Stoichiometry Quiz

How many moles are in 36 grams of water (H2O)?

• 36 moles

• 2 moles

• 10 moles

• 4 moles

What is the mass of 2 moles of carbon dioxide (CO2)?

• 88.02 g

• 72.63 g

• 26.98 g

• 44.01 g

How many molecules are in 2 moles of oxygen (O2)?

• 5.6 x 10^24

• 3.2 x 10^22

• 2.5 x 10^23

• 1.2044 x 10^24

Tags

NGSS.HS-PS1-7

What is the molar mass of sodium chloride (NaCl)?

• 75.36 g/mol

• 23.00 g/mol

• 40.08 g/mol

• 58.44 g/mol

How many grams are in 3 moles of sulfur (S8)?

• 1000 grams

• 500 grams

• 768 grams

• 24 grams

What is the mass of 4.5 moles of calcium carbonate (CaCO3)?

• 789.6 g

• 36.5 g

• 205.2 g

• 450.405 g

How many moles are in 64 grams of methane (CH4)?

• 4 moles

• 2 moles

• 8 moles

• 16 moles

What is the molar mass of ammonia (NH3)?

• 12.01 g/mol

• 28.02 g/mol

• 40.08 g/mol

• 17.03 g/mol

How many molecules are in 5 moles of carbon monoxide (CO)?

• 500 molecules

• 1 x 10^23 molecules

• 10 molecules

• Approximately 3.011 x 10^24 molecules

What is the mass of 2.5 moles of potassium permanganate (KMnO4)?

• 250 grams

• 150.3 grams

• 600.7 grams

• 394.1 grams

Tags

NGSS.HS-PS1-7