Title: Template by
1JEOPARDY!
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2JEOPARDY!
Avogadros Number
Mole Conversions
Empirical Formulas
Stoichiometry 1
Stoichiometry 2
Misc.
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3Daily Double Graphic and Sound Effect!
Daily Double!!!
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4What is Avogadros Number?
56.022 x 1023
6What does Avogadros Number represent?
7It represents the number of molecules per mole of
substance.
8How many molecules are in 3.6 moles of Silver
(Ag)?
92.2 x 1023 molecules Ag
10How many moles are in 1.240 x 1040 molecules
of Barium (Ba)?
112.059 x 1016 moles of Ba
12How many hydrogen molecules are present in 2.356
x 1019 moles of H2O?
132.838 x 1043 molecules of H
14How many moles are present in 1.254 x 1045
molecules of Nitrogen?
152.082 x 1021 moles of N
16How do you go about converting moles to grams or
grams to moles?
17Use the molar mass
18Calculate the number of H atoms in .350 mol of
C6H12O6?
192.53 x 1024 H atoms
20Arrange the following samples in order of
increasing of C atoms (a) 12 grams C, (b) 1
mol C2H2, (c) 9 x 1023 molecules of CO2
21(a), (c), (b)
22How many molecules of O are in 12.24 g of H2O?
234.095 x 1023 molecules of O
24What is an empirical formula?
25It is a chemical formula that tells us the ratio
of atoms within the compound with the smallest
integers.
26What is the step-by-step process that leads to
the empirical formula from grams of each element?
27Grams of each element ? Use molar mass to convert
? Moles of each element ? Calculate mole ratio ?
empirical formula
28Ascorbic acid contains 40.92 C, 4.58 H, and
54.50 O by mass. Find the empirical formula.
29C3H4O3
30What is the molecular formula of mesitylene if
its molecular weight is 120 amu and its empirical
formula is C3H4?
31C9H12
32Combusting .255 g of isopropyl alcohol produces
.561 g of CO2 and .306 g of water. Determine the
empirical formula of isopropyl alcohol.
33C3H8O
34How many grams are in .239 moles of water?
354.30 grams of water
36How many liters are in 2.09 moles of water? (1g
water 1 cm3)
37.0376 L
38How many molecules of C are in 7.05 L of CO2?
391.90 x 1023 molecules of C
40How many moles of H2O are formed when 6.79 grams
of C2H4O2 are combusted in open air?
41.226 moles of water
42How many grams of H are produced when 9.2 grams
of C2H4O2 are combusted in air?
43.61 grams of H
44What ratio is used to convert b/w amounts of
reactants products in a reaction?
45Mole ratio
46How many moles of O2 are used to make 2.3 moles
of CO2?
472.3 moles of O2
48How many grams of NaOH form when 4.2 moles of
Na2O and 4.2 moles of water combine?
49340 grams of NaOH
50How many moles of sulfuric acid form when .356
grams of SO3 and 1.98 grams of water combine?
What is the limiting reactant?
51.00444 moles of acid, SO3
Daily Double!!!
52How many liters of .36 M HCl does it take to
react with excess Magnesium hydroxide to form
4.55 grams of Magnesium chloride?
53.27 L HCl
54What are the units used to convert moles to grams
or grams to moles?
55Molar Mass- Grams per mole (g/mol)
56What is the difference between a molecular
empirical formula?
57An empirical formula reflects the smallest ratio
of atoms, while the molecular formula does not.
58How many molecules of Cl are in 9.67 x 104 grams
of Magnesium chloride?
591.22 x 1027 molecules of Cl
60How many grams of N are present in 35 mL of .40 M
NH4OH solution?
61.20 grams of N
62If the empirical formula of a compound is C4H8O
and the mass of the compound is 216 grams, what
is the molecular formula?
63C12H24O3
64Final JeopardyWhat is the molecular formula of a
compound with empirical formula CH4 and mass 144g?
65C9H36
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