mole jeopardy moles and grams avagadro!percent composition empirical formula molecular formula 10 20...
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Mole JeopardyMoles and
GramsAvagadro! Percent
CompositionEmpirical Formula
Molecular Formula
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
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When you see “g” ina conversion factor, you
should do what?
Category 1 – 10 points
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The molar mass is the massof 1 ______ of atoms.
Category 1 – 20 points
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What tool do we need to use to findmolar mass?
Category 1 – 30 points
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What is the mass of 3.5 moles of NaOH?
Category 1 – 40 points
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How many moles of NaCl are in 34.2 g of NaCl?
Category 1 – 50 points
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A mole of substance containshow many particles?
Category 2 – 10 points
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When writing conversion factors,what number always pairs with
mol?
Category 2 – 20 points
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Just as 12 eggs = a dozen,__________ representative particles = a mole
Category 2 – 30 points
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How many moles of magnesium is 1.25 X 1023
atoms of magnesium??
Category 2 – 40 points
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Convert 32.1 g CH4 to molecules.
Category 2 – 50 points
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To calculate % composition, we use what equation?
mass of _________% Composition = ------------------------
mass of _________
Category 3 – 10 points
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What is the first thing you have to dowhen given a % composition problem?
Category 3 – 20 points
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Find the % composition ofC3H8.
Category 3 – 30 points
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What is the percent of nitrogen in NH3?
Category 3 – 40 points
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What is the percent of sodiumin NaCl?
Category 3 – 50 points
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An empirical formula gives the lowest______ - ______ ratio of elements in a compound.
Category 4 – 10 points
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In empirical formula problems, youwill be given masses of elements. The
first thing you should do is what?
Category 4 – 20 points
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The 2nd step in an empirical problemis to do what?
Category 4 – 30 points
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Find the empirical formula. A compound contains
9.31g of Ag and 0.69g of O.
Category 4 – 40 points
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A compound contains 25.9% N and 74.1% O.
Find the empirical formula.
Category 4 – 50 points
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Can a molecular formula and an empirical formula
be the same?
Category 5 – 10 points
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TRUE OR FALSESeveral compounds can have the same
empirical formula, but different molecular formulas.
Category 5 – 20 points
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TRUE OR FALSEThe empirical formula could be
triple the molecular formula.
Category 5 – 30 points
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Find the molecular formula of…A compound with an empirical formula
of C2H8N and a molar mass of 46 grams per mole.
Category 5 – 40 points
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Find the molecular formula of…A compound with an empirical formula
of CFBrO and a molar mass of 254.7 grams per mole.
Category 5 – 50 points