Question

What is the mass of 2 moles of 238 u?

Answer 1

use this formula mass = moles x molar mass

Answer 2

Answer:

Mass of 2 moles of $^{238}\textrm{U}$ is 476.1 g

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 $^{238}\textrm{U}$ = $(2mol\times 238.05g/mol)=476.1 g$

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