In aqueous solution, and in contact with the right catalyst, reactant A is converted to product R by the elementary reaction A $2$R$.$ Find the mass of catalyst needed in a packed bed reactor for $90\%$ conversion of$10*$ mol A$/$hr of feed having CAo $=103$ mol$/$m$\text{'}.$ For this reaction$18\mathrm{.}34.$ k$*=8\backslash$times $10-*$ m$/$m beds