StoichiometryStoichiometry

Example ProblemExample Problem

How many moles of silver can be How many moles of silver can be produced by the reaction of 0.500mol produced by the reaction of 0.500mol of copper with silver nitrate if of copper with silver nitrate if copper(II) nitrate is also produced?copper(II) nitrate is also produced?

Example ProblemExample Problem

How many moles of oxygen are How many moles of oxygen are necessary to react with 0.450mol of necessary to react with 0.450mol of iron to form iron(III) oxide?iron to form iron(III) oxide?

Example ProblemExample Problem

How many moles of carbon dioxide How many moles of carbon dioxide gas can be produced by the gas can be produced by the decomposition of 0.100mol of iron(III) decomposition of 0.100mol of iron(III) carbonate?carbonate?

Practice ProblemPractice Problem

How many moles of sodium How many moles of sodium phosphate are needed to completely phosphate are needed to completely react with 0.400mol copper(II) react with 0.400mol copper(II) chloride?chloride?

Practice ProblemPractice Problem

How many moles of zinc are needed How many moles of zinc are needed to completely react with 0.300mol to completely react with 0.300mol hydrochloric acid?hydrochloric acid?

Practice ProblemPractice Problem

How many moles of potassium How many moles of potassium chlorate are needed to generate chlorate are needed to generate 0.150mol oxygen gas?0.150mol oxygen gas?

Mass-Mass Mass-Mass RelationshipsRelationships

Example ProblemExample Problem

What mass of aluminum oxide can be What mass of aluminum oxide can be produced by the reaction of 8.95g of produced by the reaction of 8.95g of aluminum with excess oxygen?aluminum with excess oxygen?

Example ProblemExample Problem

What mass of water can be produced What mass of water can be produced by the decomposition of 2.50g of by the decomposition of 2.50g of iron(III) hydroxide?iron(III) hydroxide?

Example ProblemExample Problem

What mass of propane (CWhat mass of propane (C33HH88) can be ) can be

burned in 6.60g oxygen?burned in 6.60g oxygen?

Practice ProblemPractice Problem

What mass of copper(II) oxide will What mass of copper(II) oxide will remain after heating 5.50g copper(II) remain after heating 5.50g copper(II) carbonate to decomposition?carbonate to decomposition?

Practice ProblemPractice Problem

What mass of oxygen is required to What mass of oxygen is required to completely oxidize 4.50g of aluminum completely oxidize 4.50g of aluminum metal?metal?

Practice ProblemPractice Problem

What mass of hydrogen can be What mass of hydrogen can be produced by the reaction of 10.0g of produced by the reaction of 10.0g of sodium with water?sodium with water?

Solution Volume Solution Volume RelationshipsRelationships

Example ProblemExample Problem

What volume of 6.0M hydrochloric acid is What volume of 6.0M hydrochloric acid is required to completely react with 500.0mL required to completely react with 500.0mL of 0.0112M barium hydroxide?of 0.0112M barium hydroxide?

Example ProblemExample Problem

A 12.12mL portion of hydrochloric acid is A 12.12mL portion of hydrochloric acid is used to titrate 0.512g of sodium hydrogen used to titrate 0.512g of sodium hydrogen carbonate. What is the molarity of the carbonate. What is the molarity of the hydrochloric acid solution?hydrochloric acid solution?

Example ProblemExample Problem

What volume of 0.105M NaOH is required What volume of 0.105M NaOH is required to completely react with 1.00g of citric to completely react with 1.00g of citric acis, Hacis, H33CC66HH55OO77??

Example ProblemExample Problem

10.0mL of 0.150M oxalic acid solution, 10.0mL of 0.150M oxalic acid solution, HH22CC22OO44 was titrated with 23.49mL of was titrated with 23.49mL of

NaOH. What was the concentration of NaOH. What was the concentration of NaOH used in the titration??NaOH used in the titration??

Gas Volume RelationshipsGas Volume Relationships

Gas VolumesGas Volumes

Gas volumes vary tremendously Gas volumes vary tremendously based on:based on:PressurePressureTemperatureTemperatureAmount of gasAmount of gas

GassesGasses

To keep things simple:To keep things simple:Standard Pressure = 1 atmosphere Standard Pressure = 1 atmosphere

(1 atm)(1 atm)Standard Temperature = 0°CStandard Temperature = 0°CSTP = Standard Temperature and STP = Standard Temperature and

PressurePressure

ExampleExample

What volume of oxygen gas is What volume of oxygen gas is required to completely burn 1.0L of required to completely burn 1.0L of propane gas (Cpropane gas (C33HH88) at STP?) at STP?

ExampleExample

What volume of oxygen gas can be What volume of oxygen gas can be produced at STP by the produced at STP by the decomposition of 3.00g of potassium decomposition of 3.00g of potassium chlorate?chlorate?

PracticePractice

What mass of sodium hydroxide is What mass of sodium hydroxide is needed to completely react with 2.00L needed to completely react with 2.00L of carbon dioxide if sodium hydrogen of carbon dioxide if sodium hydrogen carbonate is formed?carbonate is formed?

PracticePractice

What volume of hydrogen gas is What volume of hydrogen gas is produced when 22.5mL of 1.50M produced when 22.5mL of 1.50M hydrochloric acid reacts with excess hydrochloric acid reacts with excess calcium?calcium?

Limiting Reagent PracticeLimiting Reagent Practice

PracticePractice

2.00g of magnesium ribbon is added 2.00g of magnesium ribbon is added to a 4.0L container of oxygen at STP. to a 4.0L container of oxygen at STP. How many grams of magnesium How many grams of magnesium oxide can be produced?oxide can be produced?

PracticePractice

A 1.25g piece of aluminum was A 1.25g piece of aluminum was added to 50.0mL of 0.100 copper(II) added to 50.0mL of 0.100 copper(II) nitrate solution. How many grams of nitrate solution. How many grams of copper can be produced?copper can be produced?