Question

What is the mass of 2 moles of 238 u?

Answer 1

use this formula mass = moles x molar mass

Answer 2

Mass of 2 moles of
`^(238)\textrm{U}` is 476.1 g

Step-by-step explanation:

• We know that number of moles of an atom is ratio of mass of the atom to it's atomic weight.
• Atomic weight of
  `^(238)\textrm{U}` is 238.05 g/mol
• So, mass of 1 mol of
  `^(238)\textrm{U}` atom is 238.05 g
• Hence mass of 2 moles of
  `^(238)\textrm{U}` =
  `(2mol* 238.05g/mol)=476.1 g`

• Hence mass of 2 moles of
  `^(238)\textrm{U}` is 476.1 g