistry learn about chemicals mainly emphasizes quantitative, such as the calculation of volume, mass, number, which is related to numbers, molecules, elements, etc.

The empirical formula (EF) is the smallest atomic ratio of the constituent elements.

The empirical formula shows the simplest comparison of the atoms making up the molecule

Molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.

(EF)n = MF

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12

1 mole = 6.02.10²³ particles

While the number of moles can also be obtained by dividing the mass (in grams) with

$\large{\boxed{\bold{mole\:=\:\frac{grams}{the\:relative\:mass\:of\:elements\:or\:the relative\:mass\:of\:molecules} }}}$

In the Wolframite( FeWO₄) compound there is 1 mole of Fe atom from 1 mole of FeWO₄ molecule

So if there are 2.5 moles of FeWO₄, the number of Fe moles is the same as 2.5 moles of Fe

Then the number of Fe atom particles in 2.5 mol Fe is:

2.5 x 6.02.10²³ particles = 1.505 .10²⁴ iron atoms

<h3>Learn more </h3>

Avogadro's number

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carbon atoms in 1.50 g of butane

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a mole and Avogadro’s number

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Keywords: mole, Avogadro’s number, FeWO4, atoms, iron

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Answer:

The initial temperature of the metal is 84.149 °C.

Explanation:

The heat lost by the metal will be equivalent to the heat gain by the water.

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3 years ago

Cytokinesis happens differently for plant and animal cells. Both separate cytoplasm between two new daughter cells. However, whi

victus00 [196]

Answer:

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Explanation:

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The process of cytokinesis is different for animal cell and plant cell.

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3 years ago

During the chemical reaction given below 21.71 grams of each reagent were allowed to react. Determine how many grams of the exce

swat32

Answer: 16.32 g of $O_2$ as excess reagent are left.

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

$\text{Moles of} SO_2=\frac{21.71g}{64g/mol}=0.34mol$

$\text{Moles of} O_2=\frac{21.71g}{32g/mol}=0.68mol$

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According to stoichiometry :

2 moles of $SO_2$ require = 1 mole of $O_2$

Thus 0.34 moles of $SO_2$ will require= $\frac{1}{2}\times 0.34=0.17moles$ of $O_2$

Thus $SO_2$ is the limiting reagent as it limits the formation of product and $O_2$ is the excess reagent.

Moles of $O_2$ left = (0.68-0.17) mol = 0.51 mol

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Thus 16.32 g of $O_2$ as excess reagent are left.

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2 years ago

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Alborosie

Answer:

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