Stoich Facts
Formula Units
Balancing Equations
Mole Problems
Misc Questions
100
the calculation of relative quantities of reactants and products in chemical reactions.
What is stoichiometry
100
Types of formula units
What is GFM, GAM, GMM
100
the balanced equation for the reaction of acetic acid with aluminum hydroxide to form water and aluminum acetate:
What is 3 C2H3O2H + Al(OH)3  Al(C2H3O2)3 + 3 H2O
100
The number of moles of this compound 21.5 g CaCO3
What is 0.215mol
100
Given the reaction: 4 NH3 (g) + 5 O2 (g) ---> 4 NO (g) + 6 H2O (l) When 1.20 mole of ammonia reacts, the total number of moles of products formed is: a. 1.20 b. 1.50 c. 1.80 d. 3.00 e. 12.0
What is D.
200
states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed
What is the law of conservation of mass
200
DAILY DOUBLE If Olivia and Brita were to get a stoichiometry problem wrong on the Regents or SAT II, what should they do?
What is cry. A lot.
200
The balanced equation of Ca(OH)2 + HCl à CaCl2 + H2O
What is Ca(OH)2 + 2HCl à CaCl2 + 2H2O
200
Given the balanced equation: 2 N2H4(l) + N2O4(l)  3 N2(g) + 4 H2O(g) How many moles of water are produced when 57 moles of nitrogen are made?
What is 76 mol H2O
200
Given the following equation: Na2O + H2O ---> 2 NaOH How many grams of NaOH is produced from 1.20 x 102 grams of Na2O? How many grams of Na2O are required to produce 1.60 x 102 grams of NaOH?
What is 155 g
300
The reactant in a chemical reaction that limits the amount of product that can be formed.
limiting reagent
300
2Al +3Cl2→2AlCl3 When 80 grams of aluminum is reacted with excess chlorine gas, how many formula units of AlCl3 are produced?
What is ×1 mole Al = 2.96 moles Al There is a 1:1 ratio between Al and AlCl3 , therefore there are 2.96 moles AlCl3 . = 1.78×1025
300
The balanced equation of AgNO3 + CaCl2 à Ca(NO3)2 +AgCl
What is 2AgNO3 + CaCl2 à Ca(NO3)2 + 2AgCl
300
Silver and nitric acid react according to the following balanced equation 3 Ag(s) + 4 HNO3(aq)  3 AgNO3(aq) + 2 H2O(l) + NO(g) From the amount of nitric acid given, how many moles of silver nitrate will be produced?
What is 30 mol AgNO3
300
If one wants to spell the name of this topic, which way is correct? A. stiochiometry B. stochiometry C. stoichiometry D. cry
What is C.
400
Jeremias Richter
What is the German inventor of stoichiometry
400
If you are given a problem with 3.05 kilograms, 0.1 moles and 7009 grams as your given, how many sigfigs will be in the answer?
What is 1 sigfig.
400
The balanced equation of Fe2O3 + C à Fe + CO3
What is 2Fe2O3 + 3C à 4Fe + 3CO3
400
Given 2 KClO3 ---> 2 KCl + 3 O2 How many moles of O2 can be produced by letting 12.00 moles of KClO3 react?
What is The KClO3 / O2 molar ratio is 2/3. 2 mol KClO3 / 3 mol. O2 = 12.00 mol KClO3 / x = 18.00 mol. x = 18.00 mol of O2
400
What is Mrs. Stephen's drink of choice? A. coffee B. iced tea C. lemonade D. hot tea
What is iced tea (B.)
500
a unit of measurement used in chemistry to express amounts of a chemical substance, defined as the amount of any substance that contains as many elementary entities (e.g., atoms, molecules, ions, electrons) as there are atoms in 12 grams of pure carbon-12 (12C), the isotope of carbon with relative atomic mass 12.
What is the mole
500
What do GFM, GAM, and GMM stand for?
What is Gram Formula Mass, Gram Atomic Mass, and Gram Molecular Mass.
500
The balanced equation of NaHCO3 + H2SO4 à Na2SO4 + H2O + CO2
What is 2NaHCO3 + H2SO4 à Na2SO4 + 2H2O + 2CO2
500
Silver and nitric acid react according to the following balanced equation: 3 Ag(s) + 4 HNO3(aq)  3 AgNO3(aq) + 2 H2O(l) + NO(g) A. How many moles of silver are needed to react with 40 moles of nitric acid?
What is 30 mol Ag
500
Who is the coolest chem teacher ever?
Who is Mrs. Stephen
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