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2. HSOA and PO43- The bases in the reaction below are: 5042- (aq) + HPO42- (aq)...
Calculate the pH of a solution consisting of 0.225 M solution of CH3NH2 (methylamine) and 0.200...
Calculate the pH of a solution consisting of 0.225 M solution of CH3NH2 (methylamine) and 0.200 M CH3NH2 tor (methylammonium chloride). Report answer to 2 decimal places. Kb CH3NH2) - 44 x 10-4 CH3NH2 (aq) + H200 + CH3NH3 (2) + OH(aq) Assuming equal initial concentrations of the given species, which of the following is the weakest acid in aqueous solution? O. HB Ky = 2.0 x 10-6 OB.HD K = 6.0 x 10-2 ОС: НЕ Kg = 4.0 x...
Which one of the following species is amphiprotic? Select one: PO43–(aq) HCl(g) HSO4–(aq) Cl–(aq) For the system NH2OH + CH3NH3+⇌ CH3NH2 + NH3OH+ 95% 95 % 5 % 5 % the state of equilibrium in the syste...
Which one of the following species is amphiprotic? Select one: PO43–(aq) HCl(g) HSO4–(aq) Cl–(aq) For the system NH2OH + CH3NH3+⇌ CH3NH2 + NH3OH+ 95% 95 % 5 % 5 % the state of equilibrium in the system is described by the percentages given. Which of the species is the strongest base in the system? Select one: NH2OH CH3NH3+ CH3NH2 NH3OH+ An aqueous solution at 25.0 oC has an H3O+ concentration of 4.0 × 10–2 mol L–1. What is the OH–...
please help Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq)...
please help
Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq) + H20 (1) + HCN (aq) + OH- (aq) ОА OB.F (aq) + H20 (1) + HF(aq) + OH-(aq) OC Zn(OH)6 (aq) + H2O(l) — [Zn(OH)5(OH2)]+ e- 2+ HCN(aq) + F(aq) + CN (aq) + HF(aq) E. Both A and B is for Kb Click Save and Submit to save and submit. Click Save All Answers to save all answers. QUESTION 12 of the...
Answer with explanation. ASAP please 02 DU 3. The reaction below gave the following data in...
Answer with explanation. ASAP please
02 DU 3. The reaction below gave the following data in an experiment that was NOT well-designed. OH- ClO-(aq) + (aq) ---> Cl(aq) +10-(aq) Initial concentrations Trial (CIO), M [1],M [OH-], M Initial Rate, M/s 2.0 x 10-3 2.0 x 10-3 1.00 2.42 x 10-4 3.0 x 10-3 2.0 x 10-3 1.00 3.60 x 10-4 4.0 x 10-3 4.0 x 10-3 1.00 9.40 x 10-4 2.0 x 10-3 2.0 x 10-3 0.50 4.75 x 10-4...
Explain the process of how to get the answer. The answer is highlighted. Ch. 18 Values...
Explain the process of how to get the answer. The
answer is highlighted.
Ch. 18 Values The following values will be useful for problems in this chapter. Acid Substance or Species HF HNO2 CH3COOH HOCI HOBr HOCN HCN H2SO4 KA = 7.2 x 10-4 Ka = 4.5 x 10-4 Ka = 1.8 x 10-5 Ka = 3.5 x 10-8 = 2.5 x 10-9 K4 = 3.5 x 10-4 Ka = 4.0 x 10-10 Kai = very large Kq2 = 1.2...
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, [Co(SCN)4]2-(aq). The initial concentrations...
The
reaction of cobalt(II) nitrate and potassium thiocyanate produces a
coloured complex, [Co(SCN)4]2-(aq). The initial concentrations of
the reactants after mixing (before any reaction) were 0.250 mol/L
Co(NO3)2(aq) and 0.500 mol/L KSCN (aq). After 20 minutes, the
absorbance of the solution was 0.825. The complex, [Co(SCN)4]2-, is
the only absorbing species (ε b = 9.29 (mol/L)-1). Determine the
concentration of Co2+ at equilibrium.
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, Co(SCN).J(aq). The initial concentrations of...
equilibrium help!! What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g)...
equilibrium help!!
What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g) + H2O(g) if at 20 °C the equilibrium molar concentrations are [CO] -0.613, [H2] = 1.839, (CH4) = 0.387, and [H20) - 0.387? Format Β Ι Ο The reaction for the formation of the diamine-silver ion is as follows: Ag (aq) + 2NH3(aq) + Ag(NH3)2(aq) a. Write the equilibrium constant expression for this reaction. for the above b. An experiment was carried out to...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq)...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq) + C,042 (aq) → 2 (aq) + 2 CO2(g) + HgCl(s) Expt. [HgCl2]0 [C:02) Initial rate/Ms? 0.100 0.20 0.100 0.40 3.1 x 105 1.2 x 104 6.2 x 10-5 0.050 0.40 Use the data to determine the rate law for the reaction. 2. At 500 °C, cyclopropane (C3H.) rearranges to propene (CH:CH-CH2): CH. (g) → CH,CH=CH2 (8) The reaction is first order and the...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq)...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq) C2O (aq)2 C (aq)+ 2 CO:(g)+ Hg Cl(s) (COP)0 Expt. HgClalo Initial rate/ 3.1 x 10 1 0.100 0.20 1.2x 10 0.100 0.40 6.2x 10S 0.050 0.40 Use the data to determine the rate law for the reaction. 2. At 500 °C, cyclopropane (CsH6) rearranges to propene (CH3CH-CH2): CH CH=CH2 (g) CaHs (g) The reaction is first order and the rate constant is 6.7...
