Electrodeposition of Cobalt from sulfate solution at different pH was investigated using Quartz crystal microbalance QCM coupled with ampriometry [Co = 58.9 g/mol , F = 96485 c/mol]

The QCM has a fundamental frequency of 7.995 MHz and a microbalance frequency change of 1Hz corresponding to 1.34 mg of absorbed or de-absorbed mass change (m) on the crystal surface with an area of 0.2. If ~150 Hz F was absorbed by electrodeposition, what was the m of the electrode?