Question

which has more no of atom 100g of Na or 100g of Fe

Answer 1

Answer:

here is ur answer mate

Explanation:

Since 100 grams of sodium has more moles, it contains more atoms than 100 grams of iron. As we know , the one - mole atoms contains 6.022 multiply 10 ^23 atoms . so , more the number of moles , more the number of atoms . and hence 100 g pf Na atoms has a greater number of atoms than 100 g Fe .

hope it helps you

Answer 2

$\bf{\underline{Solution}}:-$

$\rm\:1\:mole\:of\:Na=23\:g$

$\rm\longrightarrow\:6.022\times{10}^{23}\:atom=23g$

$\rm\longrightarrow\:\dfrac{1}{23}\:mole=1\:g$

$\rm\longrightarrow\:\dfrac{100}{23}\:mole=100g$

$\rm\longrightarrow\:100\:g=\dfrac{100}{23}\:mole$

Then,

$\rm\:1\:mole\:of\:Fe=56\:g$

$\rm\longrightarrow\:6.022\times{10}^{23}\:atom=56\:g$

$\rm\longrightarrow\:\dfrac{1}{56}\:mole=1\:g$

$\rm\longrightarrow\:\dfrac{100}{56}\:mole=100\:g$

$\rm\longrightarrow\:100\:g=\dfrac{100}{56}\:mole$

$\rm\bigstar\:\:\:\:\:\dfrac{100}{23}\:mole$ > $\rm\:\dfrac{100}{56}\:mole$

Hence, 100 g of sodium(Na) has more number of atoms than 100 g of Iron(Fe).

$\blue{\bigstar}\:\:{\underline{\boxed{\bf\red{More\:Information}}}}$

➝ Atomic mass :- The Atomic mass of an element is a number which express as to how many times an atom of the element is havier than 1/12 th of the mass of carbon atom (C¹²)

➝ Atom :- An atom is the smallest part of an element in which all the properties of the matter remains alike and which participates in a chemical reaction.