Milimoles of calcium hydroxide required to produce `mL` of the aqueous solution of `pH 12` is `x times10^(-1)`,the value of `x` is ________ (Nearest integer).
Assume complete dissociation.

At 25^(@) , in pure water (or) in neutral aqueous solutions, [H^+] = 1 times 10^(-x) mole/Lt. The value of x is

The pH of a solution obtained by mixing 50 mL of 1 M HCl and 30 mL of 1M NaOH is x xx 10^(-4) . The value of x is ________. (Nearest inetger) [log 2.5 = 0.3979]

When 10 mL of an aqueous solution of Fe^(2+) ions was titrated in the presence of dil H_(2) SO_(4) using diphenylamine indicator, 15 mL of 0.02 M solution of K_(2) Cr_(2) O_(7) was required to get the end point. The molarity of the solution containing Fe^(2+) ions is x xx 10^(-2) The value of x is _______ (Nearest integer)

How many moles of Ca(OH)_(2) must be dissolved to produce 250 mL of an aqueous solution of pH 10.65 , assuming completer dissociation ?

The number of atoms in 8 g of sodium is x xx 10^23 . The value of x is ____________. (Nearest integer ) [Given : N_A = 6.02 xx 10^23 mol^(-1) Atomic mass of Na = 23.0 u]

The number of atoms in 8 g of sodium is x xx 10^23 . The value of x is ____________. (Nearest integer ) [Given : N_A = 6.02 xx 10^23 mol^(-1) Atomic mass of Na = 23.0 u]

4.5 g of compound.A (MW=90) was used to make 250 mL of its aqueous solution. The molarity of the solution in Mis "x"xx10^(-1) . The value of x is (Rounded off to the nearest integer)

To neutralize completely 20 mL of 0.1 M aqueous solution of phosphorus acid, the volume of 0.1 M aqueous NaOH solution required is

If the dissociation constant of 5 xx 10^(-4) M aqueous solution of diethylamine is 2.5 xx 10^(-5) , its pH value is