Adding baking soda to the cabbage juice makes it a neutral base. When you add liquids to the cabbage juice, very acidic solutions will turn it a red color; neutral liquids make a purplish color; and basic solutions will make cabbage juice a greenish-yellow.
What happens if you mix red cabbage with baking soda?
The cabbage juice turns a greenish blue color when it meets a base and reddish color when it meets an acid! This means our baking soda and Windex are bases and our vinegar and lemon juice are acids!
What happens when you mix red cabbage juice with baking soda and vinegar?
Cabbage juice is an indicator of pH, and it will reveal whether a chemical is an acid or a base. Cabbage juice turns pink when you add an acid, such as vinegar. It turns blue, or even green, when you add a base, such as baking soda. A chemical reaction occurs when an acid and a base are mixed together.
What is color of baking soda solution with cabbage color?
The colors look better in real life. The originial cabbage water should be a purple-blue color. The acidic solution that has vinegar in it should look pink or red. The basic solution that has baking soda in it should be blue, turquoise or green.
What will turn red cabbage juice green?
Red cabbage contains a water-soluble pigment called anthocyanin that changes color when it is mixed with an acid or a base. The pigment turns red in acidic environments with a pH less than 7 and the pigment turns bluish-green in alkaline (basic), environments with a pH greater than 7.
What is the pH of baking soda?
Baking soda, also known as sodium bicarbonate, is a base. This means that when people dissolve baking soda in water, it forms an alkaline solution. For example, a 0.1 molar solution of baking soda has a pH of around 8.3.
What happens when you put red cabbage in lemon juice?
Red Cabbage can become a pH indicator when boiled in water. If you cook red cabbage in hot water you end up with a purple liquid showing that the water is neutral in its acidity. When you add lemon juice, which is an acid, to the indicator solution it turns slightly red and gets redder if you add more.
What does dishwasher soap do to red cabbage juice?
Acidic solutions (acids) like vinegar, lemon and other citrus juices (which contain citric acid) and sodas (carbonic acid, or carbon dioxide dissolved in water) make the anthocyanin in cabbage juice turn reddish colors, while basic solutions (bases) like ammonia, baking soda and soaps turn cabbage juice bluish or …
What color does ammonia changes red cabbage juice to?
Pour about 50 – 100 mLs of your red cabbage indicator into each 250 mL beaker. Add your indicator to various household solutions until you see a color change. For example: Ammonia will turn your indicator green, NaOH -yellow, vinegar -red, and HCl – a deep red.
What color does bleach turn red cabbage?
When you put an acidic substance (like vinegar and lemon juice) into the cabbage juice, it turns red or red-purple. When you put a basic (like baking soda and bleach) substance into the cabbage juice, it turns green or blue-green.
What does baking soda do to cabbage?
So, what acts as a base? Correct! Baking soda is a base! The cabbage juice turns to warmer colors (reds and yellows) when acids are added.
Why does the hot water turn purple when poured over red cabbage?
The colour change we see depends on the properties of the liquid we test. We call liquids like cabbage juice indicator solutions, because they tell us something about the chemical composition of other substances.
What is the color of red cabbage in water?
Red cabbage contains anthocyanin, a pigment that changes colour when mixed with an acid or a base. When blended with water, red cabbage produces a purple liquid but it changes to red or pink when mixed with an acid, and blue or green when mixed with a base.