After studying the color of litmus at different pH.
The simplest way is to use litmus papers. Acids turn blue litmus paper red; alkalis turn red litmus paper blue. Other ways include the use of indicators such as universal indicator or methyl orange.
A litmus paper is a indicator that is used to test for acids or bases
litmus paper is genrally used to verify whether a substance is acid or base
Blue litmus paper would be used and if the chemical is an acid the litmus paper would turn red.
Blue litmus turned into red by acids.So you have to blue litmus.
Because if you only use red litmus paper and the solution you tested kept the paper red, you would think that the solution would also make the blue litmus paper turn red too. But what if the solution was neutral? Then the blue litmus paper would stayblue instead of turn red. Thats why you need to use both blue and red litmus paper.
Litmus paper
well as we know if we want to test a substance to see if its a base then we use red litmus paper and for an acid we use blue litmus paper. So if we are using blue litmus paper that means we are obviously testing to see if we have an acid right? So if we see it turn pink then that means that are substance is an acid but it is not very strong and also has some of a base to it. If you want to see what i mean look up a PH scale. Hope this helped. :)
by using an indicator like litmus paper!!!
There are multiple ways to measure the acidity of water in a river or lake. One way is to use litmus paper. You buy it in a cylindrical tube. You did one end of the litmus paper into the solution you're testing. The litmus paper will change color, and then you match the color of the litmus paper with the color on the pH scale on the tube. Be careful, though, if the solution you're testing is a strong acid or base, the litmus paper can spontaneously catch fire when it dries! Another way to test the acidity of river or lake water is to use a pH electrode. These can be picked up at hardware stores, but usually cost about 100 bucks.
Without an advanced technical method they use pH paper for quick answer. A more accurate method is to use a pH meter.
pH papers are used to find pH of solutions, not litmus paper.