Consider the acid base reaction below and choose the acid and conjugate base from the list. CH3NH2(aq) + H2O(e) = CH3NH3(aq) + OH(aq) A. ه acid conjugate base CH3NH2 CH3NH3 CH3NH2 OH- H20 H20 CH3NH3 None of the above. OH- د ن نیا
The compound CH3NH2 reacts with water to form CH3NH3+ and OH-. On this reaction CH3NH2 acs as a(n) ____. (a) acid (b) base (c) salt (d) catalyst (e) solvent
INH 4. Which of the following is not a conjugate acid/base pair? A) HCIO/CIO- B) H2SO4/HSO4 C) NH4+/NH3 E) all of these are conjugate acid base pairs D) H2O The poH of a 0,010 M aqueous solution of Ca(OH)2 is A) 11.70 B) 12.00 C) 12.30 D) 12.60E ) 1.70
answer is 3.70
What concentration ratio of acid to base, [CH3NH3*]/[CH3NH2], would be needed to make a buffer with a pH 10.00? Kb for CH3NH2 is 3.7x 104
The weak base methylamine, CH3NH2, has Kb= 4.2x10^-4. CH3NH2 + H2O -> CH3NH3+ + OH- Calculate the equilibrium hydroxide ion concentration in a 0.95 M solution of the base. [OH-] = What are the pH and pOH of the solution?
2. For each reaction, identify the Brønsted-Lowry acid, the Brønsted-Lowry base, the conjugate acid, and the conjugate base. a. H2CO3(aq) + H2O(1) ⇋ H3O+(aq) + HCO3(aq) -b. CO32-(aq) + H2O(1) ⇋HCO3(aq) - + OH(aq)- c. HNO3(aq) + H2O(1) → H3O(aq)+ + NO3(aq) - d. CH3NH2(aq) + H2O(1) ⇋ CH3NH3(aq) - + OH(aq)-
Identify the conjugate acid in the equation below. HCIO(aq) + H2O(1) CIO(aq) +H301+ (aq) Select one: O a. H301+ O b. HCIO O c. H20 O d. clol- Identify the conjugate base in the equation below. HCIO(aq) + H2O(1) # CIO?- (aq) +H307+ (aq) Select one: O a. CIO- O b. HCIO O c. H2O O d. H301+ What species is the acid in the equation below? S2-(aq) + NH4+ (aq) HST-(aq) + NH3(aq) Select one: O a. S2 0...
Identify the Bronsted-Lowry acid, base, conjugate acid and the conjugate base of the following: CO32- CH3NH3 CH3NH2 НСО: +
5. For the reaction given below: CH3NH2 + HSO4 = CH3NH3* + SO42- a) The acid on the reactant side: b) Its conjugate base (on the product side): 6. a) What is the conjugate base of NH3? b) What is the conjugate acid of HPO42- ?
5. For the reaction given below: CH3NH2 + HSO4 = CH3NH3+ + SO42- a) The acid on the reactant side: b) Its conjugate base (on the product side): 6. a) What is the conjugate base of NH3? b) What is the conjugate acid of HPO42-?