Answer:
27.6 %.
Explanation:
- Acetone has the molecular formula (C₃H₆O).
- The molar mass of acetone is the summation of the atomic mass of the elements forming it multiplied by its number of atoms.
Atomic mass of C = 12.011 g/mol.
Atomic mass of H = 1.008 g/mol.
Atomic mass of O = 15.999 g/mol.
- The molar mass of acetone = [(3 x atomic mass of C) + (6 x atomic mass of H) + (Atomic mass of O)] = [(3 x 12.011 g/mol) + (6x 1.008 g/mol) + (15.999 g/mol)] = 58.08 g/mol.
- The mass % of any element = [(no, of the element atoms x atomic mass of the element) / molar mass of the compound] x 100.
∴ The mass % of O = (Atomic mass of O / molar mass of acetone) x 100 = [(15.999 g/mol) / (58.08 g/mol)] = 27.6 %.
Scientific names follow a specific set of rules. Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species.planation:
Answer:
<h2>both of them</h2>
Explanation:
<h3>I hope it's helpful for you ✌</h3>