Empirical Formula and Molecular Formula

What is the empirical formula for C₄H₆?

• CH

• CH₃

• C₂H₃

• C₄H₆

What is the empirical formula if you have 81.82% carbon and 18.18% hydrogen?

• C3H8

• CH4

• C2H2

• C4H10

Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?

• C₂H₃O₂

• CH₂O

• C₂H₄O₂

• C₃H₈O₃

What is the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?

• CO₂Li₃

• Li₂CO₃

• Li₃CO₂

• LiCO₅

Which of the following is considered an empirical formula?

• CH₃COOH

• C₆H₁₂O₆

• H₂O

What is the empirical formula for C₃H₈

• CH

• C₃H₈

• C₆H₁₆

• CH_2.7

Do the diagrams have the same molecular formula?

• Yes

• No

Tags

NGSS.HS-PS1-7

Do the diagrams have the same empirical formula?

• Yes

• No

Tags

NGSS.HS-PS1-7

Do the diagrams have the same empirical formula?

• Yes

• No

Tags

NGSS.HS-PS1-7

The molecular and empirical formula of a compound are __________ the same.

• always

• sometimes

• never

• one and