Answer:
The number of atoms is 6.83 grams of potassium is [tex]1.05\times 10^{23} atoms[/tex].
Explanation:
Mass of the potassium element = 6.83 g
Atomic mass of potassium = 39.10 g/mol
Moles of potassium = [tex]\frac{6.83 g}{39.10 g/mol}=0.175 mol[/tex]
According to mole concept :
1 mole = [tex]N_A=6.022\times 10^{23} [/tex] atoms/ions/ molecules
Total number of atoms of potassium in 0.175 moles:
[tex]=0.175 \times 6.022\times 10^{23} =1.05\times 10^{23} atoms[/tex]
So, number of atoms is 6.83 grams of potassium is [tex]1.05\times 10^{23} atoms[/tex].
