Respuesta :
Answer:
A) Set a piece of pH paper in front of each solution before testing to keep organized.
C) Use a transfer pipet to remove a few drops from the solution to drop onto the paper.
D) Wait a minute or so before reading color.
To identify pH with indicator paper,Set a piece of pH paper in front of each solution before testing to keep organized then, Use a transfer pipet to remove a few drops from the solution to drop onto the paper, Lastly Wait a minute or so before reading color.
What is a pH?
- The pH is a measure of how acidic/basic a solution bythe amount of free hydrogen and hydroxyl ions in the water.
- The range goes from 0 - 14, A point on 7 is neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates alkalinity.
A pH paper usually called litmus paper is used to determine if the acidity, basicity or neutrality of a solution. This is determined by the following process:
- Set a piece of pH paper in front of each solution before testing to keep organized.
- Use a transfer pipet to remove a few drops from the solution to drop onto the paper.
- Wait a minute or so before reading color.
Now if the paper turns red, the pH may likely be below 7 to show acidity
if the paper turns blue the pH may likely be above 7 to show basicity/alkalinity.
if the paper turns green , the pH is 7 to show neutrality.
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