Acid Test Search Results

How To: Analyze cheap sulfuric acid for concentration & purity

In this home scientist video the instructor Robert Bruce talks about cheap sulfuric acid. He says that sulfuric acid is very important in any lab both as a reagent and a precursor for preparing other chemicals. He points to the battery acid saying that it is a good source of sulfuric acid which is 35% concentrated. Now he shows various methods to obtained sulfuric acid and shows how to test one of the thus obtained sulfuric acid for its concentration. In this video the author talks about sulf...

How To: Check the pH levels in the soil of your garden

Testing the pH level of your garden soil can tell you a lot about your garden. Depending on the results of your test you can see what the acid/neutral/alkaline levels are and you can even change the levels by adding different kinds of elements so that you can grow just about anything you want and keep your garden healthy. You can purchase a SoilStick test at Plumstone to see what type of garden you've been working with.

How To: Polymerize an alkenes with an acid in organic chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to handle the polymerization of an alkene with an acid in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Create an acid-base indicator using purple cabbage

Purple cabbage is a natural indicator and this video teaches you how to easily prepare purple cabbage in the comfort of your own home to be used as an acid and base indicator. Take one leaf of your purple cabbage, tear it into smaller pieces and place all the pieces into a beaker or bowl of boiling water for an hour. Collect the liquid from your mixture into a bottle. You’ll notice that the liquid is now dark blue or purple at which point is neutral. It is ready to be used as an indicator. ...

How To: Stain a concrete floor

Using acid stains on concrete floors can be cheaper and easier to maintain than laying down tile on your floor. Here, Gaye Goodman shows you how to make acid stains on your concrete floor, a nice, economical way to make beautiful floors. First, you should test on samples of your floor in order to decide which color to use and to determine how the acid stain will look. After covering the bottom of your walls with painter's tape to avoid splashing, mix about 1 cup of TSP to 4 gallons of water. ...

How To: Make nitric acid

Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.

How To: Make hydrochloric acid from salt

In this tutorial, we learn how to make hydrochloric acid from salt. First, you will pour some salt into a distil flask. After this, you will add in some concentrated sulfuric acid to the salt. Next, you will let these react with each other. You will start to see gasses bubble up and the excess hydrogen chloride gas come out through the top of the tube. To create a stronger reaction, you can add heat underneath the reaction. Then, test this by exposing it to ammonium chloride. If it's the righ...

How To: Make a storm inside a test tube

This science experiment will show you how to make a storm inside a test tube. This video tutorial will demonstrate the process of making the miniature thunderstorm inside a test tube with just a few common chemicals. All you need for your very own thunder storm is a glass test tube with holder, sulfuric acid, ethyl alcohol (ethanol), potassium permanganate, glass dropper, measuring spoon, and please wear safety goggles. Sparks and pops occur completely random, just like in a real thunderstorm!

How To: Paint and acid wash a swimming pool

This three-part video tutorial demonstrates how to acid wash and paint a swimming pool. In part 1, host Tim Casey shows you how to properly and safely acid wash your swimming pool to prepare for painting. Part 2 discusses the steps involved in repairing cracks in a pool wall, step and deck while Part 3 covers the actual pool painting process.

How To: Make boric acid from borax

This is a video tutorial in the Education category where you are going to learn how to make boric acid from borax. For this experiment you will need borax (disodium tetra borate) and conc. hydrochloric acid. Take 25 ml of hydrochloric acid and dilute it with 75 ml of water. Next take 6 - 7 gms of borax and dissolve it in boiling water. Now add equal amount of hydrochloric acid. Crystals of boric acid will start forming. They are completely insoluble in cold water. After about half an hour, fi...

How To: Make aluminum nitrate nonahydrate

Aluminum nitrate nonahydrate is a crystalline hydrate - a salt of aluminum and nitric acid - Al(NO3)3·9H2O. It's used for a variety of things such as antiperspirants, corrosion inhibitors, and petroleum refining, or… glow-in-the-dark powder. Watch this science video tutorial from Nurd Rage on how to make aluminum nitrate nonahydrate with Dr. Lithium.

How To: Clean your espresso machine with citric acid

In this video, we learn how to clean your espresso machine with citric acid. First, mix the acid up with some water in a pouring cup. Then, pour this into the machine and run water through the machine to get the boiler filled up with the acid solution. Run it out the steam wand as well so it has a chance to get into all the pipes and valves. After you have done all the steps, run it out once more with just plain water to clean it out of the citric acid taste. Then, you will be able to run the...

How To: Understand how metals react in hydrochloric acid

In this video tutorial the instructor talks about Hydrochloric acid (HCL) and how it reacts to a few metals. To try this out take 30 ml of concentrated hydrochloric acid in a beaker. You need to employ caution while handling acids, especially if you use strong ones. Now you can throw small pieces of different metals into it carefully to see how it reacts with different metals. For instance when this HCL comes in contact with metals various reaction take place depending up on the metal. Like i...

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