What is the molar mass of mg(no3)2? explain how you calculated this value.

Explanation:

Molar mass of a substance means the sum of atomic masses of each element present in the substance.

For example, in there is one magnesium atom, two nitrogen atoms and six oxygen atoms.

Therefore, molar mass of is calculated as follows.

  Molar mass = mass of Mg + mass of N atoms + mass of oxygen atoms

                      = 24.30 g/mol + (2 \times 14.00)g/mol + (6 \times 15.99)

                      = (24.30 + 28 + 95.94) g/mol

                      = 148.24 g/mol  

Thus, we can conclude that molar mass of is 148.24 g/mol.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.