Questions asked by mrcoolerstar

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• What is the concentration of #[OH^-]# in a solution of 0,025 M NH3?
  
• We dissolve 0.500 g of an organic acid #C_6H_10O_4# in water and titrate the solution with 0.250 mol/L KOH. It takes 27.4 mL of KOH to neutralize the organic acid. It is a monoprotic or polytropic acid?
  
• What is the pH at the half equivalence point when 50.0 mL of 0.200 M NaOH is titrated with 0.100 M HCl? The starting pH is 13.3.