To obtain a precipitate which is useful for gravimetric analysis, the analyst tr

Question

To obtain a precipitate which is useful for gravimetric analysis, the analyst tried to obtin conditions to encourage crystal growth as opposed to the formation of a colloid. Which of hte following statements aids in the formation of a crystalline precipitate?

Question 1 options:

a)The solutions are mixed rapidly to allow the appropriate ions to make contact without interference of other materials.

b)The solution is kept cool to slow down the movement of ions to allow crystals to form.

c) None of the above.

d) The solutions are made dilute as practical to allow crystals to form slowly.

a)The solutions are mixed rapidly to allow the appropriate ions to make contact without interference of other materials.

b)The solution is kept cool to slow down the movement of ions to allow crystals to form.

c) None of the above.

d) The solutions are made dilute as practical to allow crystals to form slowly.

Explanation / Answer

Answer is (b)

(a) and (d) will cause more dissolution of solid.

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