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Worksheets1.2/S1.4.4 Empircal and Molecular Formula [SL IB Chemistry]s
Total questions: 11
Worksheet time: 9mins
What is the empirical formula?
The simplest ratio of atoms in a molecule
The number of each atom in a molecule
The molecular formula
The ratio of carbon and hydrogen atoms
What does the molecular formula show?
The simplest ratio of atoms in a molecule
The number of each atom in a molecule
The ratio of carbon and hydrogen atoms
The number of carbon and hydrogen atoms
What is the empirical formula of benzene?
C6H6
CH
C2H2
C3H3
Can you go from the empirical to the molecular formula?
Yes, by adding more information
Yes, by subtracting more information
No, it is not possible
No, unless given more information
What is the molecular formula of benzene?
C6H8
C6H7
C6H5
C6H6
How can you simplify the ratio in the MOLECULAR formula?
Divide all the subscripts by their greatest common divisor (GCD)
Subtract all the subscripts from each other
Add all the subscripts together
Multiply all the subscripts by their greatest common divisor (GCD)
What does the molecular formula indicate?
The mass of a molecule.
The shape and structure of a molecule.
The temperature at which a molecule boils.
The number and types of atoms present in a molecule.
Which of the following is considered an empirical formula?
CH3COOH
C6H12O6
H2O
Mg2Cl4
What is the empirical formula of this substance?
C2H3
CH3
C2H6
C2H2
