REDO - Empirical and Molecular Formula Reteach

Front

What is an empirical formula?

Back

An empirical formula represents the simplest whole-number ratio of atoms of each element in a compound.

Front

How do you determine the empirical formula from a molecular formula?

Back

To find the empirical formula, divide the subscripts in the molecular formula by their greatest common divisor.

Front

What is the empirical formula of N2S3?

Back

The empirical formula is NS.

Front

What is the empirical formula of Si2F6?

Back

The empirical formula is SiF3.

Front

Which of the following is an empirical formula: C6H12O6 or H2O?

Back

H2O is the empirical formula.

Front

What is the empirical formula of C2F6?

Back

The empirical formula is CF3.

Front

What is the difference between empirical and molecular formulas?

Back

The empirical formula shows the simplest ratio of elements, while the molecular formula shows the actual number of atoms in a molecule.

Front

How can you identify an empirical formula from a list of chemical formulas?

Back

Look for the formula with the smallest whole-number ratio of elements.

Front

What is the empirical formula of C2H6O12?

Back

The empirical formula is C1H3O6.

Front

What is the empirical formula of CaCl2?

Back

The empirical formula is CaCl2 (it is already in simplest form).