Question

the statue is made of 908×10^5 g of copper. How many atoms of copper are in the statue?​

Answer 1

Number of moles in 0.635g of copper= 0.63563.5. ⇒0.01. Number of copper atoms in 0.01 moles =0.01×6.02×1023.............

Answer 2

Explanation:

$mass \: of \: copper \: statue \: = 908 \times {10}^{5}$

$mass \: one \: atom \: of \: copper \: = \: 63.546$

$so \: number \: of \: atoms \: of \: copper \: = \: (908 \times {10}^{5} \: \div \: 63.546) \: na$

$= (14.28 \times {10}^{5} )na$