Question 16 of 24 Determine the pH of a buffer that is 0.55 M HNO2 and...
Question 16 of 24 Determine the pH of a buffer that is 0.55 M HNO2 and 0.75 M KNO2. The value of Ka for HNO, is 6.8 x 10-4 1 2 3 NEXT Based on the given values, set up ICE table in order to determine the unknown. HNO3(aq) + H2O(1) H,O*(aq) + NO, (aq) Initial (M) Change (M) Equilibrium (M) RESET 2x 0 0.55 0.75 6.8.10 0.55. 2x 0.56 - 2x 0.75 + x 0.75 - X 0.55 -...
Calculate the pH of a solution consisting of 0.225 M solution of CH3NH2 (methylamine) and 0.200 M CH3NH2 tor (methylammonium chloride). Report answer to 2 decimal places. Kb CH3NH2) - 44 x 10-4 CH3NH2 (aq) + H200 + CH3NH3 (2) + OH(aq) Assuming equal initial concentrations of the given species, which of the following is the weakest acid in aqueous solution? O. HB Ky = 2.0 x 10-6 OB.HD K = 6.0 x 10-2 ОС: НЕ Kg = 4.0 x...
please help
Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq) + H20 (1) + HCN (aq) + OH- (aq) ОА OB.F (aq) + H20 (1) + HF(aq) + OH-(aq) OC Zn(OH)6 (aq) + H2O(l) — [Zn(OH)5(OH2)]+ e- 2+ HCN(aq) + F(aq) + CN (aq) + HF(aq) E. Both A and B is for Kb Click Save and Submit to save and submit. Click Save All Answers to save all answers. QUESTION 12 of the...
Answer with explanation. ASAP please
02 DU 3. The reaction below gave the following data in an experiment that was NOT well-designed. OH- ClO-(aq) + (aq) ---> Cl(aq) +10-(aq) Initial concentrations Trial (CIO), M [1],M [OH-], M Initial Rate, M/s 2.0 x 10-3 2.0 x 10-3 1.00 2.42 x 10-4 3.0 x 10-3 2.0 x 10-3 1.00 3.60 x 10-4 4.0 x 10-3 4.0 x 10-3 1.00 9.40 x 10-4 2.0 x 10-3 2.0 x 10-3 0.50 4.75 x 10-4...
Explain the process of how to get the answer. The
answer is highlighted.
Ch. 18 Values The following values will be useful for problems in this chapter. Acid Substance or Species HF HNO2 CH3COOH HOCI HOBr HOCN HCN H2SO4 KA = 7.2 x 10-4 Ka = 4.5 x 10-4 Ka = 1.8 x 10-5 Ka = 3.5 x 10-8 = 2.5 x 10-9 K4 = 3.5 x 10-4 Ka = 4.0 x 10-10 Kai = very large Kq2 = 1.2...
The
reaction of cobalt(II) nitrate and potassium thiocyanate produces a
coloured complex, [Co(SCN)4]2-(aq). The initial concentrations of
the reactants after mixing (before any reaction) were 0.250 mol/L
Co(NO3)2(aq) and 0.500 mol/L KSCN (aq). After 20 minutes, the
absorbance of the solution was 0.825. The complex, [Co(SCN)4]2-, is
the only absorbing species (ε b = 9.29 (mol/L)-1). Determine the
concentration of Co2+ at equilibrium.
The reaction of cobalt(II) nitrate and potassium thiocyanate produces a coloured complex, Co(SCN).J(aq). The initial concentrations of...
equilibrium help!!
What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g) + H2O(g) if at 20 °C the equilibrium molar concentrations are [CO] -0.613, [H2] = 1.839, (CH4) = 0.387, and [H20) - 0.387? Format Β Ι Ο The reaction for the formation of the diamine-silver ion is as follows: Ag (aq) + 2NH3(aq) + Ag(NH3)2(aq) a. Write the equilibrium constant expression for this reaction. for the above b. An experiment was carried out to...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq) + C,042 (aq) → 2 (aq) + 2 CO2(g) + HgCl(s) Expt. [HgCl2]0 [C:02) Initial rate/Ms? 0.100 0.20 0.100 0.40 3.1 x 105 1.2 x 104 6.2 x 10-5 0.050 0.40 Use the data to determine the rate law for the reaction. 2. At 500 °C, cyclopropane (C3H.) rearranges to propene (CH:CH-CH2): CH. (g) → CH,CH=CH2 (8) The reaction is first order and the...
1. Initial rate data at 25.0 °C are listed below for the reaction: 2 HgCl2 (aq) C2O (aq)2 C (aq)+ 2 CO:(g)+ Hg Cl(s) (COP)0 Expt. HgClalo Initial rate/ 3.1 x 10 1 0.100 0.20 1.2x 10 0.100 0.40 6.2x 10S 0.050 0.40 Use the data to determine the rate law for the reaction. 2. At 500 °C, cyclopropane (CsH6) rearranges to propene (CH3CH-CH2): CH CH=CH2 (g) CaHs (g) The reaction is first order and the rate constant is 6.7...
Question 16 of 24 Determine the pH of a buffer that is 0.55 M HNO2 and 0.75 M KNO2. The value of Ka for HNO, is 6.8 x 10-4 1 2 3 NEXT Based on the given values, set up ICE table in order to determine the unknown. HNO3(aq) + H2O(1) H,O*(aq) + NO, (aq) Initial (M) Change (M) Equilibrium (M) RESET 2x 0 0.55 0.75 6.8.10 0.55. 2x 0.56 - 2x 0.75 + x 0.75 - X 0.55 -...
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