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.
Density (Weight of common materials). Density is the function of weight per volume. Density and specific gravity are cousins except specific gravity is the comparison to an water rather than a pure weight per volume measurment. This page deals more with weight of common materials in the form of a one inch cube.ust figure out the volume as measured in cubic inches and then multiply this number by what ever number follows the material listed and you will have the weight in pounds of what ever it is you are calculating.