Chapter 30, Problem 11P

To determine

The number of nucleons in 1Kg object. Is it same for all element? Explain why?

Answer to Problem 11P

Solution:

$N=6.023\times {10}^{26}$, yes

Explanation of Solution

According to Avogadro, the number of molecules in a mole of substance is given by:

N=$6.023\times {10}^{23}\text{u/g}$

Thus, number of nucleons in 1 kg object is given by,

$\begin{array}{l}N=1000g\times 6.023\times {10}^{23}\text{u/g}\\ N\text{=}6.023\times {10}^{26}\end{array}$

Yes, Avogadro’s number is same for all element. Thus, it doesn’t matter what object is made of.