Empirical

When calculating the empirical formula the mole ratio is given as follows: H₁O_3.5 What will the EF be?

• H₁O_3.5

• HO_3.5

• HO₄

• H₂O₇

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

• CO₂Li₃

• Li₂CO₃

• Li₃CO₂

• LiCO₅

A formula that shows the smallest whole-number mole ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.

• Empirical Formula

• Molecular Formula

• Stoichiometry

• Chemical Reaction

A compound is 56.58% K, 8.69% C, and 34.73% O by mass. What is its empirical formula.

• KCO

• K₂CO

• KCO₃

• K₂CO₃

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

• CH₃OH

• CH₃CH₂OH

• CH₃CH₂CH₂OH

• CHO

A compound is 27.7% Mg, 23.6% P, 48.7% O by mass. What is its empirical formula?

• MgPO₄

• Mg₃PO₄

• Mg₃(PO₄)₂

• Mg₂(PO₄)₃

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

• UOF

• UO₂F₂

• U₂OF

• U₂O₂F

A compound is 16.3% C, 32.1% Cl and 51.6% F by mass. What is the empirical formula?

• C₃Cl₂F₆

• C_1.5Cl F₃

• C₂Cl₃F₆

• C₃Cl₆F₂

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

• Fe₂S₃

• FeS

• FeS₂

• Fe₃S₂

What is the empirical formula of a compound that is 40% sulfur and 60% oxygen by mass?