It is necessary to dilute the given substances prior to determining the pH because the concentrated solutions prevent contact with the pH meter and give lower values.
A solution's acidity may be determined by looking at its pH, which is a measurement of hydrogen ion concentration. Pure water slightly separates into ions with roughly equal amounts of hydrogen and hydroxyl (OH) ions.
Detergents, soaps, and shampoos all include surfactants, and when they are concentrated, their activity prevents the surfactant from making adequate contact with the pH meter's electrode, resulting in readings that are a little lower than they should be. The pH is determined correctly when the surfactant activity is diluted in the solution.
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Answer:
A meso compound is a non-optically active member of a set of stereoisomers, at least two of which are optically active.
Answer:
This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.
Explanation:
Answer: shining a bright light on the object and testing for decomposition
Decomposition is the separation of a molecule into its elements or simpler compounds.
And a chemical property is the ability of a
substance to combine or to become one or more substances.
Then, testing the ability of an object for decomposition is testing a chemical property.
Answer:
test or trial
Explanation:
When somone is doing an expirement they usually conduct tests to see if their hypothesis was valid. They could so small trials like this,
Example:
Problem: Can people taste the difference between Coca Cola and Pepsi?
Trials:
1. Yes
2. Yes
3. No
4. Yes
5. Yes
6. No
7. No
8. Yes
9. Yes
10. Yes
Based on the majority, the solution to our problem is yes, most people can taste the difference between Coca Cola and Pepsi.