A student titrates a fatty acid (CnH2n+1CO2H) solution with…

A student titrates a fatty acid (CnH2n+1CO2H) solution with NaOH as shown in this reaction:                     CnH2n+1CO2H  +  NaOH   —->  Na(CnH2n+1CO2) +  H2O How many moles of NaOH will react with 1 mole of CnH2n+1CO2H? If 30.95 mL of 0.200 M NaOH solution is required to titrate 0.893 g CnH2n+1CO2H, what is the molar mass of the fatty acid?