The Mole Review

What is the empirical formula of the following molecular formula:  C₃H₆

• C₃H₆
• CH₂
• C₂H₄
• CH₃

Name the following hydrate:  NaCl * 5H₂O

• sodium chloride 
• sodium monochloride pentahydrate
• sodium chloride pentahydrate
• pentahydrate

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 24 molecules
• 180 molecules
• 180 g
• 6.02 x 10²³ molecules

How do we name a hydrate?

• Add "water" to the end of the chemical name
• Use a prefix and add hydrate
• Do nothing, it does not change

What is the molar mass of Hydrogen Peroxide (H₂O₂)?

• 48 g/mole
• 34.02 g/mole
• 36.5 g/mole
• 35.5 g/mole

Name the following ionic compound: MgSO₄*7H₂O

• magnesium sulfate * hexahydarte
• magnesium sulfate hexahydarte
• magnesium sulfate heptahydrate
• magnesium sulfate* heptahydrate

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

All of the following formulas are molecular formulas except

• C₁₂H₂₄O₁₂
• H₂O₂
• N₂O₂
• C₁₂H₂₄OH

Tags

NGSS.MS-PS1-1

Which of the following would have the highest number of moles?

• 4g CO₂
• 15g H₂O
• 22g NaCl
• 100g AgCl

Tags

NGSS.HS-PS1-7

How many grams are in 3.3 mol of Potassium Sulfide?

• 360 g
• 454 g
• 238 g
• 132 g

Tags

NGSS.HS-PS1-7