Written Assignment Unit 2.docx - Written Assignment Unit 2...

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Written Assignment Unit 2Answer 1:pH shows the concentrations of H+ ions in the solutions.H2O + H+ => H3O +Therefore, the water solution of H+ ions exists as H3O+. It can be concluded that their concentrationwill be equal.pH = -log[H+].If concentration = 0.1 M =>101=> pH = 1If concentration = 0.01M =>102=> pH = 2Therefore, the lower the acid concentration, the higher the pH.If acidic solution is very diluted like106M, pH = 6.In case of bases there is another unit pOH that shows the concentration of OHions in the same waylike pH pOH + pH = 14, or pH = 14 – pOH In this case diluting the base we increase pOH andincrease pH at the same time.If the concentration of base is101M, pOH = 1, so pH = 13.If the base is more diluted like104M, pOH = 4, and pH = 10.The lower concentration of base means the lower magnitude of pH only because it is negativelogarithm.Answer 2:The H2PO4- ion acts as a proton donor, while the HPO42- ion is a proton receptor. In a PBS solution,Na2HPO4 is separated into Na + and HPO42-. As a result, the molecule acts as a proton receptor. In

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Term
Summer
Professor
NoProfessor
Tags
pH, Sodium chloride, Sodium hydroxide

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