Concept explainers
Interpretation:
The empirical formula for the given compound should be predicted.
Concept introduction:
The representation of atoms of a compound in simple whole number ratio is known as empirical formula.
Chemical formula or molecular formula represents the type of
The rules for determining empirical formula is given as follows:
- Determine the mass of elements in given compound.
- Calculate number of moles using molar mass of each compound or element.
- Divide each number of moles by smallest number of mole value calculated in second step.
- Round the value calculated in step 3 to nearest whole number.
Answer to Problem 161A
The empirical formula for given compound is
Explanation of Solution
Assuming the percentage is given by mass that means the elements are present in that much amount.
Mass of carbon = 6.09 g
Mass of barium = 69.58 g
Mass of oxygen = 24.32 g
Now, calculating the moles of carbon, barium, and oxygen using their molar mass as follows:
1. Now, dividing each mole value by smallest mole value as follows:
2. Thus, the empirical formula of given compound is
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