Measurements show that 1.0 g of iron (fe) contains 1.1 x 1022 fe atoms. how many fe atoms are in 4.9 g of fe, which is the total amount of iron in the body of an average adult?

Answer : The number of iron atoms present in 4.9 grams of iron are,

Explanation : Given,

As we are given that 1.0 grams of iron contains iron atoms.

Now we have to determine the number of iron atoms in 4.9 grams.

As, 1.0 gram of iron contains iron atoms

So, 4.9 gram of iron contains iron atoms

Therefore, the number of iron atoms present in 4.9 grams of iron are,