Maintain at least three significant figures when recording data and performing calculations. A. Standardization of a Sodium Hydroxide Solution molar mass 2 4. og /mu Calculate the approximate mass of NaOH required to prepare 500mL of a 0.15MNaOH solution (Part A.2). 0NaOH0.5L1L0.15molNaOH1mOl4.0=3gofNaOH Calculate the approximate mass of KHC8H4O4 for the standardization of the NaOH solution (Part A.3). 5. Part A.3. Calculate the mass of KHC8H4O4 (molar mass =204.23g/mol ) that reacts with 15mL of the 0.15MNaOH solution prepared in Part A.2. Express this mass KHC3H4O4 to the correct number of significant figures and record the calculation on the Report Sheet. Experiment 9139 6. a. Complete the following table of Trial 1 (See Report Sheet.) for determining the molar concentration of a standard NaOH solution, followed by the determination of the molar concentration of a monoprotic acid solution according to the experimental procedure. Record calculated values with the correct number of significant figures. 6. b. For Trials 2 and 3 , the molar concentration of the acid was 0.0922M and 0.0856M respectively. a. What is the average molar concentration of the acid solution? Data Analysis, B. b. What are the standard deviation and the relative standard deviation (\%RSD) for the molar concentration of the acid solution? Data Analysis, C and D