https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:applications-of-thermodynamics/x2eef969c74e0d802:galvanic-voltaic-and-electrolytic-cells/v/electrolytic-cells 2022-10-05T02:43:18.611402953Z Electrolytic cells Electrolytic cells use an electric current to drive a thermodynamically unfavored redox reaction. As in galvanic cells, oxidation occurs at the anode and reduction occurs at the cathode. An application of electrolysis is the electroplating of metals, which uses an electric current to deposit a thin layer of metal onto the surface of another material. Jay video https://cdn.kastatic.org/ka_thumbnails_cache/9215a6e8-164d-494b-8e2b-878e399e344d_1280_720_base.png Electrolytic cells Electrolytic cells use an electric current to drive a thermodynamically unfavored redox reaction. As in galvanic cells, oxidation occurs at the anode and reduction occurs at the cathode. An application of electrolysis is the electroplating of metals, which uses an electric current to deposit a thin layer of metal onto the surface of another material. https://cdn.kastatic.org/ka-youtube-converted/patZ8zoemVo.mp4/patZ8zoemVo.mp4 481 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/chemistry/oxidation-reduction/cell-potential/v/standard-reduction-potentials 2021-06-01T06:56:21Z Standard reduction potentials How to use a table of standard reduction potentials to calculate standard cell potential. Identifying trends in oxidizing and reducing agent strength.  Jay video https://cdn.kastatic.org/googleusercontent/_HHxmfkSZ_36SBhjUmdbg3cvpcH__FbaI5v7rbjHhFMBBnCLxYc2riHJUjgrvWTING9ArMamJHKFf_aqbbmfx95P Standard reduction potentials How to use a table of standard reduction potentials to calculate standard cell potential. Identifying trends in oxidizing and reducing agent strength.  https://cdn.kastatic.org/ka-youtube-converted/oAOq55MPJpM.mp4/oAOq55MPJpM.mp4 550 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/physical-chemistry-essentials-class-12/x1dda8a4b826d5e6c:electrochemistry/x1dda8a4b826d5e6c:quantitative-aspect-of-electrolysis-faraday-s-laws/v/electrolysis-of-aqueous-nacl 2025-05-30T06:26:57.612239615Z Electrolysis of aqueous NaCl In this video, we will look at the electrolysis of aqueous NaCl which is used in the commercial production of NaOH. We will explore why electrolysis of aqueous NaCl is preferred over molten NaCl and what different products are obtained in each case. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Electrolysis of aqueous NaCl In this video, we will look at the electrolysis of aqueous NaCl which is used in the commercial production of NaOH. We will explore why electrolysis of aqueous NaCl is preferred over molten NaCl and what different products are obtained in each case. https://cdn.kastatic.org/ka-youtube-converted/DdR7Y34haoA.mp4/DdR7Y34haoA.mp4 442 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/grade-12-chemistry-snc-aligned/x7a43e770fc9e15cf:electrochemistry/x7a43e770fc9e15cf:electrolytic-cells-and-faradays-laws/v/free-energy-and-cell-potential-edited 2023-09-10T17:11:17.624018169Z Free energy and cell potential Explore the relationship between cell potential and free energy in voltaic cells. Understand how to calculate Faraday's constant and use it to determine the standard change in free energy. Discover the conditions for standard cell potential and how it links to spontaneous redox reactions. Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. video https://cdn.kastatic.org/googleusercontent/y7lLnnPPfhYCHGHRruS5R4tqp-J0taeZYY3VS7u-bxXiWbzphoozS8kSyW0kK9ok2q3kea1IJJox51C6xYfSQVEK1Q Free energy and cell potential Explore the relationship between cell potential and free energy in voltaic cells. Understand how to calculate Faraday's constant and use it to determine the standard change in free energy. Discover the conditions for standard cell potential and how it links to spontaneous redox reactions. Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. https://cdn.kastatic.org/ka-youtube-converted/puJN5OuzXeY.mp4/puJN5OuzXeY.mp4 468 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:applications-of-thermodynamics/x2eef969c74e0d802:electrolysis-and-faraday-s-law/e/electrolysis-and-faraday-s-law 2022-01-11T22:17:00.362877679Z Electrolysis and Faraday's law Practice solving quantitative electrolysis problems in this set of free questions designed for AP Chemistry students. Lauren Rosebrugh exercise https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:moles-and-molar-mass/v/the-mole-and-avogadro-s-number 2022-09-07T08:21:01.673602243Z The mole and Avogadro's number One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/6088ce39-bf63-44b0-8918-4702d0c7bf46_1280_720_base.png The mole and Avogadro's number One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles. https://cdn.kastatic.org/ka-youtube-converted/cvi4IJMZ13Q.mp4/cvi4IJMZ13Q.mp4 537 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:applications-of-thermodynamics/x2eef969c74e0d802:electrolysis-and-faraday-s-law/v/quantitative-electrolysis-ap 2022-10-05T02:43:18.611402953Z Quantitative electrolysis Given the amount of electrical charge that passes through an electrolytic cell, we can calculate the quantity of substances consumed or produced during electrolysis (or vice versa). The total charge is related to the magnitude of the current and the time it runs by the equation I = Q/t, where I is the current in amperes, Q is the charge in coulombs, and t is the time in seconds. Jay video https://cdn.kastatic.org/ka_thumbnails_cache/f49fdbaa-2ba6-46a5-97c6-37cffd63150a_1280_720_base.png Quantitative electrolysis Given the amount of electrical charge that passes through an electrolytic cell, we can calculate the quantity of substances consumed or produced during electrolysis (or vice versa). The total charge is related to the magnitude of the current and the time it runs by the equation I = Q/t, where I is the current in amperes, Q is the charge in coulombs, and t is the time in seconds. https://cdn.kastatic.org/ka-youtube-converted/v5qQusbk-j0.mp4/v5qQusbk-j0.mp4 447 Electrolytic cells and Faraday’s Laws https://www.khanacademy.org/science/revision-term-1-tg-chemistry-class-12/x1c9114a2545341f7:week-2/x1c9114a2545341f7:electrochemistry-and-chemical-kinetics/e/applications-of-faraday-s-laws-of-electrolysis 2025-04-25T12:40:35.958979948Z Applications of Faraday's laws of electrolysis -1 Let's solve a few problems to calculate the amount of substance deposited/evolved at electrodes using Faraday's laws. Aanchal Arora exercise https://www.khanacademy.org/science/grade-12-chemistry-snc-aligned/x7a43e770fc9e15cf:electrochemistry/x7a43e770fc9e15cf:electrolytic-cells-and-faradays-laws/v/quantiative-electrolysis-edited 2023-09-10T17:11:17.624018169Z Quantitative electrolysis Explore the electrifying world of electrolytic cells! Discover how a non-spontaneous redox reaction is driven by current from an external voltage source. Learn about the formation of solid zinc at the zinc electrode and the oxidation of solid copper. Get charged up with quantitative electrolysis problems, using Faraday's constant and mole ratios to calculate the mass of zinc deposited. Visit us for health and medicine content or for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Jay video https://cdn.kastatic.org/googleusercontent/TeI9JjzMkxJqIpSd-sAY-YC5qpLcTgbSuzi2Lq5T9M06F4gCpOb6B0rLzSTFVBAfM7-UpFPp9_c6sXg1oVF1JYzN Quantitative electrolysis Explore the electrifying world of electrolytic cells! Discover how a non-spontaneous redox reaction is driven by current from an external voltage source. Learn about the formation of solid zinc at the zinc electrode and the oxidation of solid copper. Get charged up with quantitative electrolysis problems, using Faraday's constant and mole ratios to calculate the mass of zinc deposited. Visit us for health and medicine content or for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. https://cdn.kastatic.org/ka-youtube-converted/rzkgZWxT4UM.mp4/rzkgZWxT4UM.mp4 400 Electrolytic cells and Faraday’s Laws