Empirical Formula

3.245 g of a compound containing titanium and chlorine is separated into elements. If 0.819 g of the sample is titanium, what is the empirical formula of the compound? HINT: find the mass of chlorine first.

• TiCl₄

• TiCl

• TiCl₃

• TiCl₂

Tags

NGSS.MS-PS1-1

A compound is 52.14%C, 13.13%H, and 34.73% O by mass. What is its empirical formula?

• CH₃OH

• CH₃CH₂OH

• CH₃CH₂CH₂OH

• CHO

Tags

NGSS.HS-PS1-1

A compound is 77.27% U, 10.4% O, and 12.3% F. What is its empirical formula?

• UOF

• UO₂F₂

• U₂OF

• U₂O₂F

Tags

NGSS.HS-PS1-1

Determine the empirical formula for a compound that is 63.53 % Fe and 36.47 % S by mass.

• Fe₂S₃

• FeS

• FeS₂

• Fe₃S₂

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

Which of these is NOT an empirical formula?

• CH2

• C2H5

• C6H4

• C3H7

• C5H17

What is the empirical formula of this substance?

• C₂H₃

• CH₃

• C₂H₆

• C₂H₂

Tags

NGSS.HS-PS1-7

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

• Na₂Cl

• NaCl₂

• NaCl

• Na₂Cl₂

Tags

NGSS.MS-PS1-1

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

• C₂H₂

• C₂H₂

• C₁H₁

• CH₂