Answer:
10.836 × 10∧23 atoms
Explanation:
The mole is the unit of amount in chemistry. We know that
1 mole of silicon = 6.02× 10∧23 atoms
The number 6.02× 10∧23 is called Avogadro's number.
Definition:
" Avogadro's number is the number of molecules atoms or ions in one gram molecule of a compound, one gram atom of an element or one gram ions of a substance"
For example:
1 g of hydrogen = 1 mole of hydrogen = 6.02× 10∧23 atoms of hydrogen
18 g of water= 1 mole of water= 6.02× 10∧23 molecules of water
Given data:
moles of sulfur= 1.8 mol
number of atoms= ?
Solution:
one mole of silicon= 6.02 × 10∧23
1.8 × 6.02× 10∧23 = 10.836 × 10∧23 atoms
Explanation:
According to the mole concept there are [tex]6.022 \times 10^{23} atoms[/tex] present in 1 mole of a substance.
Mathematically, 1 mole = [tex]6.022 \times 10^{23}[/tex] atoms or molecules
Therefore, number of atoms of silicon present in 1.8 mol of silicon are as follows.
[tex]1.8 mol \times 6.022 \times 10^{23}}atoms /mol[/tex]
= [tex]10.83 \times 10^{23}[/tex] atoms
Thus, we can conclude that there are [tex]10.83 \times 10^{23}[/tex] atoms of silicon are present in 1.8 mol of silicon.
