wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What is the number of zinc atoms in a piece of zinc weighing 10 g ? (Atomic mass of Zn = 65 u)

Open in App
Solution

Mass of zinc = 10g
gram atomic mass of zinc = 65g
We know that one mole of zinc contains 6.022 × 1023 atoms of zinc.
65g of zinc contain = 6.022 × 1023 atoms
Therefore, 10g of zinc contain = 10 × 6.022 × 1023/65 = 9.264 × 1022 atoms

Hence, 10 grams of zinc contain 9.264 × 1022 atoms.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mole and Mass
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon