You need the radius or diameter of the blender. You need the radius or diameter of the blender. If it's 6 inches. Your answers would be. 71.36 mph @ 4,000 rpm. 356.81 mph @ 20,000 rpm. 3,711 mph if the last one is 208,000 rpm.
Definition of pK a and K a. The definition of K a is: [H + ] . [B] / [HB], where B is the conjugate base of the acid HB. The pK a value is defined from K a, and can be calculated from the K a value from the equation pKa = -Log 10 (K a).
Ka is the acid dissociation constant. Ka= [products]/[reactants] It is used to tell to what extent an acid dissociates in water and how strong of an acid it is. The higher the value of Ka, the stronger the acid is. Also Ka is spoken of often as pKa which is the -log(Ka).