How many grams are there in one mole of benzene C6H6?1 point78 g0.0128 g100 g50 g

To find the number of grams in one mole of benzene (C6H6), you need to calculate the molar mass of benzene.

1. First, find the molar mass of each element in benzene. The molar mass of carbon (C) is approximately 12.01 g/mol and the molar mass of hydrogen (H) is approximately 1.01 g/mol.

2. Multiply the molar mass of each element by the number of atoms of that element in a molecule of benzene. Benzene has 6 carbon atoms and 6 hydrogen atoms, so:

   • For carbon: 12.01 g/mol * 6 = 72.06 g/mol
   • For hydrogen: 1.01 g/mol * 6 = 6.06 g/mol

3. Add these results together to find the molar mass of benzene:

   • 72.06 g/mol (for carbon) + 6.06 g/mol (for hydrogen) = 78.12 g/mol

So, there are approximately 78 grams in one mole of benzene. Therefore, the correct answer is 78 g.