Question 7(b)
What is the mass of:
(b) 4 moles of aluminium atoms (atomic mass of aluminium = 27)?

Q. Question 7(b)
What is the mass of:
(b) 4 moles of aluminium atoms (atomic mass of aluminium = 27)?

Q. What is the mass of$-$
$\left(a\right)$ $1$ mole of nitrogen atoms?
$\left(b\right)$ $4$ moles of aluminium atoms(Atomic mass of aluminium $=27)?$
$\left(c\right)$ $10$ moles of sodium sulphite $\left(N{a}_{2}S{O}_3\right)?$

Q. Aluminium (Atomic mass = 27) crystallises in a cubic system with edge length of 4 $A^{\circ }$. Its density is 2.7 g $c{m}^{-3}.$ The number of aluminium atoms present per unit cell is