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Question 1 (1 point) The reaction of metal ions with dilute NaOH (Itd.OH") produces the same...
answer questions 2 & 3 2. Since dilute NaOH (ltd. OH") and dilute aqueous NHg produce...
answer questions 2 & 3
2. Since dilute NaOH (ltd. OH") and dilute aqueous NHg produce similar results, why do the results differ between excess NaOH (xs. OH) and concentrated aqueous NH? 3. Identify the following ions based upon their observed reactions. The original color of the un-reacted solutions was not recoraeu. Unknown A Unknown B Unknown C Anion so 2 no reaction no reaction no reaction 92. black ppt. black ppt. black ppt. no reaction 12 produced 12 procuced...
2. Complete and balance the following net ionic equations. If no reaction occurs, write NR. Tables...
2. Complete and balance the following net ionic equations. If no reaction occurs, write NR. Tables 4 and 5 of Experiment 7 list amphoteric metal hydroxides that form complex ions in the presence of excess hydroxide ions and aqueous ammonia. a. Mg(OH)2 + OH excess b. Cu(OH)2 + OH"excess c. Co(OH)2 + OH → d. Fe(OH)3 + NH3(aq) excess → e. Pb(OH)2 + NH3(aq) excess →
1IC LUDOUCO 1. Complete and balance the following net ionic equations. If no reaction occurs, write...
1IC LUDOUCO 1. Complete and balance the following net ionic equations. If no reaction occurs, write NR. a. Mg?+ + OH (imited -- b. Cu²+ + SCN" - c. Co2+ + NH3(aq) limited + H20 - d. Ba2+ + so; - e. Pb2+ + NH3(aq) excess + H20 – f. Fel+ + SO-- 2. Complete and balance the following net ionic equations. If no reaction occurs, write NR. Tables 4 and 5 of Experiment 7 list amphoteric metal hydroxides that...
28. CN, NH3, and some other compounds and ions will bind to transition metal ions and...
28. CN, NH3, and some other compounds and ions will bind to transition metal ions and make them more soluble. The cyanide is acting like a: a. Bronsted acid b. Bronsted base c. Lewis acid d. Lewis base 29. Which solution, formed by mixing, would maintain a fairly constant pH even when additional small amounts of a strong acid or a strong base are added? 100 mL of 1 M HCl and 100 mL of 1 M NaOH b. 100...
The aqueous solutions of the transition metal salts are acidic as a result of hydrolysis of...
The aqueous solutions of the transition metal salts are acidic as a result of hydrolysis of their hydrated cations. The H2O in these hydrated cations can form different colors in the solution of colmplex ions by entering ligand exchange reaction with different ligands like CI, NH3 SO Cu2+ Fe2+ Cr3+ Ni2+ Co2+ Mn2+ Al3+ V3+ Sc3+ salts are separately a)Write down water-solubility / hydration reactions. b)Write down the hydrolysis reactions and explain the reason for the acidity according to the...
In step1, aqueous ammonia is added to a solution of the three ions. The equilibrium for...
In step1, aqueous ammonia is added to a solution of the three ions. The equilibrium for the ammonia is EQ1: NH3(aq + H2O(l) ßà NH4+(aq) Kb=1.8x10-5 The bismuth(III) ion is precipitated out of the solution as Bi(OH)3. The equilibrium involved is related to the one provided below: EQ2: Bi(OH)3(s) ßà Bi3+(aq) +3OH(aq)- Ksp =3.2x10-40 Manipulate EQ 1 and 2 to solve for the net equation, EQ3: EQ3 (net): 3H2O+ Bi3+(aq) +3NH3(aq) ßàBi(OH)-(s) +3NH4+(aq) Write the mass law expression for the...
LAB DESCRIPTION: In aqueous solutions the Ni2+ cation forms a complex ion with 6 H2O ligands....
LAB DESCRIPTION: In aqueous solutions the Ni2+ cation forms a complex ion with 6 H2O ligands. The formula of this complex ion is: Ni(H2O)62+. When this complex ion is mixed with aqueous NH3 a reaction occurs where some of the H2O ligands are displaced with NH3 ligands. But how many of the H2O are displaced by NH3? In this experiment you will mix nickel(II) sulfate and aqueous ammonia to synthesize a compound containing a complex ion whose formula is Ni(H2O)6-x(NH3)x2+,...
FesCN (aq), and LeChâtelier's Explain in terms of the equation, Fe" (aq) + SCN (aq) Principle...
FesCN (aq), and LeChâtelier's Explain in terms of the equation, Fe" (aq) + SCN (aq) Principle (4 ) Observation after adding KSCN: turned darker more red like original solution brown Explain in terms of the equation, Fe (aq) + SCN (aq) + FeSCN- (aq), and LeChâtelier's Principle. (ps.) Observation after adding AgNO3: Turned milky white + thieverf less transparent Using the ions present in the solution, write a net ionic equation that would explain the precipitate observed Use the above...
