Conversion Factors
Conversion problems
Percent composition
Empirical Formula
Molecular Formula
100

This conversion factor is the definition of 1 mole.

What is 6.022 x1023?

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 N2O10.

What is NO5?

100

This is the difference between molecular formula and empirical formula.

What is empirical formula shows the simplest ratio of atoms while molecular formula shows the exact number of each atom in 1 molecule? (subscripts are different)

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 KCl.

What is 476 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

This is the first step in calculating the molecular formula if empirical formula and molar mass of molecular formula is given.

What is find the molar mass of the empirical formula?

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, F2.

What is 92.9 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

This is the molecular formula of a compound if its empirical formula is C2OH4 and it has a molar mass of 88 g/mol.

What is C4O2H8?

400

This is how to find the molar mass of any COMPOUND.

What is the sum of (the number of atoms of an element times its molar mass)?

400

This is how many molecules are in 25g of ammonia.

What is 8.85x1023 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

This is the molecular formula for a compound that has an empirical formula of C4H8N2O and a mass of 200 g/mol.

What is C8H16N4O2?

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 3.22x1024 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

This is the molecular formula of a compound that has an empirical formula of C5H12N2 and a molar mass of 300 g/mol.

What is C15H36N6?