e Using 0 9850 M NaOH in your calculations instead of the

Last updated: 6/15/2023

e Using 0 9850 M NaOH in your calculations instead of the correct value of 1 300 M NaOH Hint Look up your molarity calculation to see what happens to the answer if the wrong NaOH molarity is used 3 Primary standards are very pure solids They have the advantage that they can be weighed using an analytical balance and they are stable under laboratory condi tions In an experiment the primary standard oxalic acid dihydrate H C O 2H O was used to standardize a solution of sodium hydroxide The reaction can be described by the following equation 2 pts 2NaOH aq H C O 2H O s Na C O aq 4H O 1 a Calculate the molarity of an oxalic acid solution if it takes 34 0 mL of 0 200 M NaOH solution to consume the acid in a 25 0 mL sample of this ox alic acid solution 34 0mL NaOH x 0 0034 10 3L IML x 0 200 mol NaOH IL NaOH X 1 mol H C O 2 mol NaOH b Calculate the mass of H C O 2H O required in the standardization