Phenolphtalein indicator is colorless in dilute acid solution and basic solutions will turn its color (puplish) red.
A pH indicator will test a substance to determine the alkali or acidity, with 7 being neutral on the pH scale.
Electrical Conductivity.
Scientific tests can help determine substances that appear similar but react differently under the same circumstances. By observing the reactions of the substance using an experiment, you can determine what that substance is made from.
Advantages to using pH strips is that the user does not have to determine which indicator to use for a sample, they are inexpensive and it's a faster way to receive results than using indicators. Disadvantages to using pH strips is that the accuracy is lower and the solution should be only clear and colorless.
You can observe physical, chemical, and characteristic properties of a substance and can be used to determine the usefulness of a substance by, giving us information about the substance usually using our 5 senses which are physical properties. Or being able to describe the substances ability to undergo changes to its composition to produce one or more new substances, chemical property. Or even just being able to identify whether or not the substance is pure or not can help us determine if the substance is hazardous or not. two other properties I did not mention were the qualitative and the quantitative properties.
A pH indicator will test a substance to determine the alkali or acidity, with 7 being neutral on the pH scale.
The pH of a substance can be found by using a litmus indicator.
Electrical Conductivity.
an indicator is capable of determining if a substance is basic or acidic or neutral. if you are just looking for if it is a basic or acidic. then you could you could use red litmus or blue litmus. if you are looking for the pH of a substance try using: red cabbage indicator phenolphthalein i hope i answered your question!
If a substance is not pure, the density may, or may not, change, compared to the pure substance.
Scientific tests can help determine substances that appear similar but react differently under the same circumstances. By observing the reactions of the substance using an experiment, you can determine what that substance is made from.
by using an indicator like litmus paper!!!
Below 100 °C.
Advantages to using pH strips is that the user does not have to determine which indicator to use for a sample, they are inexpensive and it's a faster way to receive results than using indicators. Disadvantages to using pH strips is that the accuracy is lower and the solution should be only clear and colorless.
limitation of heating element
The structure
Yes, the indicator react with the solution.