{"product_id":"galvanic-cell-with-led-power-a-light-with-chemistry","title":"Galvanic Cell with LED — Power a Light with Chemistry","description":"\u003cdiv class=\"description\"\u003eNo batteries. No outlets. No external power source of any kind. Just two metal electrodes, two electrolyte solutions, a homemade salt bridge made from a strip of paper towel and a glowing LED that you powered with a spontaneous chemical reaction. This is the Daniell cell, invented in 1836 and the direct ancestor of every battery ever made. Build it from scratch, watch zinc slowly dissolve at one electrode while copper atoms deposit at the other, connect two cells in series to make the LED shine brighter. This is exactly the same way a 9V battery packs six cells together to hit its target voltage. The chemistry is happening at the atomic level and the glowing light is your proof. If you've ever wondered how a battery actually works, not just that it stores energy, but what is physically happening inside, this is the experiment that answers that question in the most direct way possible.\u003c\/div\u003e\n\u003cdiv class=\"copy-grid\"\u003e\n\u003cdiv class=\"copy-section\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eZinc electrode strip (~5cm)\u003c\/li\u003e\n\u003cli\u003eCopper electrode strip (~5cm)\u003c\/li\u003e\n\u003cli\u003eZinc sulfate solution 0.5M 50mL\u003c\/li\u003e\n\u003cli\u003eCopper sulfate solution 0.5M 50mL\u003c\/li\u003e\n\u003cli\u003eSodium chloride 5g — salt bridge electrolyte\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRed LED × 2 (1.8–2.2V forward voltage)\u003c\/li\u003e\n\u003cli\u003eAlligator clip leads × 4\u003c\/li\u003e\n\u003cli\u003eSmall beakers × 2\u003c\/li\u003e\n\u003cli\u003eFine sand paper\u003c\/li\u003e\n\u003cli\u003eNitrile gloves × 2 pairs\u003c\/li\u003e\n\u003cli\u003eSafety goggles × 2 pairs\u003c\/li\u003e\n\u003cli\u003ePrinted worksheet with voltage calculations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eYou Provide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePaper towels\u003c\/li\u003e\n\u003cli\u003eMultimeter - not necessary, but helps to quantify battery voltage\u003c\/li\u003e\n\u003cli\u003eWaste containers - old jars or bottles for waste disposal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"copy-section\"\u003e\n\u003ch4\u003eCurriculum Connections\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eNGSS HS-PS1-2 \/ HS-PS3-2\/3 — Chemical to electrical energy conversion\u003c\/li\u003e\n\u003cli\u003eNGSS HS-ETS1-2 — Engineering a multi-cell series circuit\u003c\/li\u003e\n\u003cli\u003eAP Chemistry Unit 9 — E°cell, ΔG° = −nFE°, galvanic vs electrolytic cells\u003c\/li\u003e\n\u003cli\u003eIB Chemistry Topics 9 \u0026amp; 19 — Redox, standard electrode potentials, electrochemistry HL\u003c\/li\u003e\n\u003cli\u003eReal-world: battery technology, electric vehicles, portable electronics, energy storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"copy-section\"\u003e\n\u003ch4\u003e♻ Waste Disposal\u003c\/h4\u003e\n\u003cdiv\u003e\u003cstrong\u003eRating: Medium\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eCopper sulfate and zinc sulfate solutions are toxic to aquatic life. Collect in labeled waste containers, do not drain. Salt bridge solution is non-hazardous and can be drained. Electrodes are reusable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Alchemist Experience","offers":[{"title":"Default Title","offer_id":52052982169882,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/thealchemistexperience.shop\/products\/galvanic-cell-with-led-power-a-light-with-chemistry","provider":"The Alchemist Experience","version":"1.0","type":"link"}