
Mole conversions/counting atoms flashcardizz
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mole in chemistry?
Back
The mole is the base unit measuring the amount of a substance, defined as 6.02 x 10^23 particles (atoms, molecules, etc.).
2.
FLASHCARD QUESTION
Front
How is molar mass defined?
Back
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).
3.
FLASHCARD QUESTION
Front
What does a subscript in a chemical formula indicate?
Back
A subscript indicates the number of atoms of the element in a molecule. If there is no subscript, it means there is only 1 atom.
4.
FLASHCARD QUESTION
Front
What is Avogadro's number?
Back
Avogadro's number is 6.02 x 10^23, which is the number of atoms or molecules in one mole of a substance.
5.
FLASHCARD QUESTION
Front
How many atoms are in one mole of any element?
Back
One mole of any element contains 6.02 x 10^23 atoms.
6.
FLASHCARD QUESTION
Front
What is the relationship between moles and grams?
Back
To convert moles to grams, multiply the number of moles by the molar mass of the substance.
7.
FLASHCARD QUESTION
Front
If you have 2 moles of a substance, how many particles do you have?
Back
You have 2 x 6.02 x 10^23 particles, which equals 1.204 x 10^24 particles.
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