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Percentage Composition

Silver nitrat...

Question

Silver nitrate is gradually added to an aqueous solution containing 0.01 M each of chloride , bromide and iodide ions. The decreasing order in which the halides will be precipitated is?

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Q. 4.0 g of a mixture of NaCl and an unknown metal iodide

M I_{2}

was dissolved in a water to form its aqueous solution. To this aqueous solution, The aqueous solution

A g N O_{3}

was added gradually so that silver halides are precipitated. The precipitates were weighed at regular interval and the given curve for the mass of precipitate versus volume of

A g N O_{3}

added was obtained. With the knowledge of the fact that halides are precipitated successively i.e., when one halide is precipitating , the other halide remains in the solution, answer the following questions:
(Molar mass of Ag = 108, I = 127, Na = 23).
Points p and Q are: P(20, 4.8), Q(37, 7.25),
What is the approximate molarity of

A g N O_{3}

Q. 4.0 g of a mixture of

N a C l

and an unknown metal iodide

M I_{2}

was dissolved in a water to form its aqueous solution. To this aqueous solution, The aqueous solution

A g N O_{3}

was added gradually so that silver halides are precipitated. The precipitates were weighed at regular interval and the given curve for the mass of precipitate versus volume of

A g N O_{3}

added was obtained. With the knowledge of the fact that halides are precipitated successively i.e. when one halide is precipitating , the other halide remains in the solution, answer the following questions:
(Molar mass of

A g = 108, I = 127, N a = 23

P

Q

P (20, 4.8), Q (37, 7.25)

What is the approximate mass percentage of

M I_{2}

?

Q. Assertion: Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate AgBr rather than AgCl.
Reason: Ksp of AgCl < Ksp of AgBr.

Q. The number of chloride ions which would be precipitated, when

C r C l_{3} .4 N H_{3}

is treated with silver nitrate solution:

Q. Assertion :The addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution, will first precipitate

A g B r

A g C l

. Reason: The value of

K_{s p}

A g C l < K_{s p}

A g B r

.

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