Empirical and Molecular Formulas

Empirical and molecular formulas are never the same for any compound.

• True

• False

Which of the following is the empirical formula of the compound?

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• 
• 
• 

Tags

NGSS.HS-PS1-7

If you know the empirical formula of the compound, then you know the smallest whole-number ratio of the elements in that compound.

• True

• False

Tags

NGSS.MS-PS1-1

The actual chemical formula for 3 compounds is shown below. Select the compound that has an identical empirical and molecular formula.

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• 
• 

A whole-number ratio exists between the molecular formula and the empirical formula of a compound.

• True

• False

What is the ratio of carbon to hydrogen atoms in both ethyne and styrene?

• 1:1

• 1:2

• 2:2

• 2:1