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SCORPION-xisa [38]
3 years ago
15

How many grams in 120 moles of iron (Fe)?

Chemistry
1 answer:
beks73 [17]3 years ago
4 0

Answer:

Mass = 6702 g

Explanation:

Given data:

Number of moles of iron = 120 mol

Mass of iron = ?

Solution:

Formula:

Number of moles =mass/molar masa

Molar mass of iron = 55.85 g/mol

By putting values,

120 mol = mass/ 55.85 g/mol

Mass = 120 mol ×55.85 g/mol

Mass = 6702 g

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Sugar is a compound made of carbon, hydrogen and oxygen.

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3 years ago
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Based on the equation, how many grams of Br2 are required to react completely with 36.2 grams of AlCl3?
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Answer:

65.08 g.

Explanation:

  • For the reaction, the balanced equation is:

<em>2AlCl₃ + 3Br₂ → 2AlBr₃ + 3Cl₂,</em>

2.0 mole of AlCl₃ reacts with 3.0 mole of Br₂ to produce 2.0 mole of AlBr₃ and 3.0 mole of Cl₂.

  • Firstly, we need to calculate the no. of moles of 36.2 grams of AlCl₃:

<em>n = mass/molar mass</em> = (36.2 g)/(133.34 g/mol) = <em>0.2715 mol.</em>

<u><em>Using cross multiplication:</em></u>

2.0 mole of AlCl₃ reacts with → 3.0 mole of Br₂, from the stichiometry.

0.2715 mol of AlCl₃ reacts with → ??? mole of Br₂.

∴ The no. of moles of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃  = (0.2715 mol)(3.0 mole)/(2.0 mole) = 0.4072 mol.

<em>∴ The mass of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃ = no. of moles of Br₂ x molar mass</em> = (0.4072 mol)(159.808 g/mol ) = <em>65.08 g.</em>

4 0
3 years ago
Citric acid (h3c6h5o7) is a product of the fermentation of sucrose (c12h22o11) in air. determine the mass of citric acid produce
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2.50 x 2/1 = 5 mol of Citric Acid
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3 years ago
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Hello ^^

Answer:

D.Triple Bonds

Explanation:

A Triple bond is when three pairs of electrons are shared between two atoms in a molecule. It is the least stable out of the three general types of covalent bonds.

Hope this helps!

Have an awesome day!

If you have any questions please ask.

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What type of chest tube system does this statement describe?
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Answer:

<em>Dry suction chest tube system</em>

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