Determine the molar mass for the following elements:
ca
xe
fe
au

Molar mass of the following elements are :

Ca = 40.078 g/mol

Xe = 131.293 g/mol

Fe = 55.8455 g/mol

Au = 196.966 g/mol

Explanation:

Molar Mass  = It is the mass of 1 mole of a particular atom.

Look at the following point :

Atomic mass : It is the mass of single atom . It is the sum of masses of the subatomic particles(proton , neutron and electron) present in the atom. It is exactly equal to 1/12 of mass of C-12 atom.

Atomic mass is expressed in amu.

Mole =  It is the quantity which represent the amount of particle present in 12 gram of C-12.

Atomic mass(amu) into grams:

1 gram of C-12 = 12 atoms of C

mass of 1 atom of C =

gram

So , 1 amu =  

gram

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