Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P. A lack of this vitamin in the diet can lead to anemia. Cyanocobalamin is the form of the vitamin found in vitamin supplements. What is the mass of 0.60 mol cyanocobalamin?

812.3 g

Explanation:

Let's determine the molar mass for Vitamin B12, cyanocobalamin.

C₆₃H₈₈CoN₁₄O₁₄P

12 g/mol . 63 + 1 g/mol . 88 + 58.93g/mol + 14 g/mol . 14 + 16g/mol . 14 + 30.97g/mol = 1354 g/mol

Now we can find out the mass → 0.60 mol . 1354 g/1mol = 812.3 g

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8