1. Determine the mass, in grams, of 0.335 moles of Mn (1 mol of Mn has a mass of 54.94 g).

Answer 1

The equation for a mole is...

mole = grams / molecular weight

The molecular weight is the same as the atomic weight of the element (Mn = 55 amu)

Fill in what you know

0.335 mol Mn = X g / 55

Solve for x...

0.355 x 55 = 19.5 grams Mn