All categories

3 years ago

If he has an excess of ammonium sulfide and 125.0 mL of a 1.51 M solution of Al(NO3)3, how many

Chemistry

1 answer:

Bogdan [553]3 years ago

6 0

The mass of the aluminum sulfide, Al₂S₃, that can be produced from the reaction is 14.16 g

<h3>How to determine the mole of Al(NO₃)₃</h3>

Volume = 125 mL = 125 / 1000 = 0.125 L
Molarity of Al(NO₃)₃ = 1.51 M

Mole of Al(NO₃)₃ =?

Mole = Molarity x Volume

Mole of Al(NO₃)₃ = 1.51 × 0.125

Mole of Al(NO₃)₃ = 0.18875 mole

<h3>How to determine the mole of Al₂S₃ produced </h3>

Balanced equation

2Al(NO₃)₃ + 3(NH₄)₂S → Al₂S₃ + 6NH₄NO₃

From the balanced equation above,

2 moles of Al(NO₃)₃ reacted to produce 1 mole of Al₂S₃

Therefore,

0.18875 mole of Al(NO₃)₃ will react to produce = 0.18875 / 2 = 0.094375 mole of Al₂S₃

<h3>How to determine the mass of Al₂S₃ produced </h3>

Mole of Al₂S₃ = 0.094375 mole
Molar mass of Al₂S₃ = (27×2) +(32×3) = 150 g/mol

Mass of Al₂S₃ =?

Mass = mole × molar mass

Mass of Al₂S₃ = 0.094375 × 150

Mass of Al₂S₃ = 14.16 g

Learn more about stoichiometry:

brainly.com/question/14735801

You might be interested in

The kinetic molecular theory states that all particles of an ideal gas are

Marizza181 [45]

THE KINETIC MOLECULAR THEORY STATES THAT ALL PARTICLES OF AN IDEAL GAS ARE IN CONSTANT MOTION AND EXHIBITS PERFECT ELASTIC COLLISIONS.

Explanation:

An ideal gas is an imaginary gas whose behavior perfectly fits all the assumptions of the kinetic-molecular theory. In reality, gases are not ideal, but are very close to being so under most everyday conditions.

The kinetic-molecular theory as it applies to gases has five basic assumptions.

Gases consist of very large numbers of tiny spherical particles that are far apart from one another compared to their size.
Gas particles are in constant rapid motion in random directions.
Collisions between gas particles and between particles and the container walls are elastic collisions.
The average kinetic energy of gas particles is dependent upon the temperature of the gas.
There are no forces of attraction or repulsion between gas particles.

5 0

3 years ago

How is earth's mantic field similar to that of a bar magnet

Alika [10]

Answer:The outer core of the Earth contains a lot of iron in a molten state. As the Earth spins this molten iron moves and creates the Earth's magnetic field. The Earth behaves as if there is a huge bar magnet at its centre. The shape of the field around the Earth is very similar to the field around a bar magnet

Explanation:

6 0

3 years ago

What is the independent, dependent, and controlled variable?

attashe74 [19]

Independent Variable: amount of sunlight given

Dependent Variable: How tall the plants grow

Control: The plant given no sunlight

7 0

4 years ago

An aqueous solution of glucose has molality of 6.81 and a density of 1.2 g/ml what is the molarity of glucose in the solution

andriy [413]

Answer:

the molarity is 3.68 moles/L

Explanation:

the molality of the solution of sucrose is

m= moles of glucose / Kg of solvent (water)= 6.81 ,

since the molecular weight of glucose is 180.156 gr/mole , then per each kilogram of solvent there is

6.81 moles*180.156 gr/mole + 1000 gr of water = 2226.86 gr of solution

from the density

volume of solution = mass of solution/density = 2286.86 gr / 1.2 gr/ml = 1855.71 ml

therefore there is 1000 gr of water in 1855.71 ml

then the molarity M is

M= moles of glucose / L of solution = (moles of glucose / Kg of solvent) * (Kg of solvent/L of solution) = 6.81 moles/Kg * 1Kg/1.85 L = 3.68 moles/L

M= 3.68 moles/L

Note:

- Would be wrong in this case to assume density of water = 1 Kg/L since the solution is heavily concentrated in glucose and therefore the density of water deviates from its pure value.

3 0

4 years ago

Why do atoms of nonmetals form anions? Support your answer with an example.

Papessa [141]

Nonmetals form negatively charged ions, or anions. They do this because they need to gain one to three electrons in order to achieve an octet of valence electrons, making them isoelectronic with the noble gas at the end of the period to which they belong.

5 0

3 years ago