Q:

What are some of the properties of acids?

A:

Quick Answer

Some of the properties of acids are that they conduct electricity when they are dissolved in water, liberate hydrogen when they react with active metals and, when combined with a base, will produce a salt and a neutralized base. Acids also have a pH which is less than 7 in an aqueous solution, and will change the color of blue litmus paper to red. In an operational sense, acids increase the concentration of H+ ions when they are dissolved in water.

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Full Answer

A lower pH of an acid in an aqueous solution indicates a greater degree of acidity, and results in a higher concentration of positive ions within the solution. Acids found in everyday life are usually found in solution. The stronger acids, such as hydrochloric acid (HCl), and some higher concentrations of weak acids tend to be corrosive.

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Related Questions

  • Q:

    What are neutral substances?

    A:

    Neutral substances are chemicals that have no properties of either acids or bases, have equal parts hydrogen and hydronium ions and don't change the color of litmus paper or other acid-base indicators. Neutral substances include water, glucose solutions and salt solutions. These chemicals have a pH of 7.0 on a scale of 14. In terms of toxicity, neutral substances are generally harmless to the touch.

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  • Q:

    How do you define Bronsted-Lowry acid?

    A:

    Bronsted-Lowry acids are defined as acids that serve as donors for hydrogen protons. Alternately, any base that receives hydrogen protons is called a Bronsted-Lowry base.

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  • Q:

    What do ninhydrin test results mean?

    A:

    A ninhydrin test is used to detect the presence of amino acids. During the test, which boils a solution of ninhydrin, if there are amino acids present, the solution turns a blue or purple color. Certain amino acids, such as proline and hydroxyproline, will turn the solution yellow. Ninhydrin spray is often used at crime scenes to make fingerprints visible because they contain trace amounts of amino acids.

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  • Q:

    Which two functional groups are always found in amino acids?

    A:

    The two functional groups always found in amino acids are carboxyl and amino groups. Both groups are acidic. A peptide bond occurs when the carboxyl group of one amino acid joins the amino end of another.

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