Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole...
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Transcript of Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole...
![Page 1: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/1.jpg)
Chapter 7Chemical Quantities
![Page 2: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/2.jpg)
The MoleThe Mole
SI base unit to measure the amount of a substance
1 mole of anything = 6.022 x 1023
representative particles
![Page 3: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/3.jpg)
![Page 4: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/4.jpg)
![Page 5: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/5.jpg)
2. How many molecules are in 2.12 mole of propane(C3H8)?
3. How many moles are there in 3.01 x 1023 forumla units of NaOH?
![Page 6: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/6.jpg)
![Page 7: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/7.jpg)
Ex. molecular formula of H2O
H = 2(1.01) = 2.02 O = 1(16.0) =16.0 18.02 gGram formula mass – mass of one
mole of an ionic compound formula mass of CaCl2
![Page 8: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/8.jpg)
![Page 9: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/9.jpg)
9.45 mole N2O3 76.0 g N2O3
1 mole N2O3
= 718 g N2O3
![Page 10: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/10.jpg)
Find the number of moles in 92.2 g of iron(III) oxide.
![Page 11: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/11.jpg)
![Page 12: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/12.jpg)
22.4 L = 1 mole
22.4 L = 6.022 x 1023 representative particles
Density of a gas is in units of g/L g 22.4 L
![Page 13: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/13.jpg)
![Page 14: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/14.jpg)
Percent Composition
![Page 15: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/15.jpg)
![Page 16: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/16.jpg)
Shows the simplest whole-number ratio of the atoms in a compound
Can be the true formula sometimes
![Page 17: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/17.jpg)
![Page 18: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/18.jpg)
1.Analysis shows a compound to contain 26.56% K, 35.41% Cr, 38.03% O. Find the empirical formula.
![Page 19: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/19.jpg)
Indicates the ratio of the atoms
Shows the actual number of atoms Can be reduced sometimes
![Page 20: Chapter 7 Chemical Quantities. The Mole SI base unit to measure the amount of a substance 1 mole of anything = 6.022 x 10 23 representative particles.](https://reader035.fdocuments.us/reader035/viewer/2022081506/5697bff71a28abf838cbeb49/html5/thumbnails/20.jpg)