Identify the percipitate in the following reaction: Zn^2+ (aq) + 4 NH3 (aq) ⇄ Zn(NH3)^2+,4(aq) a....
Identify the percipitate in the following reaction: Zn^2+ (aq) + 4 NH3 (aq) ⇄ Zn(NH3)^2+,4(aq)
a. Zn^2+
b. NH3
c. H2O
d. Zn(NH3)^2+ 4
Homework Answers
answer is option d. [Zn(NH3)4]2+
explanation: zinc salt and aq. ammonia react to form tetramminezinc (II) complex as precipitate due to lesser solubility in water compare to starting material
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Identify the percipitate in the following reaction: Zn^2+ (aq) + 4 NH3 (aq) ⇄ Zn(NH3)^2+,4(aq) a....
Identify the Lewis acid and Lewis base in each reaction. 1) Zn2+(aq) + 4 NH3(l) ⇌...
Identify the Lewis acid and Lewis base in each reaction. 1) Zn2+(aq) + 4 NH3(l) ⇌ Zn(NH3)42+(aq) 2) H2O + SO3 ⇌ H2SO4 * In Reaction (1), Zn2+(aq) is the and NH3(l) is the . * In Reaction (2), H2O is the and SO3 is the .
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq)...
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq) a. K = [Zn**] + 2ỊNH,]+[Zn(NH, [Zn(NH,) d. K = [ZnJINH, [Znº1+ 2ỊNH,] [Zn(NH, e. K = [Zn(NH, 1-[Zn - 2(NH, J [Zn” JINH 1 c. K [Zn(NH, 1.
Which of the following reactions is a neutralization reaction? A. NH3(aq) NH2 - + H+...
Which of the following reactions is a neutralization reaction? A. NH3(aq) NH2 - + H+ B. NaCl(aq) + AgNO3(aq) NaNO3(aq) + AgCl(s) C. HCl(aq) + NaOH(aq) NaCl(aq) + H2O (l) D. H2SO4(aq) + Zn (s) H2(g) + ZnSO4(aq)
4) What element is undergoing oxidation (if any) in the following reaction? Zn(s) + 2 AgNO3(aq)...
4) What element is undergoing oxidation (if any) in the following reaction? Zn(s) + 2 AgNO3(aq) → Zn(NO3)2(aq) + 2 Ag(s) A) N B) Zn C) o D Ag E) This is not an oxidation-reduction reaction.
A galvanic cell has the overall reaction: Zn(s) + 2Eu(NO3)3(aq) → Zn(NO3)2(aq) + 2Eu(NO3)2(aq) Which is...
A galvanic cell has the overall reaction: Zn(s) + 2Eu(NO3)3(aq) → Zn(NO3)2(aq) + 2Eu(NO3)2(aq) Which is the half reaction occurring at the anode? (show steps) A) NO3-(aq) + 4H+(aq) + 3e- → NO(g) + 2H2O(l) B) NO2(g) + H2O(l) → NO3-(aq) + 2H+(aq) + e- C) Zn(s) → Zn2+(aq) + 2e- D) Eu3+(aq) + e- → Eu2+ E) Zn(s) + 2e-→ Zn2+(aq)-
The following redox reaction occurs in acidic solution: Zn(s) + VO3-(aq) ➔ Zn2+(aq) + V2+(aq) When...
The following redox reaction occurs in acidic solution: Zn(s) + VO3-(aq) ➔ Zn2+(aq) + V2+(aq) When this equation is balanced, the smallest whole-number coefficients are: Zn VO3- H2O A. 2,3,6 B. 1,1,1 C. 3,2,6 D. 1,2,3 E. 3.2.3
22. Zn + OH (a)(excess)- (aq) 23. Zn(OH)2 (s)+ H (aq) 24. Zn(a) K(a)Fe(CN) (aq) 25....
22. Zn + OH (a)(excess)- (aq) 23. Zn(OH)2 (s)+ H (aq) 24. Zn(a) K(a)Fe(CN) (aq) 25. Ni2 (aq) + NH3 (aq)+ H2O (until basic) - (I) Ni(OH)2 (s) + NH3 (aq) (excess) 26. 27. Ni2 (aq) + NH, (excess)- 28. Ni2 (aq)+ OH (aq) 29. Ni(OH)2 (s) + H (aq)
7. a) Identify the conjugate acid-base pairs in the following reaction: NH3(aq) + H O(l) +...
