Refill the glasses one last time - the liquid will be colorless again! What Happened: Now pour all five glasses back in the pitcher. Refill the remaining four glasses – the water will be red!ĥ. Fill all the glasses with water from the pitcher, then pour all of them back in the pitcher except for the glass with vinegar.Ĥ. Add a few drops of water to the first glass and stir to dissolve the sodium carbonate.ģ. In the first glass put a little less than 1/8 teaspoon of sodium carbonate, in the second put 6 drops of phenolphthalein solution, and in the third put three droppers-full of vinegar.Ģ.
5 glasses and a non-see-through pitcher of waterġ.> Get our Chemistry Magic Tricks Kit to do this project and 11 more! What You Need: (If it didn’t, try adding a little more vinegar.)Ĭan you pour red “kool-aid” out of a pitcher of water? Try it out and impress your audience – just don’t drink the finished product!Ĭheck out our project video to see this trick in action! If you had enough vinegar in your last flask, the solution should have turned red again. Ammonia is a base, so when you mixed the acidic vinegar solution with ammonia, it raised the pH and the water turned blue. Vinegar is an acid, so when you poured the indicator solution into the second flask, it turned red. Acids turn the indicator red, pink, orange, and yellow, while bases turn it green, blue, and purple. Chemicals with a low pH (0-6) are acidic, while those with a high pH (8-14) are basic. (A pH of 7 is neutral: neither acidic nor basic.) Universal indicator is a chemical that changes color in the presence of acids and bases from a pH of 2 to 10. The secret of this magic color change is pH. Slowly pour the contents of the first flask into the second one, then the second into the third and the third into the fourth. Put 100ml of vinegar in the fourth flask.ĥ. (Be very careful not to breathe in the strong fumes from the ammonia!)Ĥ. Add a dropper-full of ammonia to the third flask. In the second flask, put a dropper-full of vinegar.ģ. Put 25 drops of universal indicator into the first flask, and then add 200ml of water.Ģ. Four 250 ml erlenmeyr flasks or 250 ml beakersġ.See this experiment in action before you try it! Color Change Chemical Reactions Experiments + Video #1 – Confounding ColorĬan you get a liquid to change color simply by pouring it into another container?
#Color alert kitchen timer full
See our complete introduction to chemistry kit for a full overview of chemistry concepts and experiments.
Adult supervision required.)Ĭheck out our top-selling beginner chemistry set and home chemistry kit to perform classic experiments. Use caution when working with chemicals! Read the information on the chemical label before you start, and always wear protective lab safety equipment such as goggles, gloves, and aprons. ( NOTE: Some of the chemicals used in these projects can be hazardous if misused. Now is your chance to put some tricks up your sleeve and wow your friends with scientific sleight of hand. Sometimes it’s hard to tell the difference!Ĭhemical reactions often produce spectacular color changes that appear to happen just by magic.
0 kommentar(er)
