Question

calculate the formula of unit masses of CaO ang MgO​

Answer 1

Answer:

The formula unit mass of MgO is 40 g

Explanation:

Formula unit mass is defined as the sum of the mass of all the atoms each multiplied its atomic masses that are present in the empirical formula of a compound. It is expressed in amu.

We know that:

b) MgO

Atomic mass of Mg = 24 amu

Atomic mass of O = 16 amu

Formula mass of MgO = ( 1 x 24) + ( 1 x 16) = 24 + 16 = 40 g

Thus the formula unit mass of MgO is 40 g and CaCl2 is 111 g.

Answer 2

Answer:

Formula unit mass is defined as the sum of the mass of all the atoms each multiplied its atomic masses that are present in the empirical formula of a compound. It is expressed in amu. Thus the formula unit mass of MgO is 40 g and CaCl2 is 111 g.