`27^()C` তে `NH_(3)` গ্যাসের `1 mol` diabatic অবস্থায় প্রসারিত করা হয় যাতে ভলিউম `8` tim...

Which of the following combinations of solute would result in the formation of a buffer solution. a. CH_(3)COOH +NaOH in i. 1:1 mol ratio ii. 2:1 mol ratio iii. 1:2 mol ratio b. NH_(4)CI=NH_(3) in i. 1:1 mol ratio ii. 2:1 mol ratio iii. 1:2 mol ratio c. HCI +NaCI d. HCI +CH_(3)COOH e. NaH +HCI

1 mol of NH_(3) gas at 27^(@)C is expanded under adiabatic condition to make volume 8 times (gamma=1.33) . Final temperature and work done, respectively, are

Calculate the pH of a solution of given mixture. a. (2g CH_(3)COOH +3g CH_(3) COONa) in 100mL of mixture. b. 5mL of 0.1M NH_(4)OH + 250mL of 0.1 M NH_(4)C1 . c. (0.25 "mol of" CH_(3)COOH + 0.35 "mol of" CH_(3) COONa) in 500mL mixture. K_(a) "of" CH_(3)COOH = 1.8 xx 10^(-5) (pK_(a) = 4.7447) K_(b) "of" NH_(4)OH = 1.8 xx 10^(-5) (pK_(b) = 4.7447)

In solid ammonia, each NH_(3) molecule has six other NH_(3) molecules as nearest neighbours. DeltaH sublimation of NH_(3) at the melting point is 30.8 k J mol^(-1) , and the estimated DeltaH sublimation in the absence of hydrogen bonding is 14.4 kJ mol^(-1) . the strength of a hydrogen bond is NH_(3) is

A buffer solution is prepared in which the concentration of NH_(3) is 0.30 M and the concentration of NH_(4)^(+) is 0.20 M . If the equilibrium constant, K_(b) for NH_(3) equals 1.8xx10^(-5) , what is the pH of this solution? ( log 2.7=0.43 )

(a)In an experiment at 1000 K , the concentrations of different species are : [NH_3] = 0.105 mol dm^(-3), [N_2] =1.10 mol dm^(-3) and [H_2] =1.50 mol dm^(-3) Calculate the values of K_c and K_p for the reaction : N_2+3H_2 hArr 2NH_3 (b) What will be the K_c for the reaction : 2NH_3 hArr N_2+3H_2