What is the molar mass of C13H18O2?
Understand the Problem
The question is asking for the molar mass of the compound with the molecular formula C13H18O2. To solve this, we will add the atomic masses of all the atoms in the formula, which includes 13 carbon (C) atoms, 18 hydrogen (H) atoms, and 2 oxygen (O) atoms.
Answer
The molar mass of C13H18O2 is approximately 206.32 g/mol.
Answer for screen readers
The molar mass of the compound C13H18O2 is approximately 206.32 g/mol.
Steps to Solve
- Identify atomic masses
We need to identify the atomic masses of each element in the compound:
- Carbon (C) has an atomic mass of approximately 12.01 g/mol.
- Hydrogen (H) has an atomic mass of approximately 1.01 g/mol.
- Oxygen (O) has an atomic mass of approximately 16.00 g/mol.
- Calculate total mass of carbon atoms
Now, we calculate the total mass contributed by the carbon atoms:
The compound has 13 carbon atoms. Thus, the total mass from carbon is:
$$
\text{Total mass of C} = 13 \times 12.01 \text{ g/mol}
$$
- Calculate total mass of hydrogen atoms
Next, we calculate the total mass from the hydrogen atoms:
The compound has 18 hydrogen atoms. Thus, the total mass from hydrogen is:
$$
\text{Total mass of H} = 18 \times 1.01 \text{ g/mol}
$$
- Calculate total mass of oxygen atoms
Now, we calculate the total mass from the oxygen atoms:
The compound has 2 oxygen atoms. Thus, the total mass from oxygen is:
$$
\text{Total mass of O} = 2 \times 16.00 \text{ g/mol}
$$
- Sum all the total mases
Finally, add the total masses of carbon, hydrogen, and oxygen to find the molar mass of the compound: $$ \text{Molar mass} = \text{Total mass of C} + \text{Total mass of H} + \text{Total mass of O} $$
Substituting the calculated values will yield the final molar mass.
The molar mass of the compound C13H18O2 is approximately 206.32 g/mol.
More Information
The molar mass is important in chemistry for understanding the quantities of substances involved in reactions. Molar mass is also useful for converting between grams and moles when measuring chemical substances.
Tips
- Forgetting to multiply the atomic mass by the number of atoms for each element.
- Mixing up the atomic masses of different elements.
- Incorrectly summing the total masses leading to an inaccurate molar mass.
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