Empirical Formula and Molecular Formula Introduction

What is an empirical formula?

• The molecular weight of a compound

• The simplest ratio of atoms in a compound

• The structural arrangement of atoms

• The total number of each type of atom in a compound

What is a molecular formula?

• The molecular weight of a compound.

• The simplest ratio of atoms in a compound.

• The structural arrangement of atoms in a compound.

• The number of each type of atom in a compound.

Ethene is made up of​ (a)   carbons and​ (b)   hydrogens.

• four
• eight
• one
• two
• twelve
• six

What is the molecular formula of cyanuric triazide?

(a)  

What is the empirical formula of cyanuric triazide?

• C₃N₁₂

• CN₄

• C₂N₆

• C₃N₄

If a molecular formula cannot be simplified further, what is true about its empirical formula?

• It is different from the molecular formula

• It has more atoms than the molecular formula

• It is the same as the molecular formula

• It is always CH2

What is the largest number you can divide the subscripts of C₅H₁₀O₅ by to get its empirical formula?

• Two

• Three

• Four

• Five

Organize the given chemical formulas based on having the empirical formula of C₃H₆O.

Groups:

(a) C₃H₆O

,

(b) Other