What is stoichiometry?
Stoichiometry mole & mass

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Chemistry
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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
Define a mole in chemistry.
Back
A mole is a unit of measurement in chemistry that represents 6.022 x 10²³ particles (atoms, molecules, ions, etc.) of a substance.
3.
FLASHCARD QUESTION
Front
What is the mole ratio?
Back
The mole ratio is the ratio of the coefficients of any two substances in a balanced chemical equation, used to convert between moles of reactants and products.
4.
FLASHCARD QUESTION
Front
How do you calculate moles from mass?
Back
To calculate moles from mass, use the formula: Moles = Mass (g) / Molar Mass (g/mol).
5.
FLASHCARD QUESTION
Front
What is the molar mass of water (H₂O)?
Back
The molar mass of water (H₂O) is approximately 18 g/mol.
6.
FLASHCARD QUESTION
Front
Using the equation 2H₂ + O₂ → 2H₂O, how many moles of H₂ are needed for 1 mole of O₂?
Back
2 moles of H₂ are needed for 1 mole of O₂.
7.
FLASHCARD QUESTION
Front
What is the mole to mole ratio of H₂O to H₃PO₄ in the equation P₄O₁₀ + 6 H₂O → 4 H₃PO₄?
Back
The mole ratio of H₂O to H₃PO₄ is 6:4.
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