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3 years ago

If 8 moles of FeCl₃ react with 8 moles of O₂ what is the limiting reactant?

Chemistry

1 answer:

horrorfan [7]3 years ago

6 0

Answer:

FeCl3

Explanation:

We'll begin by writing the balanced equation for the reaction. This is shown below:

4FeCl3 + 3O2 —> 2Fe2O3 + 6Cl2

Thus, the limiting reactant can be obtained as follow:

From the balanced equation above,

4 moles of FeCl3 reacted with 3 moles of O2.

Therefore, 8 moles of FeCl3 will react with = (8 x 3)/4 = 6 moles of O2.

From the calculation made above, we can see that a lesser amount of O2 is needed to react completely with 8 moles of FeCl3. Therefore, FeCl3 is the limiting reactant.

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What is the melting point of water?

wlad13 [49]

That depends. In Celsius, its 0 degrees. In Farenheight, its 32 defrees. In Kelvin, its 273.15 Kelvin.

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4 years ago

10.000g of boron (B) combines with hydrogento form 11.554g of a pure compound. What is the empirical formula of this compound?

Citrus2011 [14]

Answer:

B3H5

Explanation:

The law of conservation of mass states that matter in an closed system is neither created nor destroyed by physical transformations or chemical reactions but changes from one form to the other.

That is, the sum of masses of the reactants = The sum of masses of the product

10.00g of Boron + x grams of Hydrogen = 11.55g of the product

Mass of hydrogen = 11.55 - 10.00 = 1.55g

Molar mass of Boron = 10.811g

Molar mass of Hydrogen = 1.00784g

Number of moles of Boron = (mass of Boron)/(molar mass of Boron) = 10/10.811 = 0.9249 mols

Number of moles of Hydrogen = (mass of Hydrogen)/(molar mass of Hydrogen) = 1.55/1.00784 =1.5379mols

0.9249 mols of Boron combines with 1.5379mols of Hydrogen

Dividing both sides mols by 0.9249 gives

1 mole of Boron combines with 1.66266 mols of Hydrogen

Converting 1.66266 to fractions we have 1.66266 approximately 5/3

or 1 mole of Boron combines with 5/3 moles of Hydrogen

Multiplying both sides by 3 we have

3 moles of Boron combines with 5 moles of Hydrogen

Molecular formula of the compound is

B3H5

4 0

3 years ago

How many moles are represented by 3.01 - 1023 helium atoms?

Pavlova-9 [17]

Answer:

0.5 mol

Explanation:

Given data:

Number of atoms of He = 3.01 ×10²³

Number of moles = ?

Solution:

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.02 × 10²³ is called Avogadro number.

1 mole = 6.02 × 10²³ atoms

3.01 ×10²³ atoms × 1 mol / 6.02 × 10²³ atoms

0.5 mol

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3 years ago

What is the chemical symbol for nitrogen and oxygen?

irina1246 [14]

N2 and O2

hope it helps

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nadezda [96]

Answer:

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Explanation:

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3 years ago