The molar mass of caffeine, C8H10N4O2, can be calculated by adding up the atomic masses of all the atoms in the compound.
C: 12.01 g/mol (8 atoms)
H: 1.008 g/mol (10 atoms)
N: 14.01 g/mol (4 atoms)
O: 16.00 g/mol (2 atoms)
Molar mass = (12.01 g/mol x 8) + (1.008 g/mol x 10) + (14.01 g/mol x 4) + (16.00 g/mol x 2)
Molar mass = 96.08 g/mol + 10.08 g/mol + 56.04 g/mol + 32.00 g/mol
Molar mass = 194.20 g/mol
Therefore, the molar mass of caffeine is 194.20 g/mol, which is closest to 194 g.
Calculate the molar mass of caffeine, C8H10N4O2.
194.22 g
110.15 g
43.03 g
194 g
1 answer