Cosmetic Products and Ingredients

Question 1

Understanding pH

Answer 1

potential hydrogen is the unit of
measurement that indicates whether a
substance is acidic, neutral or alkaline; pH numbers measure the amount of acid or alkali in a water-based solution; Only solutions that contain water and/or dissolve in water can be acidic
or alkaline

Question 2

Acid

Answer 2

more positive hydrogen ions than negative ions; Acids release a hydrogen ion and are positively charged (+)

Question 3

Alkaline

Answer 3

more negative hydroxide

ions; sometimes referred to as “base”

Question 4

pH Scale

Answer 4

pH measurement scale ranges from 0 to 14 with the number 7 as the midpoint or point of neutrality hydrogen ions (H+) and hydroxide ions (OH-) are equal The pH scale is logarithmic, each step or number increases by multiples of 10

Question 5

pH Numbers

Answer 5

numbers indicate amount of acid or alkaline in a water-based solution
Numbers below 7 = acidic
Numbers above 7 = alkaline

Question 6

pH Acidic

Answer 6

Solution is acidic if it
has more positive
hydrogen ions than
negative hydroxide ions

Question 7

pH Neutral

Answer 7

Solution is neutral if
it has an equal
amount of positive
hydrogen ions and
negative hydroxide
ions.

Question 8

Alkaline

Answer 8

Solution is alkaline if
it has more negative
hydroxide ions than
positive hydrogen
ions.