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Please help me I am so lost!!

Here's the lesson. My writing is in Blue.

Where should I start? I am that confused; I feel like

Thanks for your help!!

Here's the lesson. My writing is in Blue.

Suppose for your movie you need to make 10 batches of this fake blood. In your freezer you have 9 cans of white grape juice, you have 15 tablespoons of red food color and you have 8 teaspoons of yellow food color. Obviously, you need to go to the store, but how many batches can you make?

*Thinking time*

*

*

*

*

*

Time's up! Got an answer?

Here is the thought process.

9 cans of white grape juice will make 9 batches.

15 tbs. of red food color can make 7.5 batches (2 tbs. each)

8 tsp. of yellow food color can make 8 batches.

So.....The answer must be 7.5 batches if you want to make half a batch.

You just did a "limiting reactant problem!" Aren't you excited?

Woohoo yes I am! Problem is that the questions asked below are not as easy as this..

The limiting reactant in the problem above was the red food coloring. When you ran out of that item, you had to stop making blood. It "limited" the amount of product produced.

Problems in chemistry are exactly the same as the blood problem, except you will be dealing with amounts in moles and grams instead of tablespoons and cans.

The problems are almost the same as the stoichiometry problems you did in the last section. The only difference is that each problem will have to be done more than once.

This is as far as it makes sense to me. I'm thinking I need to figure out the ratio of (S) to (O2) but I'm not sure how to do that.

A typical problem might read:

* You have 20.0 g of elemental sulfur, S, and 160.0 grams of O2. What mass of SO2 can be formed?

Notice the similarity to the blood problem and the problem above! You are given amounts of each reactant in this type of problem instead of being told that you have an unlimited amount of one.

The thought process is the same. However in the above case, you need to apply a few chemistry concepts to arrive at the answer.

Study time!

1. Please visit to the following site: Stoichiometry: Limiting Reactant

http://www.chem.tamu.edu/class/majors/tutorialnotefiles/limiting.htm [Broken]

Review the information on Limiting Reactants. Use the information to answer the two problems below that are in red.

1. How many grams SO2 can be formed from 20.0 g of S and 160g O2?

2. How many gramsSO2 can be formed from 20 g S and 15.0 g of O2?

2. Show the balanced equation and your work.

Where should I start? I am that confused; I feel like

Thanks for your help!!

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