What is an IB education? The IB programme continuum of international education This document is provisional pending review of the IB learner profile. Additional resources to support and communicate What is an IB Education? will be available in 2013â14.
Hello Ariana! Molecular weight and diffusion are inversely proportional; the greater the molecular weight, the slower the rate of diffusion. In fact, certain molecules can never pass through membranes, thus protecting the cell. I am not sure I understand your theory and second question.
Both atomic weight and molecular weight are defined relative to the mass of the isotope carbon-12, which is assigned a value of 12 amu. The reason the atomic weight of carbon is not precisely 12 is because it is a mixture of isotopes of carbon.