The concentration of a solution is 0.4M.What does it mean?

The concentration of a solution is 0.4 M . What does it mean ?

Calculate the concentration of NaOH solution in g/mL which has the same normality as that of a solution of HCI of concentration 0.0365 g/mL.

Transistor-what does it mean ?

_______concentration of a solution does not depend on temperature.

If 1 mol of an electrolyte is dissolved in V cm^(3) of a solution, then molar conductivity of the solution is Lambda_(m) = conductivity of the solution xx V. If the concentration of the solution is (M)/(10), then find the value of V.

The concentration of HCN and NaCN in a solution is 0.01 M each. Calculate the concentration of hydrogen and hydroxyl ions if dissociation constant of HCN is 7.2 xx 10^(-10)

The concentration of an aqueous solution of ammonia is 0.01(M). What is the pH of the solution? If 0.001 mol of NH_4Cl is added to 100 mL of that solution, state whether the pH of the solution will increase or decrease. Mention the change in the value of pH. [pK_b(NH_3)=4.74]

The concentration of an aqueous solution of the weak acid, HA is 0.1(M). Calculate the pH and concentrations of A^- ion and HA at equilibrium in the solution. Given: K_b(HA)=1.35xx10^(-3)

The concentration of sulphide ion in 0.1M HCl solution saturated with hydrogen sulphide is 1.0xx10^(-19)M . If 10 mL of this is added to 5 mL of 0.04 M solution of the following: FeSO_(4),MnCl_(2),ZnCl_(2) and CdCl_(2) in which of these solutions precipitation will take place?