mole. stoichiometry the study of quantitative relationships between the amounts of reactants used...
TRANSCRIPT
![Page 1: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/1.jpg)
Mole
![Page 2: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/2.jpg)
StoichiometryThe study of quantitative relationships between the
amounts of reactants used and products formed by a chemical reactions; it is based on the law
of conservation of mass.
![Page 3: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/3.jpg)
MoleThe SI base unit used to
measure the amount of a substance.
![Page 4: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/4.jpg)
Avogadro’s NumberThe number of representative particles in a mole, and can be
rounded to three significant digits:
6.02 X 1023 molecules/mol
![Page 5: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/5.jpg)
moles/L =M
Molarity
![Page 6: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/6.jpg)
Molecule Forms when two or
more atoms covalently bond.
![Page 7: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/7.jpg)
To find the number of molecules it takes to equal a
certain number of moles. Take the number of moles given and
multiply by Avogadro’s number.
![Page 8: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/8.jpg)
How many molecules of Sucrose is in 3.50 moles of Sucrose.
3.50 mol Sucrose X 6.02x1023 molecules/mol =2.11x1024molecules of Sucrose
![Page 9: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/9.jpg)
How many molecules of Sodium Hydroxide is in 4.80 moles of
Sodium Hydroxide?4.80 mol Sodium Hydroxide X
6.02x1023molecules/mol
=2.89x1024 molecules of Sodium Hydroxide
![Page 10: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/10.jpg)
To find the number of moles it takes to equal a certain
number of molecules. Take the number of molecules given and divide by Avogadro’s number.
![Page 11: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/11.jpg)
How many moles of Sucrose is in 3.54x1024 molecules of
Sucrose.
3.54x1024 molecules of Sucrose ÷
6.02x1023 molecules/mol
=5.88 moles of Sucrose
![Page 12: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/12.jpg)
How many moles of Sodium Hydroxide is in 5.63x1024
molecules of Sodium Hydroxide.
5.63x1024 molecules NaOH ÷6.02x1023 molecules/mol=9.35 moles of NaOH
![Page 13: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/13.jpg)
Molar MassThe mass in grams of one mole of any pure
substance.g/mol
![Page 14: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/14.jpg)
To find the number of grams of substance. Take the number of
moles given and multiply by the substance’s molar mass.
![Page 15: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/15.jpg)
Find the mass of 3.2 moles of Butane needed to complete the
reaction.
3.2 mol of Butane X
58.14 g/mol
=186.05 g of Butane
![Page 16: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/16.jpg)
Find the mass of 4.5 moles of Pentanol needed to complete
the reaction.
4.5 mol Pentanol X86.15 g/mol=387.68 g of Pentanol
![Page 17: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/17.jpg)
To find the number of moles of substance. Take the number of grams given and divide by the
substance’s molar mass.
![Page 18: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/18.jpg)
Find the moles of 23 g of water needed to complete the
reaction.
23 g water ÷18.02 g/mol=1.28 mol of water
![Page 19: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/19.jpg)
Find the moles of 112 g of Hydrochloric Acid needed to
complete the reaction.
112 g of Hydrochloric Acid ÷36.46 g/mol=3.07 mol of Hydrochloric Acid
![Page 20: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/20.jpg)
To find the number of moles of an element in a compound,
multiply the moles of the compound with the ratio of
number of elements to 1 mol of compound.
![Page 21: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/21.jpg)
How many moles of Fluorine is found in 5.50 moles of Freon
(CCl2F2).
5.50 mol CCl2F2 X
2 mol F atoms/1 mol CCl2F2 = 11.0 mol F atoms
![Page 22: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/22.jpg)
How many moles of Oxygen is found in 4.75 moles of Glucose
(C6H12O6).
4.75 mol C6H12O6 X 6 mol O atoms/1 mol C6H12O6 = 28.5 mol O atoms
![Page 23: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/23.jpg)
To find the moles of a compound, take the mass of the compound and divide by
the molar mass of the compound.
![Page 24: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/24.jpg)
How many moles are there of 47g of water?
47g of water ÷
18.02 g/mol of water
= 2.61 mol of water
![Page 25: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/25.jpg)
How many moles are there of 21g of Benzene?
21g of Benzene ÷
78.12 g/mol of Benzene
= 0.27 mol of Benzene
![Page 26: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/26.jpg)
Mole Ratio
In a balanced equation, the ration between the
numbers of moles of any two substances.
![Page 27: Mole. Stoichiometry The study of quantitative relationships between the amounts of reactants used and products formed by a chemical reactions; it is based](https://reader033.vdocuments.us/reader033/viewer/2022051820/56649ed95503460f94be7498/html5/thumbnails/27.jpg)
To find mole ratio, put moles of one substance over the moles of another substance in chemical
equation.2KClO3 → 2KCl + 3O2
2mol KClO3/2mol KCl
2 mol KClO3/3mol O2