pH 4 = acid
pH 12= base
The nature of the solution be it acidic or basic will determine the PH value of the given solution.
The pH of sodium carbonate solutions is typically around 11-12, making it basic or alkaline.
Acidic solutions have a pH under 7.
Basic solutions have the pH over 7.
Red - pH 1 (acidic) Green - pH 7 (neutral) Blue - pH 12 (basic)
By dissolving the pH solution a colour change will occur in the solution that should be tested.Compairing the colour of solution to the colours marked on of pH chart we can find out if the solution we tested is of alkaline nature or of acidic nature or neutral.Solutions of pH7are neutral solutions.Solutions below pH7 are acidic solutions and those above pH7 are alkaline solutions.
This depends on its concentration.Household ammonia has a pH of 11.5 at a molarity of 3.16 x 10-12(-12 is the exponent!)
Phenolphthalein is colorless in acidic solutions with a pH below 8, and turns pink in basic solutions with a pH above 8. In solutions with pH values ranging from 2 to 6, phenolphthalein would remain colorless.
The pH scale is used to classify the strength of acid or basic solutions. On the pH scale, solutions with a pH less than 7 are considered acidic, solutions with a pH of 7 are neutral, and solutions with a pH greater than 7 are basic.
To accurately provide the range of pH values for specific solutions, I would need to know which solutions you are referring to. Generally, pure water has a neutral pH of around 7, while acidic solutions have pH values below 7 and alkaline (basic) solutions have pH values above 7. For example, strong acids can have pH values close to 0, while strong bases can reach pH values up to 14 or higher in concentrated forms. Please specify the solutions for a more detailed response.
A litmus indicator cannot distinguish between solutions with the same pH, such as two solutions both at pH 2, because it only indicates whether a solution is acidic or basic, not the specific pH value. Since both solutions at pH 2 will turn litmus paper red, the indicator will not provide any additional information to differentiate between them. To differentiate between solutions with the same pH, more precise pH indicators or pH meters would be needed.
Alkaline solutions have a pH higher than 7