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Information Review. Have out a scratch piece of paper and a pencil. Write all three chemical equations for each. A solution of potassium iodide reacts with a solution of copper(I) nitrate 2. Solutions of silver nitrate and sodium chloride react. Write all three chemical equations for each.

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Information review

Information Review

Have out a scratch piece of paper and a pencil


Write all three chemical equations for each
Write all three chemical equations for each

  • A solution of potassium iodide reacts with a solution of copper(I) nitrate

    2. Solutions of silver nitrate and sodium chloride react


Write all three chemical equations for each1
Write all three chemical equations for each

  • A solution of potassium iodide reacts with a solution of copper(I) nitrate

  • Solutions of silver nitrate and sodium chloride react


Concept review
Concept Review

What do the coefficients in a chemical reaction tell you?

Is 1 g of substance A equal to 1 g of substance B?

How would you convert from grams to moles?




It s this simple
It’s this simple reactants in a chemical equation.

  • Write a balanced chemical equation.

  • Compare reactants to products, products to products, or reactants to reactants using conversions.

    Remember your molar road map:

    Grams ----------------- Moles


Practical application
Practical Application reactants in a chemical equation.

You have just purchased the Plateau McDonald’s franchise and are going to make Big Macs. You check the storeroom and see that you have a large surplus of special sauce, lettuce, pickles, and onions. However you have a limited amount of hamburger patties, cheese slices, and buns.


Your stockroom
Your Stockroom reactants in a chemical equation.

You inventory your supplies and total 500 hamburger patties, 600 slices of cheese, and 650 hamburger buns.


Problem 1
Problem 1 reactants in a chemical equation.

If each Big Mac has 2 hamburger (Ha) patties, three buns (Bu). And 2 slices of cheese (Ch), write a balanced equation for the formation of a Big Mac from these ingredients using the symbols (Ha, Bu, Ch).

2Ha + 3Bu + 2Ch  1 Ha2 Bu3 Ch2


Problem 2
Problem 2 reactants in a chemical equation.

How many Big Macs can you make with the above ingredients?


Let s try this using chemicals
Let’s try this using chemicals reactants in a chemical equation.

Problem 1: Write the balanced chemical reaction of a solution of potassium iodide and a solution of lead (II)nitrate.


Problem 21
Problem 2 reactants in a chemical equation.

How many moles of PbI2 will be produced from 3.2 moles of KI and 4.5 moles of Pb(NO3)2?


Questions
Questions? reactants in a chemical equation.


Moles
Moles reactants in a chemical equation.

One problem with the mole:

We have no way of directly measuring moles

We can convert:


One step further
One Step Further reactants in a chemical equation.

If 5.06 g of KI and an excess of Pb(NO3)2 were reacted, how many moles of PbI2 would be produced?


Back to the big macs
Back to the Big Macs reactants in a chemical equation.

Problem 3: Which is your limiting factor? In other words, which ingredient will run out first?


Problem 4
Problem 4 reactants in a chemical equation.

How much of each ingredient will be left over?


Recall the chemicals
Recall the chemicals? reactants in a chemical equation.

Problem 1: Write the balanced chemical reaction of a solution of potassium iodide and lead nitrate.

Problem 2: How many moles of PbI2 will be produced from 3.2 moles of KI and 4.5 moles of Pb(NO3)2?


Using our chemicals
Using our chemicals: reactants in a chemical equation.

Problem 3: Which reactant limits how much of the products are produced?


Problem 41
Problem 4 reactants in a chemical equation.

How much of the other reactant is left over?


Problem 5
Problem 5 reactants in a chemical equation.

If 5.06 g of KI is completely reacted, how many grams of Pb(NO3)2 were reacted?