Question

1. If the size of a nucleus (~- 10^-15m ) is scaled up to the tip of a sharp pin ( ~- 10^-5m), then what roughly is the size of the atom?
2. Mole fraction of NaOH in 5 molal aqueous NaOH solution is

Answer 1

$\huge\bold{\large{\underline{\underline{Solution :-}}}}$

• Case-1

Nuclear size~ 10^ -15 m

Atomic Size~ 10 ^ -10 m

So, if we assume the nuclear size to be of the order of the size of a tip of a pen ( i.e. 10^ -5 m) by scaling it up by a factor of 10^ 10.

The same must be applied to the size of the entire atom. So even the size of the atom is scaled up to 10^ 10 that becomes 1m.

• Case-2

#refer the attachment.