Question

If an excess of ${AgNO}_3$ solution is added to $100mL$ of $0.024M$ solution of dichlorobis (ethylenediamine) cobalt (III) chloride, how many moles of $AgCl$ will be precipitated?

• A. $0.0012$
• B. $0.0016$
• C. $0.0024$
• D. $0.0048$

Answer 1

The correct option is C $0.0024$

$AgN{O}_3\left(aq\right)+\left[CoC{l}_2\right(en{)}_2\left]Cl\right(aq)⟶AgCl(s)+[CoC{l}_2\left(en{)}_2\right]N{O}_3\left(aq\right)$

Molarity= $\frac{Numberofmoles}{Volume}$

$\Rightarrow \frac{0.024}{10}$= Number of moles

$\Rightarrow 0.0024$= Number of moles