Molecular and Empirical Formulas

Define empirical formula.

• formula with the lowest whole number ratios of the elements in a compound.

• formula for any compound that includes a Nobel gas.

• formula for calculating the limiting reagent of a reaction

• formula that shows how many of each type of atom are present in a single molecule.

Define molecular formula.

• formula with the lowest whole number ratios of the elements in a compound.

• formula for any compound that includes a Nobel gas.

• formula for calculating the limiting reagent of a reaction

• formula that shows how many of each type of atom are present in a single molecule.

Is the following formula molecular or empirical?

CH₃

• molecular

• empirical

• both

Is the following formula molecular or empirical?

H₂O₂

• molecular

• empirical

• both

Is the following formula molecular or empirical?

C₆H₁₂O₆

• molecular

• empirical

• both

Is the following formula molecular or empirical?

H₂O

• molecular

• empirical

• both

Write the empirical formula for: C₂H₄

• CH

• C₁H₄

• C₀H₂

• CH₂

Write the empirical formula for: C₆H₆

• CH

• C₀H₀

• C₀H₂

• C₃H₃

Write the empirical formula for: C₉H₁₈O₃

• C₂H₉O₁

• C₃H₆O

• C₆H₁₅O

• C₃H₃O

What elements can be found in Aspirin? C₉H₈O₄

• carbon

• hydrogen

• oxygen

• helium

Tags

NGSS.MS-PS1-1