Question

Which of the following has the greatest mass? 1 mole of uranium (U) 1 mole of oxygen (O) 1 mole of sodium (Na) 1 mole of chlorine (Cl)

Answer 1

Answer:

Uranium

Explanation:

Since all of the options have only 1 mole of each, simply compare their masses to find the greatest one. You'll find that Uranium is the greatest with about 238 amu.

Answer 2

To determine which has the greatest mass, we need to find out the molecular mass of each element:

Uranium (U) = 238 g/mol
Oxygen (O) = 16 g/mol
Sodium (Na) = 23 g/mol
Chlorine (Cl) = 35.45 g/mol

Therefore, if we have one mole of each element, the element with the greatest mass is 238 grams or Uranium.<span />