Mole Stoichiometry and Conservation of Mass

Mole Stoichiometry (Easy)

How many moles does 3.01 x 1023 atom of Neon contain?

• 0.3 moles

• 0.4 moles

• 0.5 moles

• 0.6 moles

Mole Stoichiometry (Easy)

How much is 0.5 mole of Neon equivalent to in grams?

• 9.09 g

• 10.09 g

• 11.09 g

• 12.09 g

Mole Stoichiometry (Easy)

How many moles are in 1.20 x 1024 molecules of H₂O?

• 2.06 moles

• 3.06 moles

• 4.06 moles

• 5.06 moles

Mole Stoichiometry (Easy)

How many grams are in 2.06 moles of H2O?

• 35.12 g

• 36.12 g

• 37.12 g

• 38.12 g

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Conservation of Mass (Medium)

__ C₄H₆O₃ + __ H₂O -> __C₂H₄O₂

What are the coefficients of the reactants C₄H₆O₃and H₂O respectively?

• 1 C4H6O3 , 1 H2O

• 1 C4H6O3 , 2 H2O

• 2 C4H6O3 , 1 H2O

• 2 C4H6O3 , 2 H2O

Conservation of Mass (Medium)

__ C₄H₆O₃ + __ H₂O -> __C₂H₄O₂

What is the coefficient of the product C₂H₄O₂?

• 1 C₂H₄O₂

• 2 C₂H₄O₂

• 3 C₂H₄O₂

• 4 C₂H₄O₂

Conservation of Mass (Hard)

__ Fe + __ O₂ → __ Fe₂O₃

What are the coefficients of the reactant Fe and O respectively?

• 1 Fe, 2 O2

• 2 Fe, 3 O2

• 4 Fe, 3 O2

• 1 Fe, 6 O2

Conservation of Mass (Hard)

__ Fe + __ O₂ → __ Fe₂O₃

What is the coefficient of the product Fe₂O₃?

• 1

• 2

• 3

• 4

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