pH
pH, an abbreviation for "potential of hydrogen," is a fundamental concept in chemistry and biology, representing the measure of acidity or alkalinity of a solution. It is determined by the concentration of hydrogen ions present in a substance, with lower pH values indicating greater acidity and higher pH values indicating alkalinity. The pH scale ranges from 0 to 14, with 7 considered neutral. Understanding pH is crucial in various fields, from environmental science to medicine, as it influences chemical reactions, biological processes, and the behavior of substances in natural and artificial environments.
Questions
- What is the H+ concentration (in molarity) of a solution with a pOH of 6.7?
- How does pH change protein structure?
- How does pH affect amino acid structure?
- What is the logarithmic concentration of the hydroxide ion in aqueous solution?
- How should the autoprotolysis reaction of water evolve at HIGHER temperature than #298*K#?
- Calculate the pH of a 0.10 M #H_3PO_4# solution that is also 0.0005 M #(NH_4)_3PO_4#?
- For a solution that is 0.285 M #HC_3H_5O_2# (propionic acid, #K_a=1.3×10−5#) and 0.0888 M HI, calculate the following?
- How to Calculate the pH of 0.180 g of potassium biphthalate (pKa = 5.4) in 50.0 mL of water?
- #"20.0 mL"# of glacial acetic acid (pure #"CH"_3"COOH"#) is diluted to #"1.30 L"# with water. The density of glacial acetic acid is #"1.05 g/mL"#. What is the pH of the resulting solution?
- What is #pOH# of a solution prepared by adding a #15.8*mg# mass of potassium hydroxide to #11*mL# of solution?
- The pH of a solution is 8.7, what is the pOH?
- What is the pH of a 0.050 M NaOH solution?
- How do you calculate the pH of acetic acid?
- What is the pH of a #"0.150-M"# #"NaOH"# solution?
- Which solution has a greater concentration of hydrogen ions (H), a solution with a pH of 3 or one with a pH of 7?
- Why do we use the pH scale to indicate the acidity of a solution rather than simply stating the concentration of hydronium ions?
- If #15.0mL# of glacial acetic acid (pure #HC_2H_3O_2#) is diluted to #1.50L# with water, what is the pH of the resulting solution? The density of glacial acetic acid is #"1.05 g/mL"#
- How do we define #pH#?
- A #10^-3 M# solution has been diluted to 100 times.Calculate the pH of the diluted solution?
- What do we mean by #H^+# or #H_3O^+# in acid-base chemistry?