Question

आणविक द्रव्यमान cl2 ​

Answer 1

Answer:

Calculate the number of iron atoms in a piece of iron weighing 2.8g (Atomic mass of iron =56u). We know that 1 mole of iron element contains 6.022×1023 atoms of iron. Thus, a piece of iron metal having a mass of 2.8 grams contains 3.011×1022 atoms of iron.