1) Both H2PO3 and HS are amphoteric Write an equation toshow how H2P...

1). Both H2PO3âˆ’ and HSâˆ’ are amphoteric. Write an equation to show how H2PO3âˆ’ can act...

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Chemistry

1). Both H2PO3âˆ’ and HSâˆ’ are amphoteric. Write an equation toshow how H2PO3âˆ’ can act as a base with HSâˆ’ acting as an acid.Express your answer as a chemical equation. Identify all of thephases in your answer.
2). Determine the pH of each of the following solutions.
a). 8.59Ã—10^âˆ’2M HClO4 b). a solution that is 4.7Ã—10^âˆ’2M in HClO4 and5.1Ã—10^âˆ’2 M in HClc). a solution that is 1.10%HCl by mass (Assume a density of 1.01 g/mL for thesolution.)
3). Determine thepH of an HF solution of each of the followingconcentrations.
a). 0.270 M b). 5.10Ã—10^âˆ’2 M c). 2.30Ã—10^âˆ’2M d). In which cases can you not make the simplifying assumptionthat x is small?
4). What volume of 0.879 M KOHsolution is required to make 3.63 L of a solution with pH of12.8? Express your answerwith the appropriate units.

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4.2 Ratings (668 Votes)

1 pH 128 Thus pOH 14 pH 12 Now OH 10pOH 0063 Now KOH Kaq OHaq Thus KOH 0063 M Now since the moles of KOH remains constant after dilution therefore applying M1V1 See Answer

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