Conversions (Mass-Mole-Particles) & Percent Comp.

Flashcard
•
Chemistry
•
10th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the relationship between moles, mass, and particles?
Back
1 mole = 6.02 x 10^23 particles (Avogadro's number); Mass (g) = Moles x Molar Mass (g/mol).
2.
FLASHCARD QUESTION
Front
How do you calculate the molar mass of a compound?
Back
Add the atomic masses of all atoms in the compound's formula.
3.
FLASHCARD QUESTION
Front
What is the empirical formula?
Back
The simplest whole-number ratio of elements in a compound.
4.
FLASHCARD QUESTION
Front
How do you convert grams to moles?
Back
Moles = Mass (g) / Molar Mass (g/mol).
5.
FLASHCARD QUESTION
Front
How do you convert moles to particles?
Back
Particles = Moles x 6.02 x 10^23.
6.
FLASHCARD QUESTION
Front
What is the formula to calculate percent composition?
Back
Percent Composition = (Mass of Element / Total Mass of Compound) x 100.
7.
FLASHCARD QUESTION
Front
What is the molar mass of water (H2O)?
Back
18.02 g/mol.
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