Iodine solution is an efficient indicator for starch. It will go from a light brown colour to a black colour if starch is present and will stay light brown if no starch is present.
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An indicator is a chemical which changes color in a narrow pH range.
It is most commonly used in a process called titration, in which an acid is added to a base, or vise versa.
The indicator is used to tell you when a certain point in the titration process is reached. This point can vary depending on the titration being carried out.
Example: A 100mL solution of 0.1 Molarity NaOH is being titrated with a 0.1 Molarity HCl solution. When 100mL of HCl are added, the pH of the solution will equal 7. Bromthymol Blue, an indicator which changes color in the 6-8 pH range is used in this case, because we can see when the pH is equal to 7.
Indicators are added to the titration medium and show the endpoint of the titration
An indicator works to shows when there is a change in something. Indicators can show the presence of certain chemicals for example when dipped in fluids.
If you think to pH an indicator is used to measure the pH.
weak base or acid
pH strips are used to determine whether a solution is acidic or basic
A pH meter
their are indicators that can.
A pH indicator paper can be used to tell if a solution is acidic or basic and the rough pH range can be known
Universal pH paper is a type of paper used to find the pH level of a solution and is an indicator.
they are used to, determine the pH of a solution. ~natalia !
pH strips are used to determine whether a solution is acidic or basic
It is a chemical solution used for knowing the pH of a substance. Eg. You mix a drop of Universal indicator solution with approx 5 mL of the substance whose pH you want to know.You can compare the color with a standard pH chart and know the pH.
indicator
Phenolphthalein is used as an indicator because the color of the solution is changed according to pH.
A pH indicator is used only to measure the pH of the solution.
A pH meter
no
their are indicators that can.
Ph meter
pH meter
A pH indicator paper can be used to tell if a solution is acidic or basic and the rough pH range can be known