Question

Calculate the mass in grams of 2.56 ×10-3 moles of iron​

Answer 1

1.38×10-1g

Step-by-step explanation:

n×M

2.56×10-3 ×27 ×2

Answer 2

0.143 grams

Step-by-step explanation:

The molar mass of iron is 55.845 g/mole

Multiply the molar mass by the moles. moles cancel during the multiplication and grams remain, giving the answer.