The molar mass of heptane is approximately 100.21 g/mol.
Heptane is an alkane with the chemical formula C7H16. To calculate its molar mass, we need to find the molar masses of carbon and hydrogen and then sum them based on the formula.
The atomic mass of carbon (C) is about 12.01 g/mol, and since there are 7 carbon atoms in heptane, that contributes:
7 carbon atoms x 12.01 g/mol = 84.07 g/mol
The atomic mass of hydrogen (H) is approximately 1.01 g/mol. Since there are 16 hydrogen atoms in heptane, that contributes:
16 hydrogen atoms x 1.01 g/mol = 16.16 g/mol
Now we can add these two values together to find the total molar mass of heptane:
84.07 g/mol + 16.16 g/mol = 100.21 g/mol
Therefore, the molar mass of heptane is 100.21 g/mol.