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a...
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a 0.1 M solution of H3PO4 turn blue litmus paper? b. (2 points) What color will a 0.1 M solution of H3PO4 turn red litmus paper? c. (2 points) What color will phenolphthalein be in a 0.1 M solution of H,POA? d. (5 points) Write an equation for the reaction that takes place when phosphoric acid is added to water e. (4 points) What is...
prelab /postlab all questions please Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq)...
prelab /postlab all questions please
Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq) NH4(aq), the equilibrium constant is calculated to be K = to 4.5 x10%. CHAT] A. Write the Equilibrium expression for this reaction. Keq = ỞNH TH] B. From the size of the number for Keq, does the equilibrium lie to the left or to the right? Right 2. If the reaction between iron(III) ion and thiocyanate ion, Fe3+ (aq) + SCN (aq) → FeSCN2+(aq),...
answer questions 2 & 3
2. Since dilute NaOH (ltd. OH") and dilute aqueous NHg produce similar results, why do the results differ between excess NaOH (xs. OH) and concentrated aqueous NH? 3. Identify the following ions based upon their observed reactions. The original color of the un-reacted solutions was not recoraeu. Unknown A Unknown B Unknown C Anion so 2 no reaction no reaction no reaction 92. black ppt. black ppt. black ppt. no reaction 12 produced 12 procuced...
2. Complete and balance the following net ionic equations. If no reaction occurs, write NR. Tables 4 and 5 of Experiment 7 list amphoteric metal hydroxides that form complex ions in the presence of excess hydroxide ions and aqueous ammonia. a. Mg(OH)2 + OH excess b. Cu(OH)2 + OH"excess c. Co(OH)2 + OH → d. Fe(OH)3 + NH3(aq) excess → e. Pb(OH)2 + NH3(aq) excess →
1IC LUDOUCO 1. Complete and balance the following net ionic equations. If no reaction occurs, write NR. a. Mg?+ + OH (imited -- b. Cu²+ + SCN" - c. Co2+ + NH3(aq) limited + H20 - d. Ba2+ + so; - e. Pb2+ + NH3(aq) excess + H20 – f. Fel+ + SO-- 2. Complete and balance the following net ionic equations. If no reaction occurs, write NR. Tables 4 and 5 of Experiment 7 list amphoteric metal hydroxides that...
28. CN, NH3, and some other compounds and ions will bind to transition metal ions and make them more soluble. The cyanide is acting like a: a. Bronsted acid b. Bronsted base c. Lewis acid d. Lewis base 29. Which solution, formed by mixing, would maintain a fairly constant pH even when additional small amounts of a strong acid or a strong base are added? 100 mL of 1 M HCl and 100 mL of 1 M NaOH b. 100...
The aqueous solutions of the transition metal salts are acidic as a result of hydrolysis of their hydrated cations. The H2O in these hydrated cations can form different colors in the solution of colmplex ions by entering ligand exchange reaction with different ligands like CI, NH3 SO Cu2+ Fe2+ Cr3+ Ni2+ Co2+ Mn2+ Al3+ V3+ Sc3+ salts are separately a)Write down water-solubility / hydration reactions. b)Write down the hydrolysis reactions and explain the reason for the acidity according to the...
FesCN (aq), and LeChâtelier's Explain in terms of the equation, Fe" (aq) + SCN (aq) Principle (4 ) Observation after adding KSCN: turned darker more red like original solution brown Explain in terms of the equation, Fe (aq) + SCN (aq) + FeSCN- (aq), and LeChâtelier's Principle. (ps.) Observation after adding AgNO3: Turned milky white + thieverf less transparent Using the ions present in the solution, write a net ionic equation that would explain the precipitate observed Use the above...
2. Answer the following questions about phosphoric acid (H3PO4). a. (2 points) What color will a 0.1 M solution of H3PO4 turn blue litmus paper? b. (2 points) What color will a 0.1 M solution of H3PO4 turn red litmus paper? c. (2 points) What color will phenolphthalein be in a 0.1 M solution of H,POA? d. (5 points) Write an equation for the reaction that takes place when phosphoric acid is added to water e. (4 points) What is...
prelab /postlab all questions please
Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq) NH4(aq), the equilibrium constant is calculated to be K = to 4.5 x10%. CHAT] A. Write the Equilibrium expression for this reaction. Keq = ỞNH TH] B. From the size of the number for Keq, does the equilibrium lie to the left or to the right? Right 2. If the reaction between iron(III) ion and thiocyanate ion, Fe3+ (aq) + SCN (aq) → FeSCN2+(aq),...
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