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Vocabulary
Moles Problems
Percent Composition
Empirical Formula
Formula Mass
100
6.02X10^23
What is Avagadro's Number?
100
6.02X10^23
What is "How many H+ ions are found in 1.00 mol of H2O?"
100
H= 11.19% O= 88.80%
What is the percent composition of H2O?
100
S3O4
What is the empirical formula of 60.0% S and 40% O?
100
18.015 g/mol
What is the mass of H2O?
200
a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
What is an Empirical Formula?
200
1.806X10^24
What is "How many Mg2+ ions are present in 3.00 moles of MgCl2?"
200
Cu= 28.4% Br= 71.6%
What is the percent composition of CuBr2?
200
H2S2O3
What is the empirical formula of 1.8% H, 56.1% S, and 42.1% O?
200
97.973 g/mol
What is the mass of H3PO4?
300
is the percentage of a formula mass represented by each element
What is Percent Composition?
300
189 grams
What is "How many grams are in 4.5 moles of NaF?
300
N= 41.1% H= 11.8% S= 47.1%
What is the percent composition of (NH4)2S?
300
K2Cr2O7
What is the empirical formula of 6.57% K, 35.36% Cr, and 38.07% O?
300
180.126
What is the mass of C6H12O6 (glucose)?
400
mol
What is the unit for a Mole?
400
0.70 moles
What is "How many moles are in 68 grams of Cu(OH)2?"
400
H= 3% Cl= 97%
What is the percent composition of HCl?
400
NO2
What is the empirical formula of 30.4% nitrogen and oxygen?
400
310.18 g/mol
What is the mass of Ca3(PO3)2?
500
the mass of one mole of a substance
What is Molar Mass?
500
929.5 grams
What is "How many grams are in 1.11 moles of Mn3(SO4)7?"
500
Al= 16% S= 28% O= 56%
What is the percent composition of Al2(SO4)3?
500
As2O3
What is the empirical formula of 75.74% As and Oxygen?
500
837.25 g/mol
What is the mass of Mn3(SO4)7?