Molar mass of a compound containing Al3+ ion and OH- ion?

Chemistry

1 answer:

Sedbober [7]2 years ago

5 0

Answer: The molar mass of a compound containing $Al^{3+}$ ion and $OH^-$ ion is 78 g/mol

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here aluminium has an oxidation state of +3 called as $Al^{3+}$ cation and $OH^{-}$ is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $Al(OH)_3$

Molar mass is defined as the mass in grams of 1 mole of a substance.

Atomic Mass of Aluminium (Al) = 27 g

Atomic Mass of Oxygen (O) = 16 g

Atomic Mass of Hydrogen (H) = 1 g

Molecular mass of $Al(OH)_3$ = 27+3(16)+3(1) g = 78 g

Thus molar mass of a compound containing $Al^{3+}$ ion and $OH^-$ ion is 78 g/mol

You might be interested in

How does solubility differ between small versus large carbohydrates? Explain.

EleoNora [17]

Answer with Explanation:

Small and large carbohydrates have diverse structural properties. Such property allow them to have different solubility.

Solubility is a chemical property of a substance that allows it to dissolve in a given solvent.

Carbohydrates are made up of "monosaccharides." These are simple sugars and are considered small carbohydrates. On the contrary, "polysaccharide" is an example of a large carbohydrate. Monosaccharides are soluble in water while many polysaccharides are not soluble in water.

The high solubility of monosaccharides is mainly due to the presence of hydroxide (OH) groups. These groups are always ready to bond with water (H₂O). Many polysaccharides are not soluble in water because of intermolecular interactions that prevents it from binding with water. Its dissolution process is different when compared to the smaller molecules.

So, this explains the answer.

5 0

2 years ago

Y’all what’s this I don’t feel like doing it and I’ll give brainlist too

maw [93]

Answer:

2.Closed System: A closed system is a thermodynamic system where energy can be exchanged with its surrounding but not matter. Open System: Open systems can exchange matter with the surrounding. Closed System: Closed systems cannot exchange matter with the surrounding. Open System: The mass of the system will vary with time in open systems.

Explanation:

1.The particle model is the name for the diagrams used to draw solids, liquids and gases. In the model, the particles are shown as circles or spheres. However, the particles in ice, liquid water and steam look the same because they are all water, but in different states of matter. Why do we use the particle model in science?

3.An open system can be defined as a system which can exchange both matter and energy with the surrounding. For example, the earth can be recognized as an open system. In this case, the earth is the system, and space is the surrounding. Sunlight can reach the earth surface and we can send rockets to space.