Calculations Moles and Mass

How many moles are in 19.82 g Mg? 

• 1.226mol Mg
• 481.7mol Mg
• 1.000mol Mg
•  0.8156 mol Mg

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

Tags

NGSS.HS-PS1-7

Determine the molar mass for carbon tetrachoride (CCl₄)

• 153.823 g/mol

• 118.37 g/mol

• 189.35 g/mol

• 47.464 g/mol

Avogadro's number is equal to one_____.

• kilogram

• gram

• kelvin

• mole

What is the molar mass of Gold (III) chloride (AuCl₃)?

• 196.967 g

• 626.354 g

• 232.42 g

• 303.326 g

How many grams are in 3.33 mol of Potassium Sulfide (K₂S)?

• 367 g

• 454 g

• 238 g

• 132 g

Tags

NGSS.HS-PS1-7

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

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

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

• 1 mol = 22.4 L 
• 1 mol = 44.01 g
• 1 mol = 6.02x10²³ atoms
• more than one

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

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

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