The pH scale is used to classify substances as acids and bases. The scale goes from 0 to 14. Things that are acids have a pH number that is less than 7. The lower the number, the stronger the acid. Bases have pH values higher than 7. The higher the number, the stronger the base. An example of a strong base is drain cleaner or oven cleaner.
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ph Scale graphic
pH scale Acidic Neutral battery acid lemon juice acid rainclean rain Basic 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 healthy ammonia lake soda bleach baking soda
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Universal Indicator Chart and Recipes - Science Notes and …
2021年8月12日 · Download and print a universal indicator color chart. Learn how to make universal indicator solution and interpret pH results.
pH scale 1. Colour in the scale to match the colours of universal indicator paper. 2. Cut out the labels below. Add them to your scale in the
The pH scale is a way of gauging the acidity or alkalinity of a solution. It is calculated using: pH = -log10[H+]. Adding an acid to water increases the H+ (H3O+) concentration, and decreases the OH- concentration. An alkali does the opposite.
On the construction paper, NEATLY draw a pH scale. Scale the line from 0 to 14 with a mark for each number. Cut out words & paste the labels in correct areas of pH scale. Color & Label the pH on the picture. Cut out & paste in the correct sections of the pH scale.
The pH scale covers the active concentration of the H + ions and OH¯ ions and therefore the pH value is defined as the negative common logarithm of the active hydrogen ion concentration in an aqueous solution.
Measuring the pH of a Solution 12. Each pH increment on the pH scale represents a ten-fold change in H + ion concentration. For example, a solution that has a pH of 6 is 100 times more acidic than a solution that has a pH of 8.
The pH scale ranges from 0 to 14 and indicates how acidic or basic a substance is. A pH of 7 is neutral. A pH less than 7 is acidic . A pH greater than 7 is basic. The lower a substance's pH, the more acidicit is. Each whole pH value below 7 (the neutral point) is ten times more acidic than the next higher value.