Mass% and Empircal Equations

What goes on the top of the equation for Mass%. (In the red box)

• Mass of the Element (Part)
• Mass of the Whole
  Mass of the Whole Compound
• Mass of half the elements
• Gary Busey

T/F
If 2 compounds have the same empirical formula, they are the same (same properties, structure, etc.)

• True
• False

What is the mass percentage of Carbon in Carbon dioxide?

• 27.3%
• 42.9%
• 57.1%
• 72.7%

What is 20% of 75?

• 15
• 60
• 6
• 1.5

Tags

CCSS.6.RP.A.3C

C₆H₁₂O₆ Is what type of formula?

• Molecular 
• Empirical
• Both

What goes on the bottom of the Mass % formula? (in the red box)

• Mass of the Part
• Mass of the Whole
• 42
• 100

T/F
A compounds molecular formula can be the same as its empirical formula

• True
• False

The molar ratio of a compound is found to be 1.5 C for every 2 H
What is the empirical formula of this compound

• C_1.5H₂
• C₃H₄
• C₂H
• C₆H₈

What is the empirical formula for C₃H₈

• CH
• C₃H₈
• C₆H₁₆
• CH_2.7

What is the empirical formula if you have 36.84% nitrogen and 63.16% oxygen?

• NO
• N₂O₃
• N₂O₄
• N₂O₅