Empirical and Molecular Formula

Front

What is the definition of subscript?

Back

The little number that tells the number of atoms for each element.

Front

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

Back

C₆H₁₂O₆

Front

What is the empirical formula for the molecular formula C₅H₁₂?

Back

C₅H₁₂

Front

Which pair has the same empirical formula: NaCrO₄ and Na₂Cr₂O₇ or C₂H₄O₂ and C₆H₁₂O₆?

Back

C₂H₄O₂ and C₆H₁₂O₆

Front

What is the empirical formula for the molecular formula C₆H₁₂?

Back

C₃H₆

Front

Define empirical formula.

Back

The simplest whole number ratio of atoms of each element in a compound.

Front

Define molecular formula.

Back

The actual number of atoms of each element in a molecule of a compound.

Front

How do you calculate the molecular formula from the empirical formula?

Back

Multiply the subscripts in the empirical formula by a whole number to match the molecular mass.

Front

What is the empirical formula of C₆H₁₂O₆?

Back

C₁H₂O₁.

Front

What is the significance of subscripts in chemical formulas?

Back

They indicate the number of atoms of each element in a molecule.