Limiting Reagents

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  • Pages: 197
What would be produced if two pieces of bread and a slice of salami reacted together? +

?

+

?

2B

+ +

S

? ?

+

2B

+ +

S

B2S

2B

+ +

1S

1B2S

2B

+

1S

1B2S

+ Bread (B) and Salami (S) react in a 2 to 1 (2:1) ratio to produce sandwich (B2S)

What would be produced if four pieces of bread and two slices of salami reacted together? +

?

+

?

4B

+ +

2S

? ?

+

4B

+ +

2S

2B2S

6B

+ +

2S

?

6B

+ +

2S

?

+ + (leftover)

6B

+ +

2S

2B2S

6B

+

2S

2B2S

+

The amount of salami limits the amount of sandwiches that can be produced

WHY?

19B

+

+

2S

?

19B

+

+

2S

2B2S

19B

+

2S

2B2S

+ + (leftover)

4B

+

+

9S

4B

+

+

9S

?

4B

+

9S

?

+ (Remember: the bread and salami react in a 2:1 ratio)

+

4B

+

9S

2B2S

+ + (leftover)

4B

+

9S

2B2S

+ Here, the amount of bread limits + the amount of sandwiches that can be produced (leftover)

4B

+

9S

2B2S

+ The 2:1 reaction ratio of bread:salami is maintained with excess bread or excess salami

what reaction could this be?

2H2 + 1 O2

2H2O

? what happens if there is an excess amount of hydrogen?

?

?

5H2 + 1 O2

2H2O+ 3H2

?

excess H2 + 1 O2

2H2O

?

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