+0  
 
0
3004
1
avatar
The mass of a single rhodium atom is 1.71E-22 grams. How many rhodium atoms would there be in 238 milligrams of rhodium?
 Mar 9, 2014
 #1
avatar+135 
0
personunknown:

The mass of a single rhodium atom is 1.71E-22 grams. How many rhodium atoms would there be in 238 milligrams of rhodium?



Hi unknown person!

The number of atoms is the total mass divided by the mass of 1 atom.

238 milligram / 1.71E-22 gram

0.238 gram / 1.71x10 -22 gram

(0.238 / 1.71) x 10 22

0.139 x 10 22

1.39 x 10 21
 Mar 9, 2014

2 Online Users

avatar