Molecular Formula

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

• ionic formula

• covalent formula

• empirical formula

• molecular formula

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

• CH₂O

• C₂H₄O₂

• C₄H₈O₄

• C₆H₁₂O₆

What is the molecular formula if the empirical formula is C₂H₅ and the molecular molar mass is 58.14 g/mol?

• C₂H₅

• C₄H₁₀

• C₁H_2.5

• C₄H₈

What is the molecular formula for a compound with the empirical formula: K₂SO₄ and a molecular mass of 696g.

• K₂SO₄ 

• K₈SO₁₆

• K₈S₄O₈ 

• K₈S₄O₁₆ 

Which of the following is the correct molecular formula for glucose?

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

• 4 carbon atoms, 11 hydrogen atoms, and 1 oxygen atom

• 7 carbon atoms, 14 hydrogen atoms, and 1 oxygen atom

• 7 carbon atoms, 11 hydrogen atoms, and 8 oxygen atoms

• 6 carbon atoms, 14 hydrogen atoms, and 3 oxygen atoms

Tags

NGSS.MS-PS1-1

How many nitrogen atoms are there?

• 4

• 8

• 10

• 20

Tags

NGSS.MS-PS1-1

How many phosphorus atoms are there?

• 0

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1