EMPIRICAL FORMULA AND MOLECULAR FORMULA

What is the definition of empirical formula

• A chemical formula that shows all elements in a molecule

• A chemical formula that shows number of moles all elements in a molecule

• A chemical formula that shows simplest ratio of all elements in a molecule

• A chemical formula that shows mass of all elements in a molecule

What is the meaning of molecular formula?

• A chemical formula that show actual number of moles of each element in a molecule

• A chemical formula that shows actual number of charge of each element in a molecule

• A chemical formula that shows actual number of electrons of each element in a molecule

• A chemical formula that shows actual number of atoms of each element in a molecule

Which steps involve when determine empirical formula

• calculate number of moles

• calculate mass of the element

• calculate oxidation number

• calculate concentration

Tags

NGSS.HS-PS1-7

To get the empirical formula, we need to determine the mass in ...............

• moles

• grams

• percentage

• molar

Tags

NGSS.HS-PS1-7

Ibuprofen by mass composition is 75.69% C, 8.80% H and 15.51% O . Determine empirical formula. Can we assume the mass of Ibuprofen is 75.69g

• YES

• NO