Directions:
Round all percent composition answers to one after the decimal. If you use percent composition to find empirical formula, you may want to keep a few more decimal places.
Directions:
Round all percent composition answers to one after the decimal. If you use percent composition to find empirical formula, you may want to keep a few more decimal places.
Strychnine, a rat poison, has the following chemical formula:
You are responsible for determining an unknown over-the-counter drug substance. In the lab, you ran a test to determine that the unknown drug sample contained the following percent composition:
60.00% Carbon
4.48% Hydrogen
35.53% Oxygen
What is the empirical formula?
Identify the drug sample:
Caffeine contains the following percent composition:
49.5% Carbon
5.15% Hydrogen
28.9% Nitrogen
16.5% Oxygen
What is the empirical formula?
If the molecular mass is approximately 195.0 g/mol.
What is the molecular formula?
Aspartame, an artificial sweetener, contains the following:
4.762 moles Carbon
6.160 moles Hydrogen
0.680 moles Nitrogen
1.699 moles Oxygen
Determine the empirical formula:
Nitroglycerine is a compound that is used in heart medications. It can also be used in explosives!
A 40.0-gram sample of Nitroglycerine contains:
6.348 grams Carbon
0.864 grams Hydrogen
7.260 grams Nitrogen
25.364 grams Oxygen
Determine the empirical formula:
If the molecular mass is approximately 227.0 g/mol.
What is the molecular formula?