Question

calculate the number of hydrogen atoms in a 90.0g sample of camphor c10h16o. be sure your answer has a unit symbol if necessary, and round it to 3 significant digits.

Answer 1

To calculate the number of hydrogen atoms in a 90.0g sample of camphor, determine the number of moles of camphor and use the chemical formula to calculate the number of hydrogen atoms.

Step-by-step explanation:

To calculate the number of hydrogen atoms in a 90.0g sample of camphor, we need to first determine the number of moles of camphor.

Using the molar mass of camphor (C10H16O), which is 152.23 g/mol, we can calculate the number of moles:

moles = mass / molar mass = 90.0g / 152.23 g/mol = 0.59 mol

Next, we can use the chemical formula of camphor to determine the number of hydrogen atoms. In 1 molecule of camphor, there are 16 hydrogen atoms.

Therefore, in a 90.0g sample of camphor, there are 0.59 mol x 6.022 x 10^23 molecules/mol x 16 hydrogen atoms/molecule = 6.02 x 10^23 hydrogen atoms (rounded to 3 significant digits).