All categories

2 years ago

How many moles of chloride ions are in 0.2510 g of aluminum chloride?

2 answers:

6 0

<span>1.882 x 10^(-3) moles aluminum chloride has a formula of AlCl3. So let's calculate the molar mass of AlCl3 atomic mass of Al = 26.982 atomic mass of Cl = 35.453 molar mass of AlCl3 = 26.982 + 3 * 35.453 = 26.982 + 106.359 = 133.341 We have 0.2510 grams of AlCl3, so divide that by the molar mass of AlCl3, giving 0.2510 / 133.341 = 0.001882 moles = 1.882 x 10^(-3) moles</span>

Alex_Xolod [135]2 years ago

3 0

0.00565 moles of Chloride ions are in 0.2510 g of aluminium chloride.

<h2>Further Explanation:</h2><h3>An Atom</h3>

An atom is the smallest particle of an element that can take part in a chemical reaction. For example, sodium atom, Na.

<h3>A Molecule</h3>

A molecule is a substance that is made up of one or more atoms. The atoms in a molecule may be similar or different making a compound.

<h3>A compound </h3>

A compound is a substances that contains two or more different atoms that are bonded together. When the atoms are similar the substance is known as a molecule, therefore not all molecules are compounds.
AlCl₃ is an example of a compound that contains three aluminium ions and two chloride ions.

Therefore;

AlCl₃ ionizes to give out Al³⁺ ions and 3Cl⁻ ions

AlCl₃ → Al³⁺ + 3Cl⁻

Required to determine the moles of ions of Cl⁻ ions

<h3>Step 1: Moles of AlCl₃ </h3>

Number of moles = Mass /Molar mass

Molar mass of AlCl₃ = 133.34 g/mol

Thus;

Moles = 0.2510 g/133.34 g/mol

= 0.00188 moles

<h3>Step 3: Moles of Cl⁻ ions</h3>

1 mole of AlCl₃ ionizes to give 3 moles Cl- ions

Therefore;

= 0.00188 moles of AlCl₃ will produce;

= 0.00188 moles x 3

= 0.00565 moles Cl⁻ ions

Therefore; 0.00565 moles of Chloride ions are in 0.2510 g of aluminium chloride.

Keywords: Atoms, ions, Moles, molar mass

<h3>Learn more about; </h3>

Atom: brainly.com/question/5753305
Molecules; brainly.com/question/5753305
Compounds: brainly.com/question/5753305
Molecular mass: brainly.com/question/5753305

Level: High school

Subject: Chemistry

Topic: Moles

You might be interested in

Some versions of the periodic table show hydrogen at the top of Group 1A(1) and at the top of Group 7A(17). What properties of h

lawyer [7]

Answer:Hydrogen is placed such because it exhibits some similar characteristics of both group1 and group VII elements.

Explanation:

The reason why hydrogen is similar to group 1 metals:

#It has same valence electron and inorder achieve octet state it can lose that electron and forms H+ ion

#It acts as a good reducing agent similar to group1 metals

#It can also halides

Similarity to halogens:

#hydrogen can also gain one electron to gain noble gas configuration. It can combine with other non metals to form molecules with covalent bonding.

#It exists as diatomin molecule,H2

#Have the same electronegativity nature

#its reaction with other metal

8 0

2 years ago

The list below includes some of the properties of ammonia. Identify the physical properties in the list. Check all of the boxes

aleksklad [387]

Answer:

Gas at room temperature

Strong, unpleasant odor

Dissolves easily in water

Explanation:

Just did the assignment

6 0

2 years ago

Read 2 more answers

A sample from solution a and solution b were each tested with blue colored glucose indicator solution before the solutions were

vova2212 [387]

With the given problem you gave here, I can't answer the question because I need more details. Luckily, I found a similar problem that's provided with a diagram and a table shown in the attached picture.

This test is called the Benedict's test which is used as test for presence of sugars. If the solution contains sugar, like glucose, the solution would turn from blue to red. If not, it would stay blue. <em>Therefore, the correct results would be that in row 3.</em>

3 0

2 years ago

5.00 g of hydrogen gas and 50.0g of oxygen gas are introduced into an otherwise empty 9.00L steel cylinder, and the hydrogen is

GenaCL600 [577]

1) Balanced chemical reaction:

2H2 + O2 -> 2H20

Sotoichiometry: 2 moles H2: 1 mol O2 : 2 moles H2O

2) Reactant quantities converted to moles

H2: 5.00 g / 2 g/mol = 2.5 mol

O2: 50.0 g / 32 g/mol = 1.5625 mol

Limitant reactant: H2 (because as per the stoichiometry it will be consumed with 1.25 mol of O2).

3) Products

H2 totally consumed -> 0 mol at the end

O2 = 1.25 mol consumed -> 1.5625 mol - 1.25 mol = 0.3125 mol at the end

H2O: 2.5 mol H2 produces 2.5 mol H2O -> 2.5 mol at the end.

Total number of moles: 0.3125mol + 2.5 mol = 2.8125 mol

4) Pressure

Use pV = nRT
n = 2.8125
V= 9 liters
R = 0.082 atm*lit/K*mol
T = 35 C + 273.15 = 308.15K

p = nRT/V = 7.9 atm

3 0

2 years ago

Read 2 more answers

eleanor purchased $2568 worth of stock and paid her broker a 0.5% fee. She sold the stock when the stock price increased to 3928

Mrrafil [7]

Answer: $1338.16

Explanation: Total cost of stock= $2568

Total cost of stock including the brokerage $=2568+\frac{0.5}{100}\times {2568}=2580.84$ $