One very important concept in Chemistry is the idea that 'volume' (3-D space) can be expressed as BOTH a cubic length (like the cone example; cubic centimeter cm3 ) and as a fluid volume measurement such as liter, milliliter, tablespoon, cup, gallon, etc. The simplest relationship is that 1cm3=1mL. ( as a variable) - There is an equation in chemistry regarding the osmotic pressure of a solution where pi is treated as a variable V=nRT Solve for Osmotic Pressure. The speed of light is equal to the frequency of light times the wavelength of light (students will learn in lecture what frequency and wavelength of light actually mean). c=v c= speed of light (a constant value, 3.010x meters per second) v= is a Greek letter that stands for frequency and is called 'nu' = is a Greek letter that stands for wavelength and is called 'lamda' 46