Question

Calculate the mass of one atom of zinc in grams. (Hint: g/particle)

Answer 1

Answer:
`10.17* 10^(-23)g`

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number
`6.023* 10^(23)` of particles.

To calculate the number of moles, we use the equation:

`\text{Number of moles}=\frac{\text{Given atoms}}{\text{Avogadro's number}}=(1)/(6.023* 10^(23))=0.16* 10^(-23)atoms`

1 mole of zinc weighs = 65.38 g

`0.16* 10^(-23)` moles of Zinc weigh =
`(63.58)/(1)* 0.16* 10^(-23)=10.17* 10^(-23)g`

Thus mass of one atom of Zinc weigh
`10.17* 10^(-23)g`