Conversion Factors
What's in A Chemical Formula
Percent composition
Empirical Formula
Molecular Formula
100

This conversion factor named after its founder and equal to 6.022 e^23.

Avogadro's Number

100
This value is the number of moles in 98.5 grams of gold.
What is 0.5 moles (or half a mole)?
100
The equation for determining the % by mass of O in H
What is: % mass = (g O/g H2O) x 100 OR % mass = 16/18 x 100?
100
This is the empirical formula for N4O10.
What is N2O5?
100
This type of analytical chemistry technique is used to determine the % composition of elements in compounds, empirical and molecular formulas.
What is elemental analysis.
200

This handy human invention is where to look to find the molar mass of 1 mole of an element or a compound.

The periodic table

200

The number of aluminum atoms in one formula unit of aluminum oxide.

What is 2?

200
This value 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
The empirical formula of the anticancer drug altretamine is C3H6N2. The experimental molar mass is 210 g/mol. What is the molecular formula?
What is C9H18N6.
300

This is the conversion factor helps understand how many decimeters are in 1 meter.

What is 10 decimeters = 1 meter?

300
The number of moles of oxygen in 5 moles of magnesium sulfate.
What is 20?
300
This is the percent composition of hydrogen in ammonium ion.
What is 22.2% H?
300
The name of the compound that is 88.89% oxygen and the remainder hydrogen.
What is water?
300
The empirical formula of a compound is C2OH4 and it has a molar mass of 88 g/mol.
What is C4O2H8?
400
The name of the compound, and the number of moles of O in 3 mol Ca(NO3)2
What is calcium nitrate sum and 18 moles of O.
400
The approximate number of water molecules in 180. g of water (no calculator).
What is 6.02 x 10^24 molecules?
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
The conversion factor that describes the number of picograms in one gram.
What is 1012 pg = 1 g
500
The chemical formula of sodium phosphite, and the number of oxygen atoms in 2 moles of the same.
What is Na_3(PO3) and 3?
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?
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