Figure Out This Problem

Pd. 5

GO!

What’s it Asking?

What mass of Sb is produced when 28.1 g of

64OSb And 17.3 g of C react to form Sb and CO?

Find the Equation

Balance the Equation

CO Sb C 64 OSb

Back to What’s it Asking? Balanced equation

What do you need to balance it?

A. 2C 2Sb 2CO

B. 6C 4Sb 6CO

C.4C 4Sb 6CO

balanced equation:

CO Sb C 64 OSb 6 64

NEXT

Incorrect

• Hint:

Remember, you have

64OSb

Back to Question

NEXT

mol 1 OSb mol __ OSb g ___

Sb g ___ Sb mol __ mole 1 OSb g 1.28

64 64

64

How many Grams are in Sb4O6?

A. 217.76

B. 503.04

C. 583.04

D. 137.76

Incorrect

• Hint:

• Did you multiply the mass of Sb by 4?

• Did you multiply the mass of O by 6?

• Did you add the multiply mass of SB and O?

Go back

Now what?

• Now that you have gotten the mass to be 583.04, How many moles are in Sb and Sb4O6?

mol 1 OSb mol __ OSb g ___

Sb g ___ Sb mol __ mole 1 OSb g 1.28

64 64

64

583.04

Hint: Go back to balanced equation

Balanced Equation Take a Guess

How many moles?

• A. 4 mol Sb & 6 mol Sb4O6

• B. 4 mol Sb & 1 mol Sb4O6

• C. 1 mol Sb & 4 mol Sb4O6

Incorrect

• You can tell the number of moles in something by the number in front of the element.

Go back

Time to move on.

mol 1 OSb mol __ OSb g ___

Sb g ___ Sb mol __ mole 1 OSb g 1.28

64 64

64

583.04

4

1

What’s the mass of Sb?

A. 118.71

B. 207.20

C. 121.76

Incorrect

• Sorry try again.

• Look at your periodic table.

Now put it all together.

mol 1 OSb mol __ OSb g ___

Sb g ___ Sb mol __ mole 1 OSb g 1.28

64 64

64

583.04

4

1

121.76

Multiply 28.1 x 4 x 121.76

Then, divide it by 583.04

What do you get?

ANSWER

Answer:

mol 1 OSb mol __ OSb g ___

Sb g ___ Sb mol __ mole 1 OSb g 1.28

64 64

64

583.04

4

1

121.76

583.04

13685.824 =

23.47

Now do it with C

mol 1 C mol __ C g ___

Sb g ___ Sb mol __ mole 1 C g 7.31

How many Grams are in C?

A. 12.01

B. 12.00

C. 14.01

Incorrect

• Hint:

• Try again.

• Look at your periodic table

Go back

Now what?

• Now that you have gotten the mass to be 12.01, How many moles are in Sb and C?

Hint: Go back to balanced equation

Balanced Equation Take a Guess

mol 1 C mol __ C g ___

Sb g ___ Sb mol __ mole 1 C g 7.31

12.01

How many moles?

• A. 4 mol Sb & 6 mol C

• B. 4 mol Sb & 1 mol C

• C. 1 mol Sb & 4 mol C

Balanced equation

Incorrect

• You can tell the number of moles in something by the number in front of the element.

Go back

Time to move on.

What’s the mass of Sb?

A. 118.71

B. 207.20

C. 121.76

mol 1 C mol __ C g ___

Sb g ___ Sb mol __ mole 1 C g 7.31

12.01

4

6

Incorrect

• You just did it!

• Take a look back at the last problem.

Back to question

Now put it all together.

Multiply 17.3 x 4 x 121.76

Then, multiply 12.01 x 6

Then divide your two answers

What do you get?

mol 1 C mol __ C g ___

Sb g ___ Sb mol __ mole 1 C g 7.31

12.01

4

6

121.76

ANSWER

Answer:

72.06

8425.792 =

116.9

mol 1 C mol __ C g ___

Sb g ___ Sb mol __ mole 1 C g 7.31

12.01

4

6

121.76

Limiting reactant?

LIMITING REACTANT

Sb4O6