Question

how many moles of iron atom are present in 1.68 gram of carbon ​

Answer 1

Answer:

0.14 mol

Explanation:

12g - 1mol

1.68g - ? moles(consider as x)

By unitary method,

12x = 1.68

x = 1.68 ÷12

x = 0.14

Answer 2

Answer:

1.81×1022 moles of iron atom present in 1.68 gram of carbon