Chemistry

posted by .

In regards to atomic emission spectroscopy:

Explain why the intensity of the color gets brighter when the metal salt concentration is higher. Salt is any ionic compound that has positive ions(called cations) and their associated negative ions (called anions). For example, lithium nitrate is a salt as well as sodium chloride.

AND

Explain why you see a colored flame when you burn the salt solution. That is, what is going on with the salt when it's heated to give off the color light? Which part of the salt, the metal ion or its anion, gives off the color light?


I want to gather an understanding of this, but I fear that its a bit over my head. Thanks!

  • Chemistry -

    Suppose we take the Na ion as an example. It has one electron in the outside shell. When anything containing the Na ion is placed in a flame, (NaCl, Na2SO4, NaBr, etc), the atom absorbs energy from the flame and the outside electron is moved to an outer energy level. That is an "excited" Na atom. In a very short time, the electron will move to a lower energy level. It will lose some of the energy when it does and the energy emitted by the excited ion is in the form of light. That is the yellow light you see when a sodium salt is placed in the flame. Why does it get more intense when the solution is more concentrated? Because more ions doing their thing gives more light and more light means higher intensity.

  • Chemistry -

    Okay that makes much more sense than before, lol. Thanks!!!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Criticize the following statements. 1. In an ionic compound, the number of cations is always equal to the number of anions. [Is it ok to say 'not always'?
  2. Chemistry 130

    Can someone please help me and let me know if these questions and answers are correct?
  3. Chemistry

    Please help me....are these questions right or no?
  4. Chemistry

    How did the metal atoms become ions? Metal atoms became ions by losing electrons to form positively charged ions(cations). How did the nonmetal atoms become ions?
  5. Chemistry

    In the experiment shown below, you add some salt to water. A = All of the solid dissolves (no solid at the bottom). B = You add more water and the solid stays dissolved. Select all of the following that are true about solutions A and …
  6. chemistry

    Write the formula of the ionic compound that forms between a. copper(I) ions and chloride ions---CuCl b. copper(II) ions and hydrogen sulfate ions--Cu(HSO4)2 c. lithium ions and iodide ions--LiI d. cobalt(III) ions and phosphate ions---CoPO4
  7. chemistry

    A pan full of hot salt water, NaCl(aq), is cooled and NaCl(s) precipitates. Explain why this happens. Chloride ions are more strongly attracted to the metal in the pan than the sodium ions at low temperatures. As the vapor pressure …
  8. chemistry

    The concentration of a certain ionic compound in aqueous solution is 0.186mol/L . It is only solute in the solution. The concentration of pottassium ions in the same solution ia 0.558mol/L. Explain why the concentrations of the ions …
  9. Chemistry

    Explain why iron corrodes more quickly in seawater than in freshwater. I'm getting conflicting answers from searching on Google; is it because the corrosion of iron is a redox reaction, which involves a transfer of electrons, and therefore …
  10. Chemistry

    Do positive ions or the negative ions cause the change in flame color ?

More Similar Questions