Solubility of `Fe(OH)_(3)` in 0.02M solution of NaOH will be `(K_(sp)` of `Fe(OH)_(3)`=`1times10^(-38))`
A) `1.25times10^(-27)M`
B) `1.25times10^(-25)M`
C) `1.25times10^(-30)M`
D) `1.25times10^(-33)M`

What is the solubility (in mol/L) of Fe(OH)_3 in a solution of pH= 8.0 ? [K_(sp)" for "Fe(OH)_3= 1.0 xx 10^(-36)]

The solubility of PbSO_(4) in 0.1M Na_(2)SO_(4) solution is ( K_(sp) of PbSO_(4) is 1.25 xx 10^(-9) )

6. ^(*) The current in a metal wire of cross-sectional area 10^(-6)m^(2) is 1.6A .If the free electron density of the metal is 8times x^(2) x 10^(28)m^(-3) then the drift speed of electrons is (A) 1.25times10^(-3)ms^(-1) (B) 2times10^(-3)ms^(-1) (C) 1.25times10^(-4)ms^(-1) (D) 2times10^(-4)ms^(-1)

What is the OH^(-) concentration of a 0.08 M solution of [K_(a)(CH_(3)COOH)=1.8 xx 10^(-5)]

What is pH of 0.02 M solution of ammonium chloride at 25^(@) C ? K_(b) (NH_(3)) = 1.8 xx 10^(-5) .

6. ^(*) The current in a metal wire of cross-sectional area 10^(-6)m^(2) is 1.6A .If the free electron density of the metal is 8times 10^(28)m^(-3) then the drift speed of electrons is (A) 1.25times10^(-3)ms^(-1) (B) 2times10^(-3)ms^(-1) (C) 1.25times10^(-4)ms^(-1) (D) 2times10^(-4)ms^(-1)

The solubility of AgCl in 0.1 M NaCl is ( K_(sp) of AgCl = 1.2 xx 10^(-10) )

Find the solubility of Ca(IO_(3))_(2) is molL^(-1) in a solution containing 0.1M CaC1 at 25^(@)C . K_(sp) of Ca(IO_(3))_(2) = 6.3 xx 10^(-7)