Equilibrium questions
1777 published questions with worked solutions.
- 2.5 mL of 2 5 M weak monoacidic base (K_b = 1 10^ -12 at 25 °C) is titrated with 2 15 M HCl in water at 25 °C. The concentration...
- How many litres of water must be added to 1 litre of an aqueous solution of HCl with a pH of 1 to create an aqueous solution with...
- The first and second ionization constants of H_2X are 2.5 10^ -8 and 1.0 10^ -13 respectively. The concentration of X^ 2- in 0.1M...
- A first row transition metal (M) does not liberate H_2 gas from dilute HCl. 1 mol of aqueous solution of MSO_4 is treated with...
- Dissociation of a gas A_2 takes place according to the following chemical reaction. At equilibrium, the total pressure is 1 bar...
- Which of the following mixture gives a buffer solution with pH=9.25? Given : pK_b(NH_4OH)=4.75
- Consider the general reaction given below at 400 K xA(g) yB(g) The values of K_p and K_c are studied under the same condition of...
- For the following gas phase equilibrium reaction at constant temperature, NH_3(g) 1 2 N_2(g)+ 3 2 H_2(g) If the total pressure is...
- X_2(g) + Y_2(g) 2Z(g) X_2(g) and Y_2(g) are added to a 1 L flask and it is found that the system attains the above equilibrium at...
- Consider two Group IV metal ions X^ 2+ and Y^ 2+ . A solution containing 0.01 M X^ 2+ and 0.01 M Y^ 2+ is saturated with H_2S....
- Consider the following gaseous equilibrium in a closed container of volume "V" at T(K). P_2(g)+Q_2(g) 2PQ(g) 2 moles each of...
- Consider a weak base 'B' of pK_b = 5.699. 'x' mL of 0.02 M HCl and 'y' mL of 0.02 M weak base 'B' are mixed to make 100 mL of a...
- Consider the dissociation equilibrium of the following weak acid HA H^+(aq) + A^-(aq). If the pKa of the acid is 4, then the pH...
- Observe the following equilibrium in a 1 L flask. A(g) B(g) At T(K), the equilibrium concentrations of A and B are 0.5 M and...
- The plot of _ 10 K vs 1 T gives a straight line. The intercept and slope respectively are (where K is equilibrium constant).
- A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of CO2 is converted into CO on addition of graphite. If total...
- The molar solubility(s) of zirconium phosphate with molecular formula (Zr^ 4+ )_3(PO_4^ 3- )_4 is given by relation
- Consider the reaction X_2Y(g) X_2(g) + 1 2 Y_2(g) The equation representing correct relationship between the degree of...
- pH of water is 7 at 25°C. If water is heated to 80°C, it's pH will :
- Which of the following happens when NH4OH is added gradually to the solution containing 1M A²⁺ and 1M B³⁺ ions ? Given : K_ sp...
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