Moles Honors Review

What are the units for molar mass?

• g

• g/mol

• mol

• L

What can be used to find the percent composition of a substance?

• empirical formula

• the molar mass

• the atom arrangement

• the calculator

Tags

NGSS.MS-PS1-1

• Avogadro's Number

• The molar mass

• the number of neutrons

• The atomic number of each element.

Find the empirical formula for the following elements:

26.4% Carbon, 3.3% Hydrogen, 70.3% Oxygen

Tags

NGSS.HS-PS1-7

What is the percent composition of Oxygen in water?

• 10%

• 20%

• 80%

• 90%

Tags

NGSS.HS-ESS2-5

How many grams of oxygen are needed to make 12 g of Iron (II) oxide?

• 4.0 g O

• 16 g O

• 2.7 g O

• 71.9 g O

Tags

NGSS.HS-PS1-7