Question

check the action of these solutions on litmus and find out he pH using a pH paper​

Answer 1

Answer:

Measuring with pH paper

Find the pH of a substance using pH paper. Dip the end of the pH strip into the chemical or substance you want to test. After a couple of seconds, remove the paper and compare the color of the pH strip to the color chart provided with the pH paper kit. Do not re-use a pH paper to retest or test another chemical. Always use a new pH strip.

Test pH Paper on Saliva

Test the litmus or pH paper using your saliva to test the colorchanges of the pH paper. Take two pieces of the pH paper (one pink and one blue). Place the paper in your mouth and remove after a few seconds. Determine whether your saliva is acidic or basic. If the paper changed from red to blue, this indicates that the saliva is basic. If the paper changes from blue to red, this indicates that the saliva is acidic. If nothing happened, the saliva is neutral.

Answer 2

Answer:

Litmus and pH paper contain a chemical that changes color as it makes contact with an acid or base. The paper will turn red in acids and blue in bases. Usually a color chart is provided with the pH paper in order for the user to determine the pH range of the indicator. Using paper to determine the pH is not as accurate as a pH meter, which provides results with the exact pH measurement; whereas the pH paper only results in a pH range.