Molar Mass, Mole Conversion and Percent Composition
Flashcard
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Chemistry
•
10th Grade - University
•
Hard
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1.
FLASHCARD QUESTION
Front
What is molar mass?
Back
The molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a molecule.
2.
FLASHCARD QUESTION
Front
How do you convert moles to grams?
Back
To convert moles to grams, use the formula: grams = moles × molar mass.
3.
FLASHCARD QUESTION
Front
What is a mole?
Back
A mole is a unit in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.) of a substance.
4.
FLASHCARD QUESTION
Front
How do you calculate the number of atoms in a given number of moles?
Back
Multiply the number of moles by Avogadro's number (6.02 x 10^23).
5.
FLASHCARD QUESTION
Front
What is percent composition?
Back
Percent composition is the percentage by mass of each element in a compound.
6.
FLASHCARD QUESTION
Front
How do you calculate the percent composition of an element in a compound?
Back
Percent composition = (mass of element in 1 mole of compound / molar mass of compound) × 100%.
7.
FLASHCARD QUESTION
Front
What is Avogadro's number?
Back
Avogadro's number is 6.02 x 10^23, which is the number of particles in one mole of a substance.
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