The molar mass of Z is 20g. Find the mass of 1 atom of Z.
2.65×10-23g
3.32×10-23g
5.32×10-23g
4.32×10-23g
1 mole = 6.022×1023atoms
Molar mass = 20g
So, 6.022×1023atoms of Z weigh 20g.
1 atom weigh 3.32×10−23 g.
The mass of a single atom of an element X is 2.65×10−23 g. What could this element be?