Answer:
Number of times a one pound (2.2 kg) block of iron can be split in half before it stops being iron
= 84.29 times
Explanation:
Atoms : It is the smallest indivisible particle of the matter .
The atom can not be further breakdown .
Here in this question , we have to find the number of atoms (because it is the last possible situation for breaking of atom)
Mole : The quantity of the substance that contain as many particles as present in 12 g of C-12.It is quantity which Avogadro number(N0) of particles
<u>1.First calculate the number of moles of Fe in 2.2Kg Block</u>
Mass of Iron (Fe) = 55.845 amu
Molar mass of Iron = 55.845 g
Given mass = 2.2 kg
1 kg = 1000 g
2.2 kg = 2200 g
moles = 39.39
atoms
<u>3.Calculate Number of time(n), the block is </u><u>split into -Half </u>
Take log both side ,
Solve for n, you get
n= 84.29 (convert it to nearest whole number)
n = 84 times
