What is the value of `pK_(b)(CH_(3)COO^(c-))` if `wedge^(@)._(m)=390 S cm^(-1) mol ^(-1)` and `wedge_(m)=7.8 S cm^(2) mol^(-1)` for `0.04 M` of `CH_(3)COOH` at `25^(@)C`?

Molar conductivity of aqueous solution of HA is 200 S cm^(2) "mol"^(-1) , pH of this solution is 4. Calculate the value of pK_(a) (HA) at 25^(@) C Given: wedge_(M)^(infty) (NaA) = 100 S cm^(2) mol^(-1), wedge_(M)^(infty)(HCl)= 425 Scm^(2) "mol"^(-1) , wedge_(M)^(infty)(NaCl) = 125 Scm^(2)"mol"^(-1) .

State True/False : Van't Hoff factor for 10^(-3) M CH_(3)COOH is 39//35 (wedge^(@)._(m)=350 S cm^(2) mol^(-1) and k=4xx10^(-5) S cm^(-1)).

A conductivity cell is used to measure the conductance of electrolyte . It makes use of conductivity of water which does not contain any ions. The cell constant of conductivity cell is determined. Calculate alpha of CH_(3)COOH if Delta^(oo)._(m) for HCl, NaCl, CH_(3)COOHNa are 426,126,91 S cm^(2) mol^(-1) , respectively, and wedge_(m)=14.4 S cm^(2) mol^(-1) at 0.015 M concentration.

A conductivity cell is used to measure the conductance of electrolyte . It makes use of conductivity of water which does not contain any ions. The cell constant of conductivity cell is determined. Calculate alpha of CH_(3)COOH if Delta^(oo)._(m) for HCl, NaCl, CH_(3)COOHNa are 426,126,91 S cm^(2) mol^(-1) , respectively, and wedge_(m)=14.4 S cm^(2) mol^(-1) at 0.015 M concentration.

Calculate degree of dissocation of 0.02 M acetic acid at 298K. Given that Lamda_(m) (CH_(3)COOH)= 17.37 S cm^(2) mol^(-1), lamda_(m)^(@) (H^(+)) = 345.8 S cm^(2) mol^(-1), lamda_(m)^(@) (CH_(3)COO^(-)) = 40.2S cm^(2) mol^(-1)

Which of the following statemetn is // are correct ? I . Van't Hoff factor for 10^(-3) M CH_(3)COOH is 39//35 (wedge^(@)._(m)=350 S cm^(2) mol^(-1) and k=4xx10^(-5) S cm^(-1)). II. If wedge^(@)._(m) of KCl, LiCl, and KNO_(3) are 150, 115, and 145 S cm^(2) mol^(-1), then that of LiNO_(3) will be 110 S cm^(2) mo^(-1). III. In general, with increase in concentration, the specific conductance increases and reaches a maximum and then decreases with further increase in concentration.

Calculate degree of dissociation of 0.02 M acetic acid at 298 K given that mho_(m)(CH_(3)COOH)=17.37 cm^(2) mol^(-1),lambda_(m)^(@)(H+)=345.8 S cm^(2) mol^(-1), lambda_(m)^(@)(CH_(3)COO^(-))=40.2 Scm^(2) mol^(-1)

Calculate degree of dissociation of 0.02 M acetic acid at 298 K given that mho_(m)(CH_(3)COOH)=17.37 cm^(2) mol^(-1),lambda_(m)^(@)(H+)=345.8 S cm^(2) mol^(-1), lambda_(m)^(@)(CH_(3)COO^(-))=40.2 Scm^(2) mol^(-1)

For a 0.01 M CH_(3)COOH solution, wedge_(m)=7.8 Omega^(-1)cm^(2) mol^(-1) if wedge_(m)^(@)=390Omega^(-1)cm^(2)mol^(-1) . What is the degree of the dissociation (alpha) of acetic acid ?