Calculate the molecular weight of a molecule with the molecular formula: C2H5NH2. Refer to the atomic weights below. H = 1 amu O = 16 amu C = 12 amu N = 14 amu

The molecule below contains a functional group that is hydrophilic.  

The paper towel floated at the end of the surface tension experiment of Lab Exercise 3.

Name the molecule with the following molecular formula: C9H20.

Give the molecular formula of pentanal.

The atom below is attracted to which atom in a water molecule and why?  

Water molecules are positioned closer together in the ice phase than in the liquid phase.

Name the hydrocarbon below.  

The molecule below contains polar covalent bonds.  

What is the charge on the large green atom below?