What formula can be used to find the surface area on the rate of reaction, when adding rennies or cal-C-vitas to vinegar?

To clarify, I assume you are asking about the effect of adding Rennies or Cal-C-Vitas to vinegar on the rate of a chemical reaction. Surface area does not directly affect the rate of reaction. However, if you are referring to the rate of reaction in a different context, please provide more information.

The rate of a chemical reaction typically depends on factors such as temperature, concentration of reactants, presence of catalysts, and pressure (if it is a gas-phase reaction). Surface area is not one of the factors that directly influence the rate of reaction.

If you have any additional information or specific context about the reaction you are referring to, please provide it so that I can assist you further.