The atomic mass of K is 39
from Avogadro's law
39g of K contains 6.02x10^23 atoms
therefore if
39=6.02x19^23
X=5.11×10^22
making X the subject of the formula
X= (5.11×10^22×39)÷6.02×10^23
X= 33g
The statement, that describes grams of potassium (K) contain 5.11 × [tex]10^{22}[/tex] atoms is "33.1 g."
An atom is a fundamental particle of matter that contains at least one proton.
1 mole will be of 6.022 × [tex]10^{23}[/tex] atoms
Then,
[tex]= 5.11*10^{22} \;atoms\;.\;\frac{1\;mol}{6.022*10^{23} \;atoms} \;.\;39.098\;g/mol\\\\= 33.171\;g[/tex]
≈ 33.1 g
As a result, 33.1 g of K contains 5.11 × [tex]10^{22}[/tex] atoms.
Hence, the correct option is 33.1 g.
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