Chapter 1: Problem 45
How many moles of atoms are present in onc mole of \(\mathrm{CII}_{3} \mathrm{COOII}\) molecule? (1) 2 moles of \(\mathrm{C}\) atoms, 4 moles of \(\mathrm{H}\) atoms, 2 moles of \(\mathrm{O}\) atoms (2) 1 mole of \(C\) atoms, 2 moles of \(\mathrm{H}\) atoms, 1 mole of \(\mathrm{O}\) atoms (3) 2 moles of \(\mathrm{C}\) atoms, 3 moles of \(\mathrm{H}\) atoms, 2 moles of \(O\) atoms (4) None
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.
molecular formula
In our example, the molecular formula is \(\text{CII}_{3}\text{COOII}\). This needs to be carefully read to identify how many of each type of atom it contains.
Such formulas indicate the exact number of atoms in the smallest unit of the compound. Thus, knowing how to interpret them is the key to solving the question correctly.
chemical elements
Understanding these symbols helps in recognizing how many atoms of each type are present in a molecule.
When breaking down the given formula \(\text{CII}_{3} \text{COOII}\), we see the components are carbon (C), hydrogen (H), and oxygen (O).
Recognizing these elements helps streamline the counting process and makes the problem manageable.
mole concept
The beauty here is that if you have a molecular formula, like \(\text{CII}_{3} \text{COOII} \), understanding and using the mole concept allows you to calculate the number of atoms in a given mole of a substance easily.
In one mole of our molecule, we simply count the number of each type of atom specified. Thus, 4 moles of Carbon, 4 moles of Hydrogen, and 2 moles of Oxygen in this case.
atom counting
For the exercise, you first recognize \(\text{CII}_{3}\) gives us 3 Carbon atoms, and \(\text{COOII}\) should mean 1 more Carbon, 2 Oxygen, and potentially a typo for Hydrogen, but we'll treat it carefully by hypothesizing 4 Hydrogens.
Summing these gives us the counts for each element. If counting seems confusing, practice with simpler molecules like \(H_2O\) to build confidence.
Always recheck your work to avoid mistakes, which is critical in this type of exercise.