Mol-Mol Stoichiometry

Given the reaction: 4Al + 3O₂ --> 2Al₂O₃

How many moles of Aluminum oxide, Al₂O₃, can you produce if you have 2 moles of Al?

• 3 mole

• 2 mole

• 1 mole

• 0.5 mole

Tags

NGSS.MS-PS1-5

How many moles of KCl is produced when 6.75 moles of O₂ is also produced?

• 2

• 3.5

• 4.5

• 6.75

Fe₂O₃ + 3H₂ → 2Fe + 3H₂O

How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe

• 6 moles Fe

• 9 moles Fe

• 2 moles Fe

Tags

NGSS.MS-PS1-5

How many moles of S₈ is needed to produce 12 moles of SO₃?

• 1

• 1.5

• 2

• 12

Tags

NGSS.HS-PS1-7

dough + 2 cups cheese + 1 cup sauce + 8 pineapples--> 1 pizza At the store I buy a pack of 2 doughs and a bag with 6 cups of cheese: what is my limiting reactant in making my pizza?

• The sauce

• the cheese

• The dough

• The pineapples

Tags

NGSS.MS-PS1-5

CaCl₂ + 2Na --> 2NaCl + Ca With 2.2 moles of CaCl2, how much Ca can be produced? and how much NaCl can be produced?

• 8 Ca and .2 NaCl

• 4.8 Ca and NaCl

• 2.2 Ca and 4.4 NaCl

• 2 Ca and 9 NaCl

Tags

NGSS.HS-PS1-7

4Al + 3O₂ --> 2Al₂O₃

_{If I have 8 moles of} Al _{and 5 moles of} O_{2 , which one will be my limiting reactant in making} 2Al₂O₃

• Al

• Al2O3

• O2

• no limiting reactant

For the Balanced Reaction: 3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?

• 3mol Mg / 2 mol Fe

• 2 mol Mg/ 3 mol Fe

• 1 mol Fe/ 2 mol Fe

• 3 mol MgO / 2 mol Fe

The quantitative relationship between the amount of reactants and products in a chemical reaction is called?

• mole ratio

• stoichiometry

• molar mass

• coefficient

Tags

NGSS.HS-PS1-7

Which of the following is NOT a type of stoichiometric conversion?

• mole to mole

• mole to mass

• mass to molecule

• mass to mass