Verified Solution • 2025–26 Session moderate

QJEEM20Ch1b7d: JEE Main 2020 Chemistry - Class 11 JEEM20Ch1b7d Solution: The volume (in mL) of 0.125 M AgNO 3 required to quantitatively …

The volume (in mL) of 0.125 M AgNO3 required to quantitatively precipitate chloride ions in 0.3 g of [Co(NH3)6]Cl3 is ________.
M[Co(NH3)6Cl3] = 267.46 g/mol
MAgNO3 = 169.87 g/mol

Step-by-Step Verified Solution

[Co(NH3)6]Cl3 + 3AgNO3 →\to 3AgCl

Mole of [Co(NH3)6]Cl3
1
 =
Mole of AgNO3
3

⇒\Rightarrow 0.3267.46=0.125×v×10−33{{0.3} \over {267.46}} = {{0.125 \times v \times {{10}^{ - 3}}} \over 3}

⇒\Rightarrow v = 26.92 ml

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