Silver Chromate Precipitation

2AgNO3 + K2CrO4 → Ag2CrO4↓ + 2KNO3

अवलोकन

Silver nitrate reacts with potassium chromate to form a brick-red precipitate of silver chromate (Ksp = 1.1 × 10⁻¹²). This reaction is the basis of the Mohr method for determining chloride concentration by titration with AgNO₃ using K₂CrO₄ indicator.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Silver Nitrate AgNO₃ 2 (aq)
उत्पाद Potassium Nitrate KNO₃ 2 (aq)

रोजमर्रा का उदाहरण

The Mohr titration is used to measure salt content in food, measuring chloride by adding silver nitrate until the red silver chromate endpoint appears.

औद्योगिक महत्व

The Mohr chloride titration is a standard method in water quality analysis, food science, and in the cement industry.

गुण

प्रकार
Precipitation
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-35.0 kJ/mol

संबंधित अभिक्रियाएँ

Aluminum Hydroxide Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Magnesium Hydroxide Precipitation Copper Sulfide Precipitation Cobalt(II) Hydroxide Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Silver Chromate Precipitation?
The balanced equation is: 2AgNO₃ + K₂CrO₄ → Ag₂CrO₄↓ + 2KNO₃.
What type of reaction is Silver Chromate Precipitation?
Silver Chromate Precipitation is a precipitation reaction.
Is Silver Chromate Precipitation exothermic or endothermic?
Silver Chromate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -35.0 kJ/mol.