Home
Class 11
CHEMISTRY
Bi^(3+) in qualitative analysis is detec...

`Bi^(3+)` in qualitative analysis is detected by the appearance of precipitate BiO(OH). K value for the reaction `BiO(OH)_((s)) hArr BiO_((aq))^(-) +OH_((aq))` is `4 xx 10^(-10)`. Calculate the pH.

Text Solution

Verified by Experts

`9.3`
Promotional Banner

Similar Questions

Explore conceptually related problems

For the reaction 2H_(2)O_((l)) rarr H_(3)O_((aq))^(+) + OH_((aq))^(-) , the value of Delta H is

Calculate the pH of 0.001 M aqueous solution of ZnCl_2, K_a for the equilibrium, Zn^(2+) +H_(2) O hArr Zn (OH)^(+) +H^(+) is 1 xx 10^(-9)

Gold dissolves in cyanide solution the presence of air to form [Au(CN)_(3)] which is stable in a cons solution. Au_((s))+CN_((s))^(-)+O_(2)+H_(2)O_(2) hArr [Au(CN)_(2)]_((aq))^(-)+OH_((aq))^(-) Aquaregia a 3 : 1 mixture of conc. HC and HNO_(3) was developed by the alchemists as a means to dissolve gold. The process is actually a Redox reaction. Au_((s))+NO_(3(aq))+Cl^(-) hArr AuCl_(4(aq))^(-)+NO_(2(g)) Gold is too noble to react with HNO_(3) However gold does react with a waregia becuase the complex AuCl_(4)^(-) forms Au_((aq))^(+3)+3e^(-) to Au_((s)) E^(theta)=15V to I AuCl_(4(aq))^(-)+3e^(-) to Au_((s))+4Cl_((q))^(-)E^(0)=1V to 2 Calculate the formation constant approximately, of Auct at 25^(@)C

Write expression for the equilibrium constant, Ke for each of the following reactions. Fe_((aq))^(+3)++3OH_((aq))^(-) hArr Fe(OH)_(3(s))

The coefficient of PH, in the following balanced equation will be: P_(4(s)) +OH^(-) rarr PH_(3_((g))) + HPO_(2(aq))^(-)

The equilibrium constant for the ionisation of RNH_(2(g)) in water as RNH_(2(g)) + H_(2)O_((l)) hArr "RNH"_(3(aq))^(+) + OH_((aq))^(-) is 8 xx 10^(-6) at 25^(@) C . Find the pH of a solution at equilibrium when pressure of RNH_(2(g)) is 0.5 bar.

The equilibrium constant of the reaction Cu_((s)) + 2Ag_((aq))^(+) iff Cu_((aq))^(+2) + 2Ag_((s)) , " is " x xx 10^(15) , 'x' is ( E^(@) = 0.46 V at 298 K )