Stoichiometry Test Review
Flashcard
•
Chemistry
•
10th - 11th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is stoichiometry?
Back
Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.
2.
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 6.02 x 10^23 particles (atoms, molecules, ions, etc.).
3.
FLASHCARD QUESTION
Front
How do you calculate moles from molecules?
Back
To calculate moles from molecules, divide the number of molecules by Avogadro's number (6.02 x 10^23).
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).
5.
FLASHCARD QUESTION
Front
How many moles of Fe can be produced from 6 moles of H2 in the reaction Fe2O3 + 3H2 → 2Fe + 3H2O?
Back
4 moles of Fe can be produced from 6 moles of H2.
6.
FLASHCARD QUESTION
Front
What is the relationship between moles and grams?
Back
To convert moles to grams, multiply the number of moles by the molar mass of the substance.
7.
FLASHCARD QUESTION
Front
How many grams are in 0.89 moles of CaCl2?
Back
98.9 grams of CaCl2 are in 0.89 moles.
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