Describe what hard water is and how a water softening unit works. Provide balanced chemical equations to show how sodium sulphate can remove these ions (Magnesium and Calcium).

The first was no problem, but I am having trouble trying to get through the second part balancing chemical equations. I think that the chemical formula for sodium sulphate is Na2SO4 however I don't know where to go from there.

Any help you can give me would be so great! Thanks

asked by Hannah
  1. What happens is that the Na of Na2SO4 (many products use NaCl instead of Na2SO4) to replace the Ca, Mg, and other ions such as Fe. In simple fashion, if we let the resin be x, then
    NaX + Ca^+2 ==> CaX2 + 2Na^+.
    Mg and Fe would look the same.
    Here is a Wikepedia article you can read if you need more information.

    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science Question

    Which of the following statements best describes what is happening in a water softening unit? The hard ions are all trapped in the softener, which filets out all the ions. The ions in the water softener are softened by chemically
  2. Chemistry

    An ion exchange process may be used to remove ions causing hardness of water. Outline how this works. 1. Ca2+ and Mg2+ are the ions that cause the hardness of water, one example of softening the water is to react the hard water
  3. chemistry-chemical equations

    How do I write the balanced chemical equation for Copper +nitric acid -> copper(II)nitrate+ nitrogen dioxide + water
  4. Chemistry

    Write balanced equations that describe the following reactions. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) a) the dissociation of perchloric acid in water b) the
  5. Science

    Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?
  6. Science

    Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?
  7. chem help

    i just don't know where to begin/how a) Write a balanced chemical equation for: potassium carbonate + magnesium chloride b) Write a balanced chemical equation for: sulfuric acid + calcium carbonate c) Write a balanced chemical
  8. science

    List at least three physical properties of water which contain numerical values. Describe a chemical proterty of water which involves a chemical reaction.
  9. Chemical Equations

    Starting with nitrogen and hydrogen, millions of kilograms of ammonia are produced every year for use as a fertilizer. Use this info to answer the next 3 questions. Communicate the balanced chemical equation using molecular
  10. Water Treatment

    a)What would be the advantage of placing softening before cascade aeration? (Only one answer can be correct). Low oxygen concentration /Less pumping phases /High ammonium concentration /Less carbondioxide removal during cascade

More Similar Questions