# Carbon dating exponential functions

As you can see from Graph 2, the larger the coefficient the greater the 'starting amount'.Conversely, the smaller coefficients lead to smaller/lower 'starting amounts'.Solutions: Raoult’s law; Molecular weight determination from lowering of vapour pressure, elevation of boiling point and depression of freezing point.Surface chemistry: Elementary concepts of adsorption (excluding adsorption isotherms); Colloids: types, methods of preparation and general properties; Elementary ideas of emulsions, surfactants and micelles (only definitions and examples).The last figure I heard was that there are currently eight nuclear subs on our ocean floors. It doesn't work for sea creatures and other things that are under water. Then they measure how much is left in the specimen when they find it. It comes from cosmic rays that rain down on the earth (and us) from outer space.The online Exponential Decay Calculator is used to solve exponential decay problems.It will calculate any one of the values from the other three in the exponential decay model equation.

However, I note that there is no beginning or ending amount given.

How am I supposed to figure out what the decay constant is?

I can do this by working from the definition of "half-life": in the given amount of time (in this case, hours.

for a parameter and constant (known as the decay constant), where is the exponential function and is the initial value.

Exponential decay is common in physical processes such as radioactive decay, cooling in a draft (i.e., by forced convection), and so on.