pH scale basics
What does a pH value of 7 represent?
Neutral
What is the logarithm of 1,000 to the base 10?
3
Name one practical application of pH measurement in gardening.
Soil, fertilization.
A pH of 3 is how many times more acidic than a pH of 5?
100 times
What is the common logarithm of 100?
2
(log₁₀100 = 2)
Name one practical application of pH measurement in swimming pool maintenance
To reduce algae or the chlorine levels
What does a pH value below 7 indicate about a substance?
It indicates acidity.
What is the concentration of a liquid with a pH of 6?
1/1000000 = .0000001 = 10 -6
Name one practical application of pH measurement in cooking
Determining the doneness of food items