A test for complete romovel of Cu^(2+) ions form a solution of Cu_((aq.))^(2+) is to add NH_(3(aq.)). A buke colour signifies the fomaltionn of complex [Cu(NH_(3))_(4)]^(2+) having K_(f) = 1.1 xx 10^(13) and thus confirms the presence of Cu^(2+) in solution. 250 mL of 0.1 M CuSO_(4(aq.)) is electrolysed by passing a current of 3.512 ampere for 1368 second. After passage of this passage of this charge sufficient quantity of NH_(3(aq.)) is added to electrolysed solution maintaining [NH_(3)] = 0.10 M. If [Cu(NH_(3))_(4)]^(2+) is detectable up to its concentration as low as 1 xx 10^(-5), would a blue colour be shown by the electrolysed solution on addition of NH_(3).

A test for complete romovel of Cu^(2+) ions form a solution of Cu_((aq

1.	A test for complete romovel of Cu^(2+) ions form a solution of Cu_((aq.))^(2+) is to add NH_(3(aq.)). A buke colour signifies the fomaltionn of complex [Cu(NH_(3))_(4)]^(2+) having K_(f) = 1.1 xx 10^(13) and thus confirms the presence of Cu^(2+) in solution. 250 mL of 0.1 M CuSO_(4(aq.)) is electrolysed by passing a current of 3.512 ampere for 1368 second. After passage of this passage of this charge sufficient quantity of NH_(3(aq.)) is added to electrolysed solution maintaining [NH_(3)] = 0.10 M. If [Cu(NH_(3))_(4)]^(2+) is detectable up to its concentration as low as 1 xx 10^(-5), would a blue colour be shown by the electrolysed solution on addition of NH_(3).
Answer» ANSWER :SHOW BLUE COLOUR