(4) The pKof hydrogen peroxide, H2O2, is 11.6. Determine the pH of a 1.00 M aqueous...
250 mL of 0.200 M aqueous ethylamine (C2H5NH2(aq), Kb = 5.6 × 10–4) is titrated with 0.200 M HCl(aq). Which of the following indicators would be most appropriate for detecting the equivalence point of the above titration? The range of pH values for which each indicator undergoes a color change is given in parentheses. A. Crystal Violet (pH 0-1.8) B. 2,4-Dinitrophenol (pH 2.5-4.0) C. Eriochrome Black T (pH 5.0-6.5) D. m-Nitrophenol (pH 6.8-8.5) E. Alizarin yellow (pH 10.0-12.0)
What is the pH n aqueous solution with a hydroxide ion concentration of 1.60 x 10-4 M? O 14.2 03.80 O 10.2 0 -0.204 Consider the reaction. HF(aq) + KOH(aq) — KF(aq) + H20(1) What is the net ionic equation for the chemical reaction? HF(aq) + K+ (aq) + OH(aq) — K+(aq) + F-(aq) + H+(1) + OH-(1 HF(aq) + K+ (aq) —> K+ (aq) + H2O(l) HF(aq) + K+(aq) + OH- (aq) — K+(aq) +F-(aq) + H2O(1) HF(aq) +...