Inactive Tutor answered 09/14/23
I'm not sure exactly what you're asking, but the data set looks like an exponential decay.
If so, the function fitting the data set might look something like
m = e−a(t−b) + c
where m = mass in grams and t = time in seconds
a, b, and c would be values obtained from some kind of curve fitting procedure.
If you need to do curve fitting, it should be possible to do this using a graphing calculator (I like Desmos for this) or Excel.
A Google search for "exponential regression" should turn up something useful.