A sample of Ethane (C2H6) has a volume of 45.6 L at a pressure of 100.9 kPa and a temperature of 37.8˚C. What is the number of moles of the Sample? R=8.31 L kPa/K mol

Which type of fossil does this image depict?

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.