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The Mole

CAVA Chem 302 303 S1U6L2 Mole Number Relationships

QuestionAnswer
A mole is a unit for measuring [...] of particles such as atoms or compounds. A mole is a unit for measuring numbers of particles such as atoms or compounds.
A mole is just like a 'dozen', or a 'pair', or a 'hundred'.... just a much [...] number. A mole is just like a 'dozen', or a 'pair', or a 'hundred'.... just a much bigger number.
Think of [...] as just a name for a certain number: 6.022 * 10^23 Think of mole as just a name for a certain number: 6.022 * 10^23
Chemists defined a mole as the amount of a substance that contains as many particles as there are atoms in exactly [...] g of carbon-12. Chemists defined a mole as the amount of a substance that contains as many particles as there are atoms in exactly 12 g of carbon-12.
True or False: No one is absolutely sure where the term mole came from. [...]! True or False: No one is absolutely sure where the term mole came from. TRUE!
There are [...] things in a mole. There are 6.022 * 10^23 things in a mole.
A mole is just a name for 6.022 * 10^23 of anything; just as a [...] is a name for 12 of anything. A mole is just a name for 6.022 * 10^23 of anything; just as a dozen is a name for 12 of anything.
If you have a 12 eggs, you can say you have a dozen eggs; If you have 6.022 * 10^23 eggs, you can say you have a [...] of eggs. If you have a 12 eggs, you can say you have a dozen eggs; If you have 6.022 * 10^23 eggs, you can say you have a mole of eggs.
6.022 * 10^23 is called [...]'s Number; it's named after a famous chemist. 6.022 * 10^23 is called Avogadro's Number; it's named after a famous chemist.
Moles are useful because a mole of any element weighs the same as the element's atomic mass in [...]. Moles are useful because a mole of any element weighs the same as the element's atomic mass in grams.
The periodic table tells you how much 1 [...] of any element weighs in grams. The periodic table tells you how much 1 mole of any element weighs in grams.
Think of the periodic table of the elements as the periodic table of [...]. Think of the periodic table of the elements as the periodic table of how much a mole of anything weighs in grams.
A mole of H2O would contain within itself, [...] mole of O and [...] moles of H. A mole of H2O would contain within itself, one mole of O and two moles of H.
A mole of H2O would weigh the same as [...] mole of O plus [...] moles of H. A mole of H2O would weigh the same as one mole of O plus two moles of H.
Sulfur (S) has an average atomic mass of 32.06 amu. Therefore, 1 mole of sulfur weighs 32.06 [...]. Sulfur (S) has an average atomic mass of 32.06 amu. Therefore, 1 mole of sulfur weighs 32.06 grams.
Aluminum (Al) has an average atomic mass of 26.98 amu. Therefore, 1 mole of aluminum weighs [...] grams. Aluminum (Al) has an average atomic mass of 26.98 amu. Therefore, 1 mole of aluminum weighs 26.98 grams.
Gold (Au) has an average atomic mass of 196.97 amu. Therefore, [...] mole of gold weighs 196.97 grams. Gold (Au) has an average atomic mass of 196.97 amu. Therefore, 1 mole of gold weighs 196.97 grams.
Technically, a mole is defined as the number of atoms of carbon-12 that weigh [...] grams. That number is 6.022 * 10^23. Technically, a mole is defined as the number of atoms of carbon-12 that weigh 12 grams. That number is 6.022 * 10^23.
For some reason, chemists love the carbon isotope carbon-[...]. For some reason, chemists love the carbon isotope carbon-12.
Created by: mr.shapard