For example, 100 g of MSG will contain 35.51/12.01 = 2.956 mol of C, 4.77/1.007 = 4.726 mol of H, 37.85/15.99 = 2.367 mol of O, 8.29/14.006 = 0.5918 mol of N, 13.60/22.98 = 0.5918 mol of Na.
Then all quantities will be divided by the smallest amount of moles.
0.59182.956=5C
0.59184.726=8H
0.59182.367=4O
0.59180.5918=1N
0.59180.5918=1Na
So, the empirical formula is C5H8O4NNa.
The molar mass of the empirical formula will be calculated.
(5×12.01)+(8×1.007)+(4×15.99)+14.006+22.98=169.05g/mol
The molecular formula of MSG is the same as the empirical formula C5H8O4NNa.
Answer: C5H8O4NNa
Comments
Leave a comment