A) Using flowrate and fluid properties, you can calculate Reynolds number in a pipe, and from that you can obtain the Fanning friction factor for calculating pressure drop. Write equations and describe briefly how you can then calculate a convective mass-transfer coefficient c for mass transfer to the wall. B) Suppose you have a convective heat-transfer coefficient h or a correlation for it. Write equations and describe briefly how you can then calculate a convective mass-transfer coefficient c for mass transfer to the wall.