Empirical Formulae

What is the empirical formula of a substance with the molecular formula C₂H₄?

• C₂H₂

• C₂H₂

• C₁H₁

• CH₂

Tags

NGSS.MS-PS1-1

What is the empirical formula of a substance with the molecular formula NaCl?

• Na₂Cl

• NaCl₂

• NaCl

• Na₂Cl₂

What is the empirical formula of a substance with the molecular formula X₂₀Y₁₅?

• X₁₀Y₁₅

• X₅Y₃

• X₄Y₃

• X₂₀Y₁₅

Tags

NGSS.MS-PS1-1

What is the empirical formula of a substance with the molecular formula Se₈F₁₂?

• Se₈F₁₂

• Se₂F₃

• Se₄F₃

• SeF

What is the empirical formula of this substance?

• C₂H₃

• CH₃

• C₂H₆

• C₂H₂

Tags

NGSS.HS-PS1-1

What is the empirical formula for hydrogen peroxide (H₂O₂)?

• H₂O

• H₂O₂

• HO

• HO₂

Which pair has the same empirical formula?

• NaCrO₄ and Na₂Cr₂O₇
• C₂H₄O₂ and C₆H₁₂O₆
• C₃H₆O₃ and C₂H₆O₂
• CH₄ and C₂H₆

Napthalene has the chemical formula C₁₀H₈. What would be the empirical formula?

• C₁₀H₈

• C₅H₄

• C₂₀H₁₆

• CH₂

• C₄H₃

Glucose has the formula C₆H₁₂O₆. Maltose has the chemical formula C₁₂H₂₂O₁₁. Do the have the same empirical formula?

• Yes

• No

Which of these is NOT an empirical formula?

• CH2

• C2H5

• C6H4

• C3H7

• C5H17