Natural rainwater (pH 5 - 6)
Milk (pH 6 - 6.6)
me
A substance with a pH of 6 is considered slightly acidic. Some examples of substances with a pH of 6 include urine and some fruit juices.
an acid. one example of a pH 6 substance is urine.
Anything with a pH less than 7 is an acid. Anything with a pH greater than 7 is a base. pH = 7 is neutral
A substance with a pH of 2 is 1000 times more acidic than a substance with a pH of 6. This is because each unit change on the pH scale represents a 10-fold change in acidity. So, the difference in pH of 4 units means a 10^4 or 10000-fold difference in acidity.
a weak acid
Acids.
Substances with a pH of 1-6 are acidic in nature. Examples include lemon juice, vinegar, and stomach acid.
- log(1.0 X 10 -8 M)= 8 pH------------ log(1.0 X 10 -6 M)= 6 pH---------The pH lowered in solution 100 times in concentration of H +. From basic, 8 pH, to acidic, 6 pH.
The pH scale ranges from 0-14. From 0-6, the substance is acidic. A value of 7 means the substance is neutral. From 8-14, the substance is basic.
The substance with the highest pH is liquid ammonia, which has a pH of about 11.6.
Strong acids have pH values below 3 , so it is a weak acid.