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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
  • 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

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

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

problem 1
Problem 1

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

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

let s try this using chemicals
Let’s try this using chemicals

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

problem 21
Problem 2

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

moles
Moles

One problem with the mole:

We have no way of directly measuring moles

We can convert:

one step further
One Step Further

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

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

problem 4
Problem 4

How much of each ingredient will be left over?

recall the chemicals
Recall the chemicals?

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:

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

problem 41
Problem 4

How much of the other reactant is left over?

problem 5
Problem 5

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

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