I have a chemistry report to do on the rate of reaction on Berocca tablets. The problem I'm having is with the data.
Firstly
1 tablet in 23 degrees disolves in 250 seconds
Halves in 175 seconds
quarters in 158 seconds
and powdered in 39 seconds to completely disolve.
The temperature is fine, I'm getting more than double the rate with 2.8 times the temperature.
But looking at the surface area I can't understand why, with Halves you have an extra 350mm2 surface area, and with quarters you have an extra 800mm2 surface area. So why is the rate of reaction significantly more between 1 and halves, than it is for halves and quarters?
Part 2 of the question, does the amount of water affect the rate of reaction over time. I understand there must be a saturation point in which the water may not take any more of the powder in. So does this rate of reaction slow down as more of the tablet is being introduced to the water?