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8. When molten sodium is electrolyzed using inert electrodes, which of the following statements is NOT...
QUESTION 16 When fused (molten) sodium chloride is electrolyzed what occurs? Gaseous chlorine is formed at...
QUESTION 16 When fused (molten) sodium chloride is electrolyzed what occurs? Gaseous chlorine is formed at the cathode Hydrogen gas is formed at the cathode Liquid sodium is formed at the cathode Liquid chlorine is formed at the anode Solid sodium is formed at the anode QUESTION 17 Electrolysis is the splitting of atomic nuclei by electrical energy the splitting of atoms by electrical energy the passage of electrical energy through a split-field armature the chemical reaction which results when...
A solution of CdSO4 was electrolyzed using Pt electrodes (inert electrode). Given the following electrode potential...
A solution of CdSO4 was electrolyzed using Pt electrodes (inert electrode). Given the following electrode potential information, determine which one statement concerning the products of electrolysis is correct. Give your reasoning. 2 H2O(l) + 2 e- D 2 OH‑(aq) + H2(g) Eored = -0.83V Cd2+(aq) + 2 e- D Cd(s), Eored = -0.40V O2(g) + 4 H+(aq) + 4 e- D 2 H2O(l) Eored = +1.23V S2O82-(aq) + 2 e- D 2 SO42-(aq) Eored = +2.01V a) Water is oxidized...
Metallic sodium can be made by the electrolysis of molten NaCl. (a) What mass of Na...
Metallic sodium can be made by the electrolysis of molten NaCl. (a) What mass of Na is formed by passing a current of 9.02 A through molten NaCl for 1.60 days? The unbalanced chemical reaction representing this electrolysis is shown below. NaCl Na + Cl2 g of Na is formed by this electrolysis. (b) How many minutes are needed to plate out 6.00 g of Na from molten NaCl using 9.49 A current? minutes are needed.
What will be deposited at the cathode when the molten salts Calcium chloride and sodium bromi...
What will be deposited at the cathode when the molten salts Calcium chloride and sodium bromi are present in an electrolytic cell? Ca2+ +2e® +Ca (s) Eºred=-2.868 V Nat+e+Na (s) Eº red= -2.71 V Cl2(g)+ 2e → 2CF E° red= 1.358 V Brz(1) + 2e™ 2Br Eºred= 1.066 V o chlorine obromine O sodium O calcium
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at...
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at one electrode and gaseous chlorine at the other electrode. The solution around the electrode at which hydrogen gas is evolved becomes basic as the electrolysis proceeds. Which of the following responses describe or are applicable to the #cathode and the reaction that occurs at the cathode? (1) the positive electrode (2) the negative electrode (3) 2 C Cl2 + 2 e (4) Cl2 +...
An aqueous Snl, solution is electrolyzed under 1 bar pressure using platinum electrodes. (a) Write the...
An aqueous Snl, solution is electrolyzed under 1 bar pressure using platinum electrodes. (a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below. Standard Reduction Potentials (Volts) at 25°C 12(s) +2 — 21'(aq) 0.535 O2(g) + 4 H30* (aq) + 4 —6H20(1) 1.229 2 H20(1) + 2 € H2(g) + 2 OH'(aq) -0.828 Sn²+(aq) +2 € + Sn(s) -0.140 Half-reaction at anode: Half-reaction at cathode: (b) What is the expected...
When a current passes through the body, it is mainly carried by positively charged sodium ions...
When a current passes through the body, it is mainly carried by positively charged sodium ions (Na+) with charge +e and negatively charged chloride ions (Cl−) with charge −e. In a given electric field, these two kinds of ions do not move at the same speed; the chloride ions move 50% faster than the sodium ions. Part A If a current of 190 μA is passed through the leg of a patient, how many chloride ions pass a cross section...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when ...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when a current of electricity is passed through (i) a solution of potassium chloride (KCI) in water and (i) water containing a little sulphuric acid (H2SO4). (a) [11 marks] (b) Explain why potassium is formed when a current of electricity is passed through fused (molten) potassium chloride but not through a solution of potassium chloride in water as in (a). In the case of fused potassium...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a)...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a) The pH of the solution near the cathode will increase as the electrolysis reaction proceeds. b) Mg will plate out at the cathode. obhos 23 enhora dolomoHS c) Mg2+ is getting reduced at anode. 22 nenusilon olvides d) Br is getting reduced at the cathode. e) None of the above statements is correct. 3. The half-reaction that occurs at the anode in the electrolysis...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when a...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when a current of electricity is passed through (i) a solution of potassium chloride (KCI) in water and (i) water containing a little sulphuric acid (H2SO4). (a) [11 marks] (b) Explain why potassium is formed when a current of electricity is passed through fused (molten) potassium chloride but not through a solution of potassium chloride in water as in (a). In the case of fused potassium...
QUESTION 16 When fused (molten) sodium chloride is electrolyzed what occurs? Gaseous chlorine is formed at the cathode Hydrogen gas is formed at the cathode Liquid sodium is formed at the cathode Liquid chlorine is formed at the anode Solid sodium is formed at the anode QUESTION 17 Electrolysis is the splitting of atomic nuclei by electrical energy the splitting of atoms by electrical energy the passage of electrical energy through a split-field armature the chemical reaction which results when...
What will be deposited at the cathode when the molten salts Calcium chloride and sodium bromi are present in an electrolytic cell? Ca2+ +2e® +Ca (s) Eºred=-2.868 V Nat+e+Na (s) Eº red= -2.71 V Cl2(g)+ 2e → 2CF E° red= 1.358 V Brz(1) + 2e™ 2Br Eºred= 1.066 V o chlorine obromine O sodium O calcium
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at one electrode and gaseous chlorine at the other electrode. The solution around the electrode at which hydrogen gas is evolved becomes basic as the electrolysis proceeds. Which of the following responses describe or are applicable to the #cathode and the reaction that occurs at the cathode? (1) the positive electrode (2) the negative electrode (3) 2 C Cl2 + 2 e (4) Cl2 +...
An aqueous Snl, solution is electrolyzed under 1 bar pressure using platinum electrodes. (a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below. Standard Reduction Potentials (Volts) at 25°C 12(s) +2 — 21'(aq) 0.535 O2(g) + 4 H30* (aq) + 4 —6H20(1) 1.229 2 H20(1) + 2 € H2(g) + 2 OH'(aq) -0.828 Sn²+(aq) +2 € + Sn(s) -0.140 Half-reaction at anode: Half-reaction at cathode: (b) What is the expected...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when a current of electricity is passed through (i) a solution of potassium chloride (KCI) in water and (i) water containing a little sulphuric acid (H2SO4). (a) [11 marks] (b) Explain why potassium is formed when a current of electricity is passed through fused (molten) potassium chloride but not through a solution of potassium chloride in water as in (a). In the case of fused potassium...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a) The pH of the solution near the cathode will increase as the electrolysis reaction proceeds. b) Mg will plate out at the cathode. obhos 23 enhora dolomoHS c) Mg2+ is getting reduced at anode. 22 nenusilon olvides d) Br is getting reduced at the cathode. e) None of the above statements is correct. 3. The half-reaction that occurs at the anode in the electrolysis...
2. Answer all parts Describe in detail, using diagrams and reaction equations, what happens when a current of electricity is passed through (i) a solution of potassium chloride (KCI) in water and (i) water containing a little sulphuric acid (H2SO4). (a) [11 marks] (b) Explain why potassium is formed when a current of electricity is passed through fused (molten) potassium chloride but not through a solution of potassium chloride in water as in (a). In the case of fused potassium...
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