chem - asap

posted by .

i combined agno3 with 25ml of tap water, and it turned faint blue


which ion is present in trace amounts in tap water but not in distillied water? explain. what is the source of the ion in the tap water?

  • chem - asap -

    I would have expected a white turbidity due to AgCl (2AgNO3 + Cl2 ==> 2AgCl(s)). The source of the ppt is from the small amount of chlorine used in most city water systems to purify water for purposes of drinking. The faint blue color you saw could be due to two things but I have no idea which one it is. I would need more information for that.
    1. AgCl decomposes in light to form Ag(s) + Cl2 and the Ag(s) metal is colloidal and violet in color.
    2. The AgCl CAN be blue if the size of the solid particles is right.
    I suspect #1 is more probable than #2.

  • chem - asap -

    The Cl2 reacts with water to form the Cl^- and OCl^-. It's the Cl^- that reacts with the Ag^+ to form AgCl(s).

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Economics

    3. Suppose the Clean Springs Water Company has a monopoly on bottled water sales. If the price of tap water increases, what is the change in Clean Water’s profit-maximizing levels of output, price, and profit?
  2. sci.

    keeping osmosis in mind, would it be better to soak wilted flowers in distilled water or normal tap water?
  3. bob -sci.

    keeping osmosis in mind, would it be better to soak wilted flowers in distilled water or normal tap water?
  4. Chemistry

    I'm going over some post-laboratory questions for Conductivity of Solutions. One of the questions is... From your measurements, what can you say about a) the presence of ionic impurities in tap water?
  5. math

    an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of water per minute, while the other tap can do it at 3l less perminute. (A) what will be the depth of water …
  6. Engineering Economics

    Sales of bottled water in the U.S totaled 16.3 gallons per person in 2004. Water costs .40 cents per bottle.A municipal company provides tap water for $2.10 per 1000 gallons. If the average person drinks two bottles of water per day …
  7. Math

    Tap A was turned on to fill a rectangular tank of 50 cm by 40 cm by 28 cm with water at a rate of 6 liters per minute. After 2 minutes, Tap B was turned on to drain water from the tank at a rate of 2 liters per minute. 6 minutes after …
  8. math

    tap a was turned on to fill a rectangular tank of 50cm by 40cm by 28cm with water at a rate of 6 liters per minute. after 2 minutes, tap b was turned on to drain water from the tank at a rate of 2 liters per minutes. 6 minutes after …
  9. math

    tap a was turned on to till a rectangular tank of 50cm by 40cm by 28cm with water at a rate of 6 liters per minute. after 2 minutes, tap b was turned on to drain water from the tank at a rate of 2 liters per minutes. 6 minutes after …
  10. math

    A tank contains 4L of water at first. Tap A is turned on and water from tap A flows into the container at the rate of 8L per minute. After 3 minutes, Tap B is turned on. Both taps are turned off together after another 5 minutes. If …

More Similar Questions