2 years ago

How many grams of potassium (K) contain 5.11 x 10^22 atoms of potassium?

Chemistry

1 answer:

Darina [25.2K]2 years ago

7 0

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

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