find the colour and approximate PH value of the following samples by using PH paper (1) lemonjuice (2) vinegar(3) baking soda (4) sodium hydroxide solution (5) water.
Answers
Answer:
It occurs historically in many contexts and cultures, and is given many different names—Satan, Lucifer, Beelzebub,Mephistopheles, Al-Shaytan—and attributes: It is portrayed as blue, black, or red; it is portrayed as having horns on its head, and without horns, and so on.
Explanation:
pH: It is the power of H+ ions in a solution.
It is defined as the negative logarithm of hydrogen ions in a solution. It is used to determine the strength of aci d/base.
The term pH refers to the “potential of hydrogen ion.”
pH is the negative logarithm of the molarity of H+.
PH = – log10 [H+]
H+ is the concentration of hydrogen ion in the solution.
The pH scale is logarithmic, meaning that an increase or decrease of an integer value changes the concentration by a ten fold. For example, a pH of 3 is ten times more acidic than a pH of 4. Likewise, a pH of 3 is one hundred times more acidic than a pH of 5. Similarly a pH of 11 is ten times more basic than a pH of 10.