MOLES
PERCENT COMPOSITION
PERCENT COMPOSITION AS A CONVERSION
EMPIRICAL FORMULA
MOLECULAR FORMULA
100

the volume of 99 mole of Hgas at STP

what is 2,217 L H2

100

the percentage of hydrogen in OH

what is 5.9%
100

the mass of carbon in 82 g of C3H8

what is 67 g of C

100

a substance is made of 32.8 % Cr and 67.2% Cl

what is CrCl3

100

empirical formula is C2H8N and a molar mass of 46 g

what is C2H8N

200

the number of molecules of 5.72 x 102 L of CO at STP

what is 1.54 x 1025 molecules of CO
200

the percentage of oxygen in NaOH

what is 40.0%

200

the mass of hydrogen in 2.14 g of NH4Cl

what is 0.16 g of hydrogen

200

which of the following is an empirical formula

MgO    OR      Mg5O5

what is MgO

200

empirical formula of C2OH4 and a molar mass of 88 g

what is C4O2H8

300

the number of moles in 2.80 x 1024 atoms of silicon

what is 4.65 mol Si

300

the percentage of nitrogen in dinitrogen disulfide

what is 30.4%

300

the mass of oxygen in 90 g of Cl2O

what is 16.7 g of oxygen

300

a substance is made of 40% carbon, 6.7% hydrogen, and 53.3% oxygen

what is CH2O

300

compound with an empirical formula of C4H4O and a molar mass of 136 grams

what is C8H8O2

400

the number of liters in 2.5 g N2

what is 2.0 L N2

400

the percentage of hydrogen in (NH4)2S

what is 11.7%

400

the mass of nitrogen in 125 grams of CO(NH2)2

what is 58.3 g of nitrogen

400

nicotine is 74.1% carbon, 8.6% hydrogen, and 17.3% nitrogen

what is C5H7N

400

a compound with an empirical formula of CFBrO and a molar mass of 253.8 grams

what is C2F2Br2O

500

the number of sulfur atoms in 12.3 g S

what is 2.31 x 1023 atoms S

500

the percentage of sulfur in aluminum sulfate

what is 28.1%
500

the mass of hydrogen in 124 g of Ca(C2H3O2)2 

what is 4.7 g of hydrogen

500

0.0130 mol C;  0.0390 mol H;  0.0065 mol O

what is C2H6O

500

a well-known reagent in analytical chemistry, demethyl-gloxine, has an empirical formula of C2H4NO and a molar mass of 116.1 grams

what is C4H8N2O2

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