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Sagot :
The mass of AgCl precipitated is 0.215g.
What do you mean by precipitation?
Precipitate is to form an insoluble compound either by reacting two salts or by changing the temperature to affect the solubility of the compound.
To calculate mass of AgCl precipitate -
The first step is to make a balanced chemical equation.
2AgNO3 + CaCl2 ---> 2AgCl + Ca(NO3)2
Molecular Weights:
CaCl2 = 110.98 g/mol
AgNO3 =170.01g/mol
AgCl= 143.45 g/mol
Volume:
CaCl2: 30.0mL=0.03L
AgNO3: 15.0mL=0.015 L
mole CaCl2 = 30/1000 x 0.2 =0.006
mole AgNO3 =15/1000 x 0.1 = 0.0015
CaCl2 is in excess so 0.0015 mole AgCl will form
0.0015 x 143.5 = 0.215g
The 0.215 mass in grams of AgCl will precipitate.
Learn more about precipitation ,here:
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