What is the mass of precipitate formed, when 50 mL of 16.9 % solution of AgNO3 is mixed with 50 mL of 5.87 % NaCl solution(Ag = 107.8, N = 14, O = l6, Na = 23, Cl = 35.5)

What is the mass of precipitate formed, when 50 mL of 16.9 % solution of AgNO3 is mixed with 50 mL of 5.87 % NaCl solution
(Ag = 107.8, N = 14, O = l6, Na = 23, Cl = 35.5)

  1. A

    28 g

  2. B

    3.5 g

  3. C

    7.18 g

  4. D

    14 g

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    Solution:

    Moles of AgNO3​= 50×16.9100×169.8​ = 0.05 moles

    Moles of NaCl = 50×5.8100×58.5 ​= 0.05 moles

    AgNO3 ​+ NaCl ⟶ AgCl + NaNO3

    Mass of AgCl precipitate= Mole × Molar mass

    = 0.05 × 143.5

    = 7.18 g

    Hence, 7.18 g AgCl will be precipitated out.

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