Limiting Reactant & Percent % Yield CAAP

​ (a)   K + ​ (b)   MgBr₂ → ​ (c)   KBr + ​ (d)   Mg

• 2
• 1
• 0
• 3
• 4
• 5
• 7

​ K + ​ MgBr₂ → ​ KBr + ​ Mg

The reaction above takes place with 2.41 moles of potassium.

How many grams of potassium bromide could be produced?

___ grams of potassium bromide

​ K + ​ MgBr₂ → ​ KBr + ​ Mg

The reaction above takes place with 124 grams of magnesium bromide.

How many grams of potassium bromide could be produced?

___ grams of potassium bromide

Tags

NGSS.HS-PS1-7

​ K + ​ MgBr₂ → ​ KBr + ​ Mg

124 grams of magnesium bromide reacts with 2.41 moles of potassium to produce potassium bromide.

The limiting reactant is ​ (a)   .

• MgBr2
• K
• KBr
• Mg

​ K + ​ MgBr₂ → ​ KBr + ​ Mg

The reaction above takes place with 124 grams of magnesium bromide and 2.41 moles of potassium to create 87 grams of potassium bromide. What is the percent yield of potassium bromide rounded to the ones place?

___ % yield of potassium bromide

• 4
• 3
• 2
• 0
• 1
• 5
• 6
• 7
• 8

Tags

NGSS.HS-PS1-2

Fe + O₂ → Fe₂O₃

The reaction above takes place with 4.23 moles of oxygen gas.

How many moles of iron (III) oxide could be produced?

___ moles of iron (III) oxide

Tags

NGSS.HS-PS1-7

Fe + O₂ → Fe₂O₃

The reaction above takes place with 455 grams of iron.

How many moles of iron (III) oxide could be produced?

___ moles of iron (III) oxide

Tags

NGSS.HS-PS1-7

Fe + O₂ → Fe₂O₃

The reaction above takes place with 455 grams of iron and 4.23 moles of oxygen gas.

The amount of iron (III) oxide produced was found to be 1.6 moles.

​ (a)   is the limiting reactant

• Fe
• Fe2O3
• O2
• 4.07 moles
• 2.8 moles

Fe + O₂ → Fe₂O₃

The reaction above takes place with 455 grams of iron and 4.23 moles of oxygen gas.

The amount of iron (III) oxide produced was found to be 1.6 moles.

What is the percent yield rounded to the nearest ones?

___ % yield

Tags

NGSS.HS-PS1-7