Dimensional Analysis Formula Mass Molar conversions Percent Composition Empirical/Molecular Formula
100
Convert 145 grams to megagrams
1.45x10^-4
100
Indium ferrrocyanide
1,111 amu
100
Convert 45.7g H2O to moles
2.54 moles H2O
100
LIthium disulfate
Li:7.3%
S:33.8%
O:58.9%
100
What is the empirical formula for a compound containing 94.07% sulfur and 5.93% hydrogen.
H2S
200
Convert 13.4 milliliters to kiloliters
1.34x10^-5
200
Sodium silicate
184 amu
200
Convert 8.73 mol. CO2 to molecules
5.26x10^24 molecules CO2
200
Lead (IV) oxide
Pb:86.6%
O:13.4%
200
What is the empirical formula for a compound containing 80.68% mercury, 12.87% oxygen and 6.45% sulfur.
H2SO4
300
3.67x10^8 millimeters to kilometers
567 kilometers
300
Zirconium (IV) arsenite
829 amu
300
Convert 0.85g Na to atoms
2.5x10^22 atoms Na
300
Sodium oxide
Na:74.2%
O:25.8%
300
What is the empirical formula for 0.672g Co, 0.569 g As and 0.286g O.
Co3As3O8
400
Convert 6.45x10^28 nanomoles to megamoles
6.45x10^13 megamoles
400
Radium amide
258 amu
400
Convert 1.24 dm^3 Cs2SO4 to molecules
3.33x10^22 molecules Cs2SO4
400
Boric acid
H:4.9%
B:17.5%
O:77.6%
400
Caffeine (molecular mass of 184 g) is 49.47 g of carbon, 28.85 g of nitrogen, 16.48 g of oxygen and 5.20 g of hydrogen. What are the empirical and molecular formulas for caffeine?
EF- C4H5N2O
MF-C8H10N4O2
500
Convert 2.31x10^-9 microbytes to gigabytes
2.31x10^-24 gigabytes
500
Barium Aluminate
562 g/mol
500
Convert 45.8 dm^3 Ga(CN)3 to molecules
1.23x10^24 molecules Ga(CN)3
500
Calcium ferrocyanide
Ca:27.4%
Fe:19.1%
C:24.7%
N:28.8%
500
A sample of ilmenite is found to contain 5.41 g iron, 4.64 g titanium and 4.65 g oxygen. If the molar mass of ilmenite is 455.1 g, with are the empirical and molecular compound?
EF- FeTiO3
MF-Fe3Ti3O9






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