Question

what is the massin grams of 0.25 mol copper? Cu= 63.5 amu​

Answer 1

Answer:

1 atom of copper must be converted in moles to express it as a quantity that can be converted into grams (our second step). Avogadro's Number (1 mole=6.022×1023particles) and the relative atomic mass of copper (1 mole of copper = 63.546 g) are the equalities required to make this conversion.

use this

this will help you

Answer 2

Answer:

Mass of 1 mol of Cu = 63.5 g

Mass of 0.25 mol of Cu = 0.25 × 63.5

= 15.875 g