Mole Conversions
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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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 the amount of a substance. It is defined as the amount of substance that contains the same number of entities (atoms, molecules, etc.) as there are in 12 grams of carbon-12, which is approximately 6.02 x 10^23 entities.
2.
FLASHCARD QUESTION
Front
How many molecules are in 1 mole?
Back
1 mole contains approximately 6.02 x 10^23 molecules, known as Avogadro's number.
3.
FLASHCARD QUESTION
Front
What is the formula to convert grams to moles?
Back
4.
FLASHCARD QUESTION
Front
What is the molar mass of a substance?
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.
5.
FLASHCARD QUESTION
Front
How do you calculate the molar mass of a compound like Al2(CO3)3?
Back
To calculate the molar mass of Al2(CO3)3, sum the molar masses of all atoms: 2(26.98 g/mol for Al) + 3(12.01 g/mol for C + 3(16.00 g/mol for O) = 233.99 g/mol.
6.
FLASHCARD QUESTION
Front
What is the relationship between moles and molecules?
Back
The relationship is given by Avogadro's number: 1 mole of any substance contains 6.02 x 10^23 molecules.
7.
FLASHCARD QUESTION
Front
How do you convert moles to grams?
Back
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