Embed Size (px)
Citation preview
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
