The pair of species having same percentage of carbon is: a)CH3COOH and...
The pair of species having the same percentage of carbon is a) CH3COOH (acetic acid) and C6H12O6 (glucose).
Explanation:
- Carbon is an essential element in organic compounds, and the percentage of carbon can vary between different compounds.
- To determine the percentage of carbon in a compound, we need to calculate the molar mass of carbon in the compound and divide it by the molar mass of the entire compound.
- In acetic acid (CH3COOH), we have 2 carbon atoms, 4 hydrogen atoms, and 2 oxygen atoms. The molar mass of carbon is 12 g/mol, hydrogen is 1 g/mol, and oxygen is 16 g/mol. Therefore, the molar mass of acetic acid is:
(2 * 12) + (4 * 1) + (2 * 16) = 60 g/mol
- The percentage of carbon in acetic acid can be calculated as:
(2 * 12) / 60 * 100 = 40%
- In glucose (C6H12O6), we have 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. Using the molar masses of carbon, hydrogen, and oxygen, the molar mass of glucose is:
(6 * 12) + (12 * 1) + (6 * 16) = 180 g/mol
- The percentage of carbon in glucose is:
(6 * 12) / 180 * 100 = 40%
- Therefore, both acetic acid and glucose have the same percentage of carbon, which is 40%.
Summary:
- Acetic acid (CH3COOH) and glucose (C6H12O6) have the same percentage of carbon, which is 40%.
- This is because both compounds contain carbon atoms in the same ratio, resulting in the same percentage when calculated based on their molar masses.