Conversion Factors
Conversion problems
Percent composition
Empirical Formula
Naming and Writing Chemical Formulas
100
This conversion factor is used to find the number of atoms, molecules, or formula units.
What is 6.02 e 23?
100
This is the number of moles in 98.5 grams of gold.
What is 0.5 moles (or half a mole)?
100
After dividing the 2 masses (elements/total compound), you must multiply by this number always to get the percent composition.
What is 100?
100
This is the empirical formula for N4O10.
What is N2O5?
100
Iron (III) Oxide
Fe2O3
200
This is where to look to find the mass of 1 mole of any element.
What is the periodic table?
200
This is the mass of 6.39 moles of table salt.
What is 373.8 grams?
200
This is the percent composition of hydrogen in water.
What is 11.1% H?
200
This is the empirical formula for a compound that has 48.0% C, 4.0% H and 48.0% O.
What is C4H4O3?
200
SF2
Sulfur Dioxide
300
This is the conversion factor when converting between mass and # of moles.
What is molar mass?!
300
This is the volume of 4.148 moles of fluorine gas.
What is 98.9 liters?
300
This is the percent composition of hydrogen in ammonium ion.
What is 22.2% H?
300
This is the empirical formula for a compound that has 36.0% C, 4.0% H, 28.0% N and 32.0% O.
What is C3H4N2O2?
300
Sodium Sulfate
Na2SO4
400
This is how to find the formula mass of any COMPOUND.
What is the sum of all the molar masses, multiplied the NUMBER of each atom in the formula.
400
This is how many molecules are in 25g of ammonia.
What is 8.86e23 molecules of ammonia?
400
This is the percent composition of nitrogen in (NH4)2S?
What is 41.2% N?
400
This is the empirical formula for a compound that has 24.0 % C, 7.0 % H, 38.0 % F and 31.0 % P.
What is C2H7F2P?
400
NO
Nitrogen Monoxide
500
This is the conversion factor for converting between moles and volume.
What is 22.4 liters in 1 mole?
500
This is how many atoms are in 100g of potassium hydroxide.
What is 3.22e24 atoms?
500
What is the percent composition of oxygen in copper (II) phosphate?
What is 33.5% O?
500
This is the empirical formula of a compound that has 48.0 % C, 8.0 % H, 28.0 % N and 16.0 % O.
What is C4H8N2O?
500
Copper (II) Chloride
CuCl2
M
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