Chemistry
CT ASSIGNMENT 4 2
If an element is composed of two isotopes with the following percent composition and mass, what is the mass of one mol of the element?
|
percent composition |
|
mass |
|
49.55 |
|
45.00 |
|
|
|
48.00 |
If an element is composed of three isotopes with the following percent composition and mass, what is the mass of one mol of the element?
|
percent composition |
|
mass |
|
40.97 |
|
20.00 |
|
21.58 |
|
21.00 |
|
|
|
22.00 |
If an element has two isotopes of mass 30.00 and 33.00 and has an average mass of 32.32 , what is the percent by mass of the lighter isotope?