Molar Ratio Independent Practice

Bornite, Cu₃FeS₃, is a copper ore used in the production of copper. When heated, the following reaction occurs:

2 Cu₃FeS₃(s) + 7 O₂(g) --> 6 Cu(s) + 2 FeO(s) + 6 SO₂(g)

What is the mole ratio of iron (II) oxide to sulfur dioxide?

• 2:7

• 2:6

• 6:2

• 7:2

Bornite, Cu₃FeS₃, is a copper ore used in the production of copper. When heated, the following reaction occurs:

2 Cu₃FeS₃(s) + 7 O₂(g) --> 6 Cu(s) + 2 FeO(s) + 6 SO₂(g)

If 450 moles of bornite are reacted, determine the number of moles of copper produced.

• 750 mol bornite

• 1350 mol bornite

• 1525 mol bornite

• 150 mol bornite

Tags

NGSS.HS-PS1-7

How many moles of hydrogen gas are needed to react completely with 2.0 moles of nitrogen gas?

3 H₂(g) + N₂(g) --> 2NH₃(g)

What is the mole ratio of hydrogen gas to nitrogen gas?

• 1:3

• 3:1

• 1:2

• 2:1

How many moles of hydrogen gas are needed to react completely with 2.0 moles of nitrogen gas?

3 H₂(g) + N₂(g) --> 2NH₃(g)

• 3 mol H₂

• 6 mol H₂

• 2 mol H₂

• 4.5 mol H₂

Tags

NGSS.HS-PS1-7

What are the coefficients if this following equation was balanced?

_?_ Al + _?_ O₂ --> _?_ Al₂O₃

• 2, 3, 1

• 3, 2, 1

• 1, 2, 3

• 4, 3, 2

Tags

NGSS.HS-PS1-7

How many moles of aluminum are required to react with 5.09 moles of oxygen?

4Al + 3O₂ --> 2Al₂O₃

• 5.09 mol Al

• 7.52 mol Al

• 6.79 mol Al

• 15.62 mol Al

Tags

NGSS.HS-PS1-7

What are the coefficients if the following equation was balanced?

_?_ C₄H₁₀ + _?_ O_{2 -->} _?_ CO₂ + _?_ H₂O

• 2, 5, 6, 2

• 2, 13, 8, 10

• 2, 7, 4, 10

Tags

NGSS.HS-PS1-7

In a lighter, butane is combusted according to the following equation.

2C₄H₁₀ + 13O_{2 -->} 8CO₂ + 10H₂O

How many moles of carbon dioxide are produced if 9.08 moles of water are produced?

• 6.79 mol CO₂

• 4.25 mol CO₂

• 7.26 mol CO₂

• 10.82 mol CO₂

What would be the coefficients if the following equation was balanced?

_?_ AlCl₃(aq) + _?_Na₂CO₃(aq) --> _?_Al₂(CO₃)₃(s) + _?_NaCl(aq)

• 2, 13, 8, 10

• 2, 3, 2, 3

• 2, 3, 1, 3

• 2, 3, 1, 6

Tags

NGSS.HS-PS1-7

Consider the following reaction,

2AlCl₃(aq) + 3Na₂CO₃(aq) --> Al₂(CO₃)₃(s) + 6NaCl(aq)

What is the precipitate?

• AlCl₃(aq)

• Na₂CO₃(aq)

• Al₂(CO₃)₃(s)

• NaCl(aq)

Tags

NGSS.HS-PS1-7