What are mole ratios used for in chemical reactions?
Mole Ratios Bell Ringer

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Chemistry
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Mole ratios are used for conversions between moles of reactants and products in a chemical reaction, derived from the coefficients of the balanced chemical equation.
2.
FLASHCARD QUESTION
Front
In the reaction 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O, what is the mole ratio of ethane (C2H6) to oxygen (O2)?
Back
The mole ratio of ethane to oxygen is 2:7.
3.
FLASHCARD QUESTION
Front
In the reaction 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O, what is the mole ratio of carbon dioxide (CO2) to water (H2O)?
Back
The mole ratio of carbon dioxide to water is 4:6, which simplifies to 2:3.
4.
FLASHCARD QUESTION
Front
What is the mole ratio between nitrogen (N2) and ammonium (NH3) in the reaction N2 + 3H2 → 2NH3?
Back
The mole ratio between nitrogen and ammonium is 1:2.
5.
FLASHCARD QUESTION
Front
In the reaction 3 CaCl2 + 2 Na3PO4 → Ca3(PO4)2 + 6 NaCl, what is the mole ratio of sodium chloride (NaCl) to calcium phosphate (Ca3(PO4)2)?
Back
The mole ratio of sodium chloride to calcium phosphate is 6:1.
6.
FLASHCARD QUESTION
Front
How do you determine the mole ratio from a balanced chemical equation?
Back
The mole ratio is determined by looking at the coefficients of the balanced chemical equation.
7.
FLASHCARD QUESTION
Front
What is the significance of balancing a chemical equation in relation to mole ratios?
Back
Balancing a chemical equation ensures that the law of conservation of mass is followed, allowing for accurate mole ratios between reactants and products.
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