U5 Vocabulary
What is a coefficient?
The numbers you can change while balancing equations, found in the front of reactants or products.
N₂ + 3H2 → 2NH3
How many moles of H2 are needed to completely react with 2 moles of N₂?
6 mol H2
2KClO3 → 2KCl + 3O2
How many grams of KCl are produced if 25g of KClO3 decompose?
15g KCl
What does Ms. Lamar's mom do for a job?
She's the librarian here at WHS!
What is a mole ratio?
The ratio of coefficients in a balanced equation, used to convert between mols of one compound to mols of a different compound.
2KClO3 → 2KCl + 3O₂
How many moles of O₂ are produced by the decomposition of 6 moles of KClO3?
9 mol O2
N₂ + 3H₂ → 2NH3
How many grams of H2 are necessary to react completely with 50.0g of N2 in the above reaction?
10.7g H2
How long has Ms. Lamar worked at WHS?
This is my 2nd year
How do you calculate percent yield?
Zn + 2HCl→ ZnCl₂ + H₂
How many moles of H₂ are produced from the reaction of 3 moles of Zn?
3 mol H2
N₂ + 3H₂ → 2NH3
How many grams of NH3 are produced with 50.0 grams of N2?
60.7g NH3
Where did Ms. Lamar go to college?
University of New Hampshire (2 years) and then Stonehill College (2 years)
What is a limiting reactant?
The reactant that is used up first in a chemical reaction, determining how much product can be made.
C3H8 + 5O2→ 3CO₂ + 4H₂O
How many moles of O2 are necessary to react completely with 4 moles of C3H8?
20 mol O2
2AgNO3 + BaCl2 → 2AgCl + Ba(NO3)2
How many grams of AgCl are produced from 5.0g of AgNO3?
4.2 g AgCl
What did Ms. Lamar study in college?
Environmental science
What is stoichiometry?
Converting between a mol/g of one compound to a mol/g of another compound using mole ratios in a balanced equation.
K3PO4 + Al(NO)3→ 3KNO3 + AlPO4
How many moles of KNO3 are produced when 2 moles of K3PO4 react completely?
6 mol KNO3
2AgNO3 + BaCl2 → 2AgCl + Ba(NO3)2
How much BaCl2 is necessary to react with 5.0g of AgNO3?
2.5g BaCl2
Where did Ms. Lamar graduate from high school?
Attleboro High School