7. a) Identify the conjugate acid-base pairs in the following reaction: NH3(aq) + H O(l) + NHa*(aq) + OH (aq) b) The conjugate acid of HCO3 ? c) The conjugate base of H2PO4? d) Which of the following is not a conjugate acid-base pair? A) NH4+/NH3; B) H30*70H; C) H2SO3/HSO3; D) C2H3027HC2H302; E) All of the above are conjugate acid-base pairs.
Which equilibrium constant expression(s) are for the following reaction. NH3(aq)↔NH3(g) Choose from the list below and...
Which equilibrium constant expression(s) are for the following reaction. NH3(aq)↔NH3(g) Choose from the list below and enter the letters alphabetical order. (e.g. AH) A) (pNH3)eq F) (pNH3)eq2 B) [NH3]eq G) [NH3]eq-2 C) (pNH3)eq-1 H) (pNH3)eq-2 D) [NH3]eq-1 What is the equilibrium constant expression for the following reaction: Ru2+(aq) + 6NH3(aq)↔Ru(NH3)62+(aq) Choose from the list below and enter the letters alphabetical order. (e.g. For an equilibrium constant of [NH3]6eq[Ru2+]eq enter AH.) A) [Ru2+]eq E) [NH3]-1eq I) [Ru(NH3)62+]6eq B) [NH3]eq F) [Ru(NH3)62+]-1eq...
4. Which of the following statements about the voltaic cell shown below is correct? Zn(s)[Zn** (aq)||...
4. Which of the following statements about the voltaic cell shown below is correct? Zn(s)[Zn** (aq)|| Cu** (aq)|Cu(s) (a) The oxidation half-reaction is clearly Zn(s) ® Zn** (aq) + 2 e. (b) The oxidation half-reaction is clearly Zn() Zn" (aq) +le. (C) The oxidation half-reaction could not be anything other than Cu(s) ® Cu (aq) +2 e. (d) It is obvious that the oxidation half-reaction is Zn(s) ® Cu(s). 5. Which of the following statements about the voltaic cell shown...
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq) a. K = [Zn**] + 2ỊNH,]+[Zn(NH, [Zn(NH,) d. K = [ZnJINH, [Znº1+ 2ỊNH,] [Zn(NH, e. K = [Zn(NH, 1-[Zn - 2(NH, J [Zn” JINH 1 c. K [Zn(NH, 1.
4) What element is undergoing oxidation (if any) in the following reaction? Zn(s) + 2 AgNO3(aq) → Zn(NO3)2(aq) + 2 Ag(s) A) N B) Zn C) o D Ag E) This is not an oxidation-reduction reaction.
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7. a) Identify the conjugate acid-base pairs in the following reaction: NH3(aq) + H O(l) + NHa*(aq) + OH (aq) b) The conjugate acid of HCO3 ? c) The conjugate base of H2PO4? d) Which of the following is not a conjugate acid-base pair? A) NH4+/NH3; B) H30*70H; C) H2SO3/HSO3; D) C2H3027HC2H302; E) All of the above are conjugate acid-base pairs.
4. Which of the following statements about the voltaic cell shown below is correct? Zn(s)[Zn** (aq)|| Cu** (aq)|Cu(s) (a) The oxidation half-reaction is clearly Zn(s) ® Zn** (aq) + 2 e. (b) The oxidation half-reaction is clearly Zn() Zn" (aq) +le. (C) The oxidation half-reaction could not be anything other than Cu(s) ® Cu (aq) +2 e. (d) It is obvious that the oxidation half-reaction is Zn(s) ® Cu(s). 5. Which of the following statements about the voltaic cell shown...
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