What is the molar mass of a substance?
Molar Mass, Mole Conversion and Percent Composition

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Chemistry
•
10th Grade - University
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).
2.
FLASHCARD QUESTION
Front
How do you calculate the percentage composition of an element in a compound?
Back
Percentage composition is calculated by dividing the mass of the element in one mole of the compound by the molar mass of the compound, then multiplying by 100.
3.
FLASHCARD QUESTION
Front
What is the formula to convert grams to moles?
Back
Moles = Mass (g) / Molar Mass (g/mol).
4.
FLASHCARD QUESTION
Front
How many moles are in 12 grams of carbon (C)?
Back
0.1 moles (Molar mass of C is 12 g/mol).
5.
FLASHCARD QUESTION
Front
What is Avogadro's number?
Back
Avogadro's number is 6.022 x 10^23, which is the number of atoms, ions, or molecules in one mole of a substance.
6.
FLASHCARD QUESTION
Front
How do you find the number of atoms in a given number of moles?
Back
Multiply the number of moles by Avogadro's number.
7.
FLASHCARD QUESTION
Front
What is the molar mass of water (H2O)?
Back
The molar mass of water is approximately 18.02 g/mol.
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