Uploaded April 2014 | Updated September 2026, 2 hours ago
Mr. Key uses mass spectrometry and PED's to explain how we establish the empirical and molecular formula from the percent composition of an unknown sample.
Please note that all questions, comments and critiques are welcome. However, because the primary purpose of these videos is educational for students/educators, the comments are moderated. Any comments that are deemed abusive, inappropriate, or unrelated to the topic matter will not be posted and the user potentially blocked.
Mr. Key uses mass spectrometry and PED's to explain how we establish the empirical and molecular formula from the percent composition of an unknown sample.
Please note that all questions, comments and critiques are welcome. However, because the primary purpose of these videos is educational for students/educators, the comments are moderated. Any comments that are deemed abusive, inappropriate, or unrelated to the topic matter will not be posted and the user potentially blocked.
