Moles and Mole Conversions (REG)

Flashcard
•
Chemistry
•
10th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a mole in chemistry?
Back
A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, ions, etc.).
2.
FLASHCARD QUESTION
Front
How do you calculate the number of moles from grams?
Back
Number of moles = mass (grams) / molar mass (g/mol).
3.
FLASHCARD QUESTION
Front
What is the molar mass of a compound?
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 the molecular formula.
4.
FLASHCARD QUESTION
Front
How many molecules are in one mole of a substance?
Back
One mole of any substance contains 6.022 x 10^23 molecules.
5.
FLASHCARD QUESTION
Front
What is the formula to convert moles to molecules?
Back
Number of molecules = number of moles x 6.022 x 10^23.
6.
FLASHCARD QUESTION
Front
How do you find the mass of a substance from moles?
Back
Mass (grams) = number of moles x molar mass (g/mol).
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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