Chapter 8.pptx

# Chapter 8.pptx - Chapter 8 Quantities in Chemical Reactions...

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Chapter 8 Quantities in Chemical Reactions It begins with one and ends with infinity.

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Stoichiometry Stoichiometry is the calculation of quantities of substances involved in a chemical reaction.
Stoichiometry Stoichiometry is the calculation of quantities of substances involved in a chemical reaction. Yes, we are about to get math intensive. Don’t panic!

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Molar Ratios The numerical coefficients in a balanced chemical equation give the simplest whole number ratio of moles of each chemical involved in the reaction.
Molar Ratios The numerical coefficients in a balanced chemical equation give the simplest whole number ratio of moles of each chemical involved in the reaction. +

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Molar Ratios The numerical coefficients in a balanced chemical equation give the simplest whole number ratio of moles of each chemical involved in the reaction. + The ratio is 2 moles to 5 moles of to 2 moles of . Or 2:5:2.
Molar Ratios The numerical coefficients in a balanced chemical equation give the simplest whole number ratio of moles of each chemical involved in the reaction. + The ratio is 2 moles to 5 moles of to 2 moles of . Or 2:5:2. With these coefficients, you can write a molar ratio for any two substances represented by the equation.

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Molar Ratios The numerical coefficients in a balanced chemical equation give the simplest whole number ratio of moles of each chemical involved in the reaction. + The ratio is 2 moles to 5 moles of to 2 moles of . Or 2:5:2. With these coefficients, you can write a molar ratio for any two substances represented by the equation. or or or or etc
Molar Ratio The molar ratios from a balanced chemical reaction can be used as conversion factors for that specific equation. You can use the molar ratios from a chemical reaction to convert moles of one substance to moles of another substance, as long as both substances are in the chemical reaction.

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Example If you have 3.62 moles of , how many moles of will be produced by the following reaction? 2 + +
Example If you have 3.62 moles of , how many moles of will be produced by the following reaction? 2 + + The molar ratio of to is .

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Example If you have 3.62 moles of , how many moles of will be produced by the following reaction? 2 + + The molar ratio of to is . 3.62 moles X =
Example If you have 3.62 moles of , how many moles of will be produced by the following reaction? 2 + + The molar ratio of to is . 3.62 moles X = 1.81 moles Remember that your molar ratio is always moles of what you have under moles of what you want.

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Mass to Mass Conversions A mass calculation is where you are given the mass of one substance in the reaction and asked to find the mass of another.
Mass to Mass Conversions A mass calculation is where you are given the mass of one substance in the reaction and asked to find the mass of another.

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