An environmental technician collects a sample of rainwater. Back in the lab, hermeter isn't working, so she uses indicator solutions to estimate the. A piece of litmus paper turns red, indicating acidity, so she divides the sample into thirds and obtains the following results: thymol blue turns yellow; bromophenol blue turns green; and methyl red turns red. Estimate theof the rainwater.

Heat Capacity: The amount of heat energy necessary to boost the temperature of a body by a certain amount is known as heat capacity. The amount of heat in joules required to raise the temperature 1 Kelvin is known as heat capacity (symbol: C) in SI units.

Any substance's pH value is determined by a relationship. It is the negative log of the concentration of hydrogen ions in an aqueous solution. The following equation is used to express it:

$\mathrm{pH}=-\log [\mathrm{H}+]$

The logarithm is defined as the inverse of the exponentials in this case.

Acids tend to donate their protons, and bases tend to gain protons that are donated by acids.

INDICATORS:

An indicator is a chemical substance or organic dye that changes the colour of a solution when added to an acidic or basic solution. The pH value of a solution is indicated by an indicator.

Phenolphthalein, litmus paper, thymol blue, methyl orange, and other indicators are commonly used.

PAPER BY LITMUS:

When the colour of a blue Litmus paper changes to red, it means the solution is acidic. The pH of the solution is acidic (pH). The value of pH varies between 4.0 and 4.5.

Thymol blue, also known as thymolsulfonephthalein, is a chemical compound. It's a brown solution that's used as a marker. When thymol blue is added to a solution, it turns it yellow, indicating that the solution is acidic. The solution's pHwill range from 2.8 to4.5.

BROMOPHENOL BLUE:

In the pHscale, the pH value of the solution could be less than 4.0.

METHYL RED:

The IUPAC name for methyl red is 2 -(N, N-dimethyl-4-aminophenyl) azobenzene carboxylic acid. This indicator turns red when it is added to acidic solutions. The pH ranges between 3.0 to 4.4.

Therefore, the solution is clearly in acidic conditions based on these pH values. In this case, the exact pH value of the solution could be anywhere between 4.0 and 5.0.s defined as the inverse of the exponentials.