Molar Mass, Mole Conversion, and Percent Composition

the mass in grams of one mole of a substance

• molar mass

• percent composition

• Avogadro's number

• mole

Tags

NGSS.HS-PS1-7

a ratio of equivalent measurements used to convert a quantity from one unit to another

• Avogadro's number

• empirical formula

• molecular formula

• conversion factor

the SI base unit used to measure the amount of a substance

• molar mass

• mole

• hydrate

• percent composition

the percent by mass of each element in a compound

• molar mass

• Avogadro's number

• representative particle

• percent composition

• 25.13%

• 74.87%

• 20.11%

• 79.89%

Tags

DOK Level 2: Skill/Concept

• 88.81%

• 11.19%

• 89.11%

• 10.89%

Tags

DOK Level 2: Skill/Concept

What is the percent composition of chlorine in sodium chloride (NaCl)? (Atomic masses: Na = 22.99 g/mol, Cl = 35.45 g/mol)

• 60.66%

• 39.34%

• 50.50%

• 49.50%

Tags

DOK Level 2: Skill/Concept

• 1.25 moles

• 1.50 moles

• 1.75 moles

• 2.00 moles

How much would 3 moles of CO₂ equal?

• 132

• 33

• 404

What mass of calcium chlorate, Ca(ClO₃)₂, is equivalent to 0.750 moles of the substance?

• 155.24 grams

• 206.98 grams

• 128.65 grams