One molecule of the antibiotic known as penicillin g has a mass of 5.553×10−22g. what is the molar mass of penicillin g?

Molar mass means the mass of one mole of penicillin.

Now, one mole of penicillin contains 6.022 x 10^23 molecules (That's Avogadro's number).

Therefore:
molar mass of penicillin = mass of 6.022 x 10^23 molecules
molar mass of penicillin = mass of one molecule x 6.022 x 10^23
molar mass of penicillin = 5.553 x 10^-22 x 6.022 x 10^23
                                      = 334.40166 grams

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.