Stain removers are generally more effective when they are basic solutions. Basic solutions are better at breaking down organic compounds, such as those found in stains, making them easier to remove.
An acidic solution. Solutions with a pH below 7 are considered acidic.
I would expect the pH of a solution of soap to be closer to 9, as soap is typically basic in nature due to the presence of alkaline components like sodium hydroxide or potassium hydroxide in its composition. A pH of 4 would be more acidic, which is not characteristic of soap.
A solution with a pH of 2 is strongly acidic. Remember, 7 is neutral, anything below 7 is acid, anything above 7 is basic or alkaline.
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Phenolphthalein will turn pink or magenta in basic solutions and remain colorless in acidic solutions. Therefore, if added to an ammonia-based solution of window cleaner, which is basic, we would expect the solution to turn pink or magenta.
it would be acidic
Moderately acidic.
An acidic solution. Solutions with a pH below 7 are considered acidic.
A solution with a pH of 2 is strongly acidic. Remember, 7 is neutral, anything below 7 is acid, anything above 7 is basic or alkaline.
I would expect the pH of a solution of soap to be closer to 9, as soap is typically basic in nature due to the presence of alkaline components like sodium hydroxide or potassium hydroxide in its composition. A pH of 4 would be more acidic, which is not characteristic of soap.
that would be 1
Phenolphthalein will turn pink or magenta in basic solutions and remain colorless in acidic solutions. Therefore, if added to an ammonia-based solution of window cleaner, which is basic, we would expect the solution to turn pink or magenta.
Blue litmus paper turns red in an acidic solution.
You get a dilute solution. With 4 litres of water, you have more solvent (H2O) than solvent (HCl) than you originally had.
acidic
No, a sugar and water solution is not inherently acidic. Sugar (sucrose) does not contain any free hydrogen ions to make the solution acidic. The pH of a sugar and water solution would be relatively neutral.
For example methyl orange become red in acidic solutions.