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).
Calculating Ka from the pKa. The Ka for an acid is calculated from the pKa by performing the reverse of the mathematical operation used to find pKa. Ka = 10-pKa or Ka = antilog ( - pKa) Example: Calculate the value of the ionization constant for the ammonium ion, Ka, if the pKa is 9.74.