Homework Help: chemistry

Posted by Rachel on Monday, March 14, 2011 at 3:27pm.

a flask with a volume of 267.5 mL contains a few milliliters of a volatile hydrocarbon. after vaporizing the gas at 100 degrees C, the flask is weighed and found to contain 0.728 grams of hydrocarbon vapor at 755 mmHg. a seperate combustion analysis experiment revealed that the empirical formula osf the hydrocarbon was CH2. What is the molecular formula?

No one has answered this question yet.

Answer this Question

Related Questions

Chemisty! - a flask with a volume of 267.5 mL contains a few milliliters of a ...
Organic Chemistry - Assume that a round bottom flask holds 100 mL and the ...
chemistry - A 150.0 mL flask contains 0.391 grams of a volatile oxide of sulfur...
Chemistry - 1.) A convenient method of determining the volume of a container of ...
AP Chemistry--gas law questions - Hey, My AP Chem class did a lab for determing ...
Chemistry - Flask A contains 500 mL of water at 25 degrees Celsius and flask B ...
CHEM - The mass of an evacuated 255-mL flask is 143.187g. The mass of the flask ...
Chemistry - Two Flasks containing the same inert gas are at the same temperature...
Chemistry - An empty flask weighs 128.632g. After vaporization of a sample of ...
Chemistry - An empty flask weighs 128.632g. After vaporization of a sample of ...

For Further Reading

First Name:
School Subject:
Answer: