Unit 6 Review

Unit 6 Review

Have Outs:

•Notes

•PAPER AND PENCIL

•Desmos Calculator

Open Ended

What are the roles of your teammates?

Review for In-Person

Look for KEY words: Expected, actual

Multiple Choice

How do you go from grams to moles?

• Molar Mass

• Molar Ratio

• Metric System

Multiple Choice

How do you go from moles to moles?

• Molar Mass

• Molar Ratio

• Metric System

Multiple Choice

How do you calculate molar mass?

• Use the COEFFICIENTS from the BALANCED

• Multiply the SUBSCRIPT by the ATOMIC MASS on the periodic table

• Multiply the COEFFICIENTS by the ATOMIC MASS on the periodic table

Multiple Choice

How do you calculate molar ratio?

• Use the COEFFICIENTS from the BALANCED

• Multiply the SUBSCRIPT by the ATOMIC MASS on the periodic table

• Multiply the COEFFICIENTS by the ATOMIC MASS on the periodic table

Multiple Choice

If the equation below was balanced, what would be the molar ratio of AlCl₃ to Al?

AlCl₃ + Mg → MgCl₂ + Al

• 1:1

• 1:2

• 2:2

• 1:3

Fill in the Blanks

To find MOLE RATIO, you need to use the _______________ from the _____________ equation.

Fill in the blank and type your answer and separate them with a comma.

Multiple Choice

If 2 moles of Hydrogen gas reacts with excess oxygen gas and produced 5 grams of Water, what is the actual yield?

 $2H_2\ +\ O_2\ \rightarrow\ 2H_2O$  

• 2 moles

• 2 grams

• 5 moles

• 5 grams

Multiple Choice

How many moles of Magnesium chloride are generated when 2.0 moles of Aluminum chloride react with excess Magnesium?

 $2AlCl_3+3Mg\ \rightarrow\ 3MgCl_2+2Al$  

• 1.0 mol

• 2.0 mol

• 3.0 mol

• 4.0 mol

The answer is C. 3.0 mol

Fill in the Blanks

Ms. Schnucker wanted to make some cupcakes and the box said it is expected to make 12 cupcakes. However, after looking at the batter she was only able to make 9 cupcakes. What is the percent yield?

Multiple Choice

How many grams of Magnesium chloride are generated when 2.0 moles of Aluminum chloride react with excess Magnesium?

 $$2AlCl_3+3Mg\ \rightarrow\ 3MgCl_2+2Al 

 

• 393.8 g

• 285.6 g

• 57.5 g

• 95.2 g

The answer is B. 285.6 g

Multiple Choice

What is the limiting reagent in the following balanced chemical reaction?

 $2H_2+O_2\ \rightarrow\ 2H_2O$  

• Hydrogen

• Oxygen

• Water

• There is none

The answer is A