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- What is the molar concentration of hydroxide ions in a (7.50x10^-4) mol/L solution of hydroioidic acid? The answer should be recorded in scientific notation to three significant figuresThe hydroxide ion concentration, [OH-], of an aqueous solution of 0.424 M ethylamine (a weak base with the formula C2H5NH2) , Kb = 4.3×10-4, is: [OH-] = _________M.What are all the ionic and molecular species present in a 0.001 - M aqueous solution of C6H4OH(CO2H) in order of descending concentration?
- The instructor reveals that the weak acid is hypochlorous acid, HOCl. The known Ka HOCl is 4.0x10-8 . What is the percent error in the expirement ?In a 1.0x10-6M solution of Ba(OH)2(aq) at 25 degrees Celsius, arrange the species from greatest amount to least amount by their relative molar amounts in solution. Species: Ba(OH)2 Ba2+ H3O+ OH- H2OIndicate whether the chemical species HC6H5O72- acts as an acid or base when added to water. Please justify your answer with QUANTITATIVE evidence
- What is the hydronium ion concentration (in mol/L) of an aqueous solution with a pH of 3.4? State your answer in scientific notation using three significant figures.Give the name of the following compounds, classify them as strong/weak/non-acid/base/electrolyte and write its reaction in water. 1. H3PO4 2. Formula for ammonium sulfate. Classify as well.Determine the pH of the following solutions, using the information provided. 3.00 × 10–9 M KOH
- The odor of vinegar is due to the presence of acetic acid, CH3CO2H, a weak acid. List, in order of descending concentration, all of the ionic and molecular species present in a 1-M aqueous solution of this acid.State whether each of the following statements is true orfalse. Justify your answer in each case.(a) When methanol, CH3OH, is dissolved in water, a conductingsolution results.(b) When acetic acid, CH3COOH, dissolves in water, thesolution is weakly conducting and acidic in nature.The first photo is the Question and the second is the basis. Kindly write your solutions and explain please