chemistry

in NaCl, Na+ does not hydrolize but in Cr(NO3)3, Cr3+ hydrolizes to give H+, so when do we know which cation hydrolizes and which doesnt

  1. 👍
  2. 👎
  3. 👁
  1. A cation that is the salt of a strong base does not hydrolyze; therefore, Na^+, Li^+, K^+, Cs^+, Ba^+2, etc do not. NH4^+ (from NH3, a weak conjugate base) will, amine salts will (C6H6NH3^+ is the salt of aniline). Hydrated salts, such as Al(H2O)6 (+3 charge on ion), Cr(H2O)6(+3 charge on ion), react with water (hydrolyze) to form H3O^+ and the corresponding Al(H2O)5(OH)^+2. The bottom line is that NH4^+ and the corresponding amine salts are about the only ones that hydrolyze except for the highly hydrated ions.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs? a. KCl(aq) + Pb(NO3)2 (aq) ¨ KNO3 (aq) + PbCl2 (s) b. KNO3 (aq)

  2. chemistry.

    What is the concentration (M) of a NaCL solution prepared by dissolving 9,3g of Nacl in sufficient water give 350ml of solution?.Any idea???

  3. Chemistry

    Calculate the mass/volume percent of a NaCl solution in which 182g of NaCl is dissolved in enough water to give a total volume of 4.78L . Would I do 182/4780ml *100?

  4. chemistry - exam practice help!!

    Given the table below predict the numerical value of the standard cell potential for the reaction: 2 Cr(s) + 3 Cu2+(aq) 2 Cr3+(aq) + 3 Cu(s) Half Reaction E (volts) (1) Cr3+ + 3 e- Cr E= -0.74 (2) Cr3+ + e- Cr2+ E=-0.41 (3)

  1. SCIENCE

    Balance the following redox reaction in acidic conditions Cr2O7 2- (aq) + HNO2 (aq) → Cr3+(aq) + NO3 - (aq)

  2. chemistry

    Fe2+(aq) + Cr2O7 2- (aq) →Fe3+(aq) + Cr3+(aq) Balance the equation by using oxidation and reduction half reactions. What is smallest possible integer coefficient of Cr3+ in the combined balanced equation?

  3. Chem

    Determine the number of moles of N atoms in 43.5 g of Mg(NO3)2. Textbook answer: 1.43 mol N My answer: 43.5 g Mg(NO3)x x (1 mol Mg(NO3)2/148.313 g Mg(NO3)2) x (2 mol N/1 mol Mg(NO3)2) = .293 Can tell me where i went wrong?

  4. Chemistry

    The balanced net ionic equation resulting from addition of aqueous hydrochloric acid to solid chromium(III) hydroxide is: A. Cr(OH)3 (s) + 3 HCl (aq) 3 H2O (l) + CrCl3 (aq) B. Cr(OH)3 (s) + 3 Cl- (aq) 3 OH- (l) + CrCl3 (aq) C.

  1. chem

    I just need to know the net ionic equation and balance them. I figured the equation. but the net and balance is harder. Co(NO3)2 (aq) + NaOH (aq) = CoOH (s) + Na(NO3)2 (aq) Co(NO3)2 (aq) + Na2CO3 (aq) = CoCO3 (s) + Na2(NO3)2 (aq)

  2. college chemistry

    Calculate the pH of the cathode compartment for the following reaction given Ecell = 3.01 V when [Cr3+] = 0.15 M, [Al3+] = 0.30 M, and [Cr2O72-] = 0.55 M. 2 Al(s) + Cr2O72-(aq) + 14 H+(aq) → 2 Al3+(aq) + 2 Cr3+(aq) + 7 H2O(l)

  3. chem

    For the reaction below, the equilibrium constant is Kc = 3.2×10−10 at 25 °C. Pb(s) + 2 Cr3+(aq) ⇌ Pb2+(aq) + 2 Cr2+(aq) Excess Pb(s) is added to a solution for which the initial concentration of Cr3+(aq) is 1.0 mol L−1.

  4. Science

    Al+(Cr2O7)2- = Al3+ + Cr3+ [al3+]=0.01M [(cr2o7)2-]= 0.1M [cr3+]=0.001M find the E cell if we add Naoh to each electrode until al(oh)3 precipitates pH=8 KPT of al(oh)3=5 * 10 -33 Eal=-1.66 V Ecr=1.33V

You can view more similar questions or ask a new question.