Question

8. If the atomic mass of aluminium is 27 g, calculate the mass for 4 moles of aluminium
atoms?​

Answer 1

Answer :-

Given :-

• Atomic Mass of Al = 27 g

• Moles of Al = 4 moles

To Find :-

• Mass - M

Solution :-

We know that,

$\boxed{\sf Moles = \dfrac{Given \: Mass}{Molecular \: Mass}}$

Substituting the value in formula :-

→ $\sf 4 = \dfrac{M}{27}$

→ $\sf M = 4 \times 27$

→ $\sf M = 108$

Required Mass = 108 g

Answer 2

Question

If the atomic mass of aluminium is 27 g, calculate the mass for 4 moles of aluminium atoms?

Answer

Given:-

Atomic mass of aluminium = 27g

To calculate = Mass for 4moles of alluminium atoms

Calculation

The Atomic mass,

For one mole of alluminium = 27g

For four mole of alluminium = 27 × 4g = 108g

Therefore, the mass for 4 moles of alluminium is 18g.

Aluminium

• The symbol of alluminium Al
• Atomic number 13.
• Aluminium has a density lower than those of other common metals, at approximately one third that of steel.
• Aluminium has a great affinity towards oxygen