Stoichiometry Practice

Flashcard
•
Chemistry
•
10th Grade
•
Hard
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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 balanced equations.
2.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, ensuring the law of conservation of mass is followed.
3.
FLASHCARD QUESTION
Front
What is the mole concept?
Back
The mole is a unit in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.) of a substance.
4.
FLASHCARD QUESTION
Front
How do you convert grams to moles?
Back
To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).
5.
FLASHCARD QUESTION
Front
What is the molar mass of magnesium (Mg)?
Back
The molar mass of magnesium (Mg) is approximately 24.31 g/mol.
6.
FLASHCARD QUESTION
Front
What is the molar volume of a gas at STP?
Back
The molar volume of a gas at standard temperature and pressure (STP) is 22.4 liters.
7.
FLASHCARD QUESTION
Front
How do you find the number of moles from volume at STP?
Back
To find the number of moles from volume at STP, divide the volume of the gas (in liters) by 22.4 L/mol.
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