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Recent questions tagged chemical-equilibrium

What is the best description of the change that occurs when $Na_2O(s)$ is dissolved in water?

asked Nov 1, 2018 by meena.p

1 answer

The equilibrium constant for the reaction $2SO_2(g)+O_2(g) \to 2SO_3(g)$ would be :

asked Nov 1, 2018 by meena.p

1 answer

Equal amounts of reactants are poured into a suitable container. Given sufficient time, the reactants may be converted almost entirely to products if:

asked Oct 31, 2018 by meena.p

1 answer

When pressure is applied to the given equilibrium ice water which of the following will happen

asked Oct 31, 2018 by meena.p

1 answer

The solution having zero PH will be

asked Oct 31, 2018 by meena.p

1 answer

Equilibrium solution of the following were prepared in water separately . Which one of the solutions will record the highest $P^{H}$?

asked Oct 30, 2018 by meena.p

1 answer

$P^{H}$ of a soda water bottle is :

asked Oct 29, 2018 by meena.p

1 answer

Equal volumes of three basic solutions of 11,12 and 13 are mixed in a vesel. What will be the concentration in the mixture ?

asked Oct 29, 2018 by meena.p

1 answer

Equal volumes of three basic solutions of 11,12 and 13 are mixed in a vesel. What will be the concentration in the mixture ?

asked Oct 29, 2018 by meena.p

0 answers

Which one of the following has the lowest $P^H$ value ?

asked Oct 29, 2018 by meena.p

1 answer

$PH$ of a solution containing 50 mg of sodium hydroxide in $10\;dm^3$ of the solution is

asked Oct 26, 2018 by meena.p

1 answer

$K_{sp}$ of $AglO_3$ is $1 \times 10^{4}$ at a given temperature what is the mass of $AglO_3$ in 100 ml of its saturated solution ?

asked Oct 26, 2018 by meena.p

1 answer

The aqueous solution of $HCOONa,C_6H_5NH_3Cl$and $KCN$ are respectively

asked Oct 26, 2018 by meena.p

1 answer

Equilibrium solution of the following were prepared in water separately . Which one of the solutions will record the highest $P^{H}$?

asked Oct 26, 2018 by meena.p

1 answer

Number of $H^{+ ions}$ present in 500 ml of lemon juice of $P^{H}=3$ is

asked Oct 26, 2018 by meena.p

1 answer

The dissociation constant of a substituted benzoic acid at $25C$ is $1.0 \times 10^{-4}$. The $p^{H}$ of $0.01\;M$ solution its sodium salt is

asked Oct 26, 2018 by meena.p

1 answer

The ionization constant of $NH_4OH$ is $1.77 \times 10^{-5}$ at $298\;K$ . Hydrolysis constant of it is

asked Oct 26, 2018 by meena.p

1 answer

Which of the following ionic species has the greatest protons affinity to form stable compound?

asked Nov 27, 2013 by mosymeow_1

2 answers

$H_3BO_3$ is

asked Nov 27, 2013 by mosymeow_1

2 answers

The $pH$ value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The $pK_a$ value of aspirin is 3.5. Aspirin will be

asked Nov 27, 2013 by mosymeow_1

1 answer

$pH$ of a mixture of 1 M benzoic acid ($pK_a$ = 4.20) and 1 M solution benzoate is 4.5. In 300 mL of buffer solution, volume of benzoic acid solution is

asked Nov 27, 2013 by mosymeow_1

1 answer

$pH$ of the solution containing 50.0 mL of 0.3 M HCl and 50.0 mL of 0.4 M $NH_3$ is

asked Nov 27, 2013 by mosymeow_1

1 answer

$pK_{a1}$ and $pK_{a2}$ of $H_2CO_3$ are 6.38 and 10.26 respectively. The $pH$ of 1 M and 0.1 M $NaHCO_3$ are

asked Nov 27, 2013 by mosymeow_1

1 answer

The hydronium ion concentration in pure water is $1 \times 10^{-7}$ mol$L^{-1}$. The degree of dissociation of water is

asked Nov 27, 2013 by mosymeow_1

1 answer

To 10 mL of aqueous solution some strong acid having $pH$ = 2 is mixed with $pH$ = 4.0. The $pH$ of resulting solution is

asked Nov 27, 2013 by mosymeow_1

1 answer

The dissociation constant of certain weak acid HA is $1 \times 10^{-4}$. The equilibrium constant for its reaction with strong base BOH is

asked Nov 27, 2013 by mosymeow_1

1 answer

The $pH$ of 0.1 M solution of $NH_4OH$ (having dissociation constant $K_b = 1.0 \times 10^{-5})$ is equal to

asked Nov 27, 2013 by mosymeow_1

1 answer

A solution was prepared by dissolving 0.0005 mol of $Ba(OH)_2$ in 100 mL of the solution. If the base is assumed to ionise completely, the $pOH$ of the solution will be

asked Nov 27, 2013 by mosymeow_1

1 answer

The value of $K^{sp}$ of $HgCl_2$ at room temperature is $4 \times 10^{-15}$. The concentration of $Cl^-$ ion in its aqueous solution at saturation point is

asked Nov 27, 2013 by mosymeow_1

1 answer

The dissociation constants of two acids $HA_1$ and $HA_2$ are $3.0 \times 10^{-4}$ and $1.8 \times 10^{-5}$ respectively. The relative strengths of the acids will be

asked Nov 27, 2013 by mosymeow_1

1 answer

The $pH$ of a dilute solution of acetic acid was found to be 4.3. The addition of a small crystal of sodium acetate will cause $pH$ to

asked Nov 27, 2013 by mosymeow_1

1 answer

Degree of dissociation of an acid HCl is 95%. 0.192 g of the acid is present in 0.5 L of solution. The pH of the solution is

asked Nov 23, 2013 by mosymeow_1

1 answer

The pH of pure water at $80^\circ C$ will be

asked Nov 23, 2013 by mosymeow_1

2 answers

If the solubility of $Ag_2CrO_4$ is S mole/litre. Its solubility product is

asked Nov 23, 2013 by mosymeow_1

2 answers

$NH_4OH$ is a weak base but it becomes still weaker in the aqueous solution of

asked Nov 23, 2013 by mosymeow_1

1 answer

Conjugate base of Hydrazoic acid is

asked Nov 23, 2013 by mosymeow_1

2 answers

Which of the following can act both as a Bronsted acid and a Bronsted base?

asked Nov 23, 2013 by mosymeow_1

2 answers

According to the Lewis acid-base concept

asked Nov 23, 2013 by mosymeow_1

1 answer

Which one of the following is a Bronsted acid but not a Bronsted base?

asked Nov 23, 2013 by mosymeow_1

1 answer

What are the units of Equilibrium equations $K_p$ and $K_c$ when $\Delta n_g < 0$ respectively ?

asked Nov 15, 2013 by mosymeow_1

1 answer

Specify the unit of Equlibrium Constant of the following reaction. $ Fe^{3+} (aq) + SCN^- (aq) \rightleftharpoons Fe(SCN)^{2+} (aq) $

asked Nov 13, 2013 by mosymeow_1

1 answer

At the boiling point of a liquid its ________ becomes equal to the atmospheric pressure.

asked Nov 13, 2013 by mosymeow_1

1 answer

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