, pOH, AND STRENGTH THE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE CHEMISTRY: A CASE FOR THE CONCEPTS OF pH, pOH, AND STRENGTHTHE EFFECTIVENESS OF PREDICT–OBSERVE–EXPLAIN TECHNIQUE IN PROBING STUDENTS’ UNDERSTANDING ABOUT ACID–BASE ...
15.3AcidandBaseStrength 15.4EquilibriaInvolvingWeakAcidsandBases 15.5BufferSolutions 15.6Acid-BaseTitrationCurves 15.7PolyproticAcids 15.8OrganicAcidsandBases:StructureandReactivity 15.9ExactTreatmentofAcid-BaseEquilibria GeneralChemistryII Cyanidinisblueinthebasicsapofthecornflower ...
The pH of the solution at its equivalence point will be 7 if we are titrating a strong acid with strong base, as in HCl + NaOH → H2O + NaCl. But if the acid is weak, as in the above plot, the solution will be alkaline. This pH can be calculated fromCbandKbin a manner exactly...
pOH = - log [OH-] pK = pOH + pH = 14 If pH =3, pOH = 11 [H+]=10-3, [OH-]=10-11 Definition of pH pH Commonly represented as a range between 0 and 14, and most natural waters are between pH 4 and 9 Remember that pH = - log [H+] ...
By ‘AB property’ we mean the propensity of the substance to enter AB interactions, which can often be measured in terms of the strength of its interaction with reference reactants. From: Advances in Colloid and Interface Science, 2003 ...
Hydrogen halide acid strength (high to low) HI > HBr > HCl >>> HF pH of 10M HCl pH = -1; -log(10^1) pH of 1M HCl 0; -log (10^0) pH of 0.1M HCl 1; -log(10^-1) Ka of HF + H2O -> F- + H3O+ Ka = [F-][H3O+] / [HF]pure liquids (H2O) not included in Ka...
What is the conjugate acid and base of SH-1? Explain how the structural features of acids (A-H) can be used to predict their relative strengths. What is true of a Lewis acid? What makes hydrofluoric acid dangerous? Which of the definitions of the Bronsted-Lowry and Lewis definitions for...
Measuring pH There are two ways to measure pH: pH Meters Indicators Probes must be calibrated (set against a known pH) Indicator: weak acid or base that undergoes a colour change with the gain or lose of H+. Colour changes at various pH depending on indicator Le Chatelier’s applies to ...
What is the strength of the hydrohalic acids from weakest to strongest (HF, HCl, HBr, HAt)? What are the pH ranges for acids and bases? What are the properties of acids and bases? What is the name of the base that has the fo...
1.Understandthedifferencebetweenstrongandweakacids andbases. 2.UnderstandtheArrhenius,Brønsted-LowryandLewis conceptsofacidsandbases. 3.Understandtheacid-basepropertiesofsaltsolutions. 4.Understandtheconceptsoftheautoionizationofwater andpHscale.(Coveredinlab.) ...