Which of the following may act as buffer? (A) `NH_(4)Cl` +`NH_(4)OH]`
(B) `CH_(3)COOH`+`CH_(3)COONa` (C) 40ml of 0.1M`NH_(4)OH`+20ml" .of 0.1MHCl (D) All of these

How much of the following are strong electorlytes? a. NH_(3) b. NH_(4)CI c. CH_(3)COOH d. CH_(3)COONa e. HCI f. NaCI

Which of the following increasing order of pH of 0.1 M solution of the compound (A) HCOONH_4 (B) CH_3COONH_4 ( C ) CH_3COONa (D) NH_4CI is correct ?

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)

Find the number of aqueous solution which turn litmus paper blue. (a) NH_(4)OH (b) NaOH (c) NH_(4)CI (d) CH_(3)COONa (e) NaHSO_(4) (f) HCI

(i) State the formula and name the conjugate base of each of the following species : (a) H_(3)O^(+) (b) HSO_(4)^(-) (C ) NH_(4)^(+) (d) HF (e ) CH_(3)COOH (f) CH_(3)NH_(3)^(+) (g) H_(3)PO_(4)(h)H_(2)PO_(4)^(-). (ii) State the formula and name the conjugate acid of each of the following species : (a) OH^(-) (b) HPO_(4)^(2-) (C) H_(2)PO_(4)^(-) (d) CH_(3)NH_(2) (e) CO_(3)^(2-) (f) NH_(3)(g) CH_(3)COO^(-) (h) HS^(-)

What is the pH of solution obtained by mixing 100 mL of each 0.2 M NH_(4)Cl and 0.2M NH_(4)OH , if pK_(b) of NH_(4)OH is 4.2 ?

What is the pH of solution obtained by mixing 100 mL of each 0.2 M NH_(4)Cl and 0.2M NH_(4)OH , if pK_(b) of NH_(4)OH is 4.2 ?