The relative atomic mass of Calcium : 40 g/mol
Further explanation
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
/ the relative atomic mass(Ar) :
[tex]\tt mol(n)=\dfrac{mass(m)}{Ar}[/tex]
Calcium (Ca) :
moles = 0.4
mass = 16 g
[tex]\tt Ar=\dfrac{mass}{mol}=\dfrac{16}{0.4}=40~g/mol[/tex]
