pH levels

Aim: 
I want to find out what colors of pH there are.

Research:
                                            Universal indicator video:
                                             

                                              Red cabbage indicator video:


Method:
Equipment:
- Acid - Hydrochloric acid
- Base - Sodium Hydroxide
- Test tubes
- Droppers
- Test tube rack
- Red cabbage
- Universal indicator
Intrsructions:
1. get your equipment
2. get out your test tubes
3. put 10 drops of the universal indicator into each test tube, carefully.
4. Add the different amounts of acid and base into different test tubes, to get the colors you need/want.
results:
*not my picture, but similar to what we got.

Discussion:

What is pH? In chemistry, pH is a scale used to identify the acid or base of a liquid solution. Acid solutions are measured to have a lower pH number than basic alkaline solutions. The pH scale is logarithmic (tells what power is needed to make a certain number) and indicates the concentration of hydrogen ions in the solutions.

What is an acid? acid is a substance with particular chemical properties including litmus red, neutralizing alkalis, and dissolving some metals, or, a caustic sour-tasting liquid kind.

how do you measure acid levels? pH Test papers, Red litmus turns blue in basic solutions, and blue litmus turns red in acidic solution, and neutral litmus turns red in acidic solutions, and blue in basic solutions.

What are the pH colors? R O Y G B I V - Red Orange Yellow Green Blue Indigo Violet.

What is a base? base, in chemistry, any substance that in water solution is slippery to touch, tastes bitter, or changes the color of indicators. 

extra information:

How do you calculate the pH of an aqueous solution? To calculate the pH of an aqueous solution you need to know the concentration of the hydronium (name for aqueous cation) ion in moles per liter.

Basics: pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral, pHs of less than 7 showing acidity, whereas a pH of greater than 7 shows a base.

Elements: The 'H' in pH stands for the element, hydrogen. On a simple level, the pH scale can be thought of as a ranking of the number of hydrogen ions in a solution: the more hydrogen ions there are, the lower the pH number.