chemistry

posted by .

problem 2.
a sample of calcium chloride weighs 1.64g. it is dissolved in water and silver nitrate solution added.a precipitate of silver chloride weighing 4.24g was formed.determine
the percentage composition of each element.
the simple formular of calcium chloride.

  • chemistry -

    4.24 g AgCl x (1 mol AgCl/143.32 g AgCl) = ?? moles AgCl.
    ??moles AgCl x (35.453 g AgCl/mole AgCl) = xx grams Cl.

    %Cl in the sample = (xx g Cl/1.64)*100 =
    I get something like 63% but you need to do it more exacting. Subtract from 100 to get percent Ca.
    Then take a 100 g sample and determine the formula. Post your work if you get stuck.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    An aqueous solution of silver nitrate contains 5.00 g of silver nitrate. To this solution is added sufficient barium chloride to precipitate all the silver as silver chloride. What mass, in grams, of dry silver chloride can be obtained?
  2. Chemistry

    An anhydrous metal chloride, MCln, (1.500 g) is dissolved in water and the solution reacts with silver nitrate, requiring 47.34cm^3 of 0.5000M solution, to precipitate all the chloride as silver chloride. Identify M.
  3. chemistry

    The traditional method of analyzing the amount of chloride ion present in a sample was to dissolve the sample in water and then slowly add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding a slight …
  4. chemistry

    the chlorine in a 0.12g sample of 95% pure magnesium chloride is to be precipitated as silver chloride, calculate the volume of 0.100m of silver nitrate solution required to precipitate the chloride and give a 100% excess.
  5. Chemistry

    A mixture contains only CuCl2 and FeCl3. A 0.7391 g sample of the mixture is completely dissolved in water and treated with silver nitrate. if 86.91 mL of 0.1463 M silver nitrate soultion is needed to precipitate all the chloride as …
  6. Chemisty 20

    A sample of water was known to contain chloride ions. To determine the concentration of chloride ions in the water sample, a student added a solution of silver nitrate to 500mL of the water. 1.26g of silver chloride percipitate formed. …
  7. Chemistry

    What mass of silver chloride, AgCl will precipitate from a solution that contains 1.50 g of, calcium chloride, CaCl if an excess amount of silver nitrate is present?
  8. Chemistry - Science

    A 6.70 g sample of a binary mixture of silver (I) nitrate and sodium nitrate is completely dissolved in water to make a solution. Aqueous barium chloride is then added to this solution in excess to form 3.60 g of silver chloride solid. …
  9. chemestry

    If an excess of silver nitrate is combined with 25.0 mL of calcium chloride and produces 2.90 g of precipitate, what is the molarity of calcium chloride that was used?
  10. Chemistry

    A method to determine the chloride ion content of water involves precipitate the chloride ion as silver chloride using silver nitrate. Assuming that all the chloride ions in solution can be precipitated using silver nitrate, explain …

More Similar Questions