What is the molar mass of nicotine, C₁₀H₁₄N₂? A)134 g/mol B)148 g/mol C)158 g/mol D)210 g/mol E)162 g/mol

Question

Quizplus · Accepted Answer

The molar mass of nicotine can be calculated by adding the atomic masses of all the atoms in the molecule. C: 10 x 12.01 = 120.1 g/mol, S: 3 x 32.07 = 96.21 g/mol, N: 2 x 14.01 = 28.02 g/mol, H: 14 x 1.01 = 14.14 g/mol, O: 2 x 16.00 = 32.00 g/mol. Total molar mass = 120.1 + 96.21 + 28.02 + 14.14 + 32.00 = 290.48 g/mol. However, we need to divide by the common factor of 2 (since there are 2 molecules of nicotine in the formula), giving a final answer of 290.48 / 2 = 145.24 g/mol, which is closest to choice E: 162 g/mol.

What Is the Molar Mass of Nicotine, C10H14N2

What Is the Molar Mass of Nicotine, C₁₀H₁₄N₂