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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.

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13y ago

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How can you determine that you have an acid by using litmus paper?

An acid turns the blue litmus paper red.


What do acids and bases do to litmus paper?

An acidic solution will change blue litmus paper to red and basic solutions change red litmus paper to blue


I am the type of paper used to determine if a chemical is acid or alkali?

Litmus paper is used to determine if a chemical is acid or alkali. Litmus paper turns red in acidic solutions and blue in alkaline solutions.


Does a base turn blue litmus paper blue?

yes a blue litmus paper turns red when put into an acid


Does the litmus paper test determine if an aqueous solution is basic?

Yes, the litmus paper test can determine if an aqueous solution is basic. If the litmus paper turns blue, it indicates that the solution is basic. If it remains red, the solution is acidic.


What color does litmus paper change if base or paper?

When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue. By comparing the color the litmus paper changed to by a chart, you could determine how strong or weak that acid or base is.


What is lithmus paper?

it is litmus not lithmus . it is a natural indicator . it is a strip of paper either red or blue in colour . it is used whether a solution is acidic or basic in nature. a basic solution turns red litmus to blue and an acidic solution turns blue litmus into red


What colour will litmus paper go when dipped in washing up liquid?

As soap is alkaline in nature, it turns red litmus paper blue


What color would the litmus paper turn if it was blue?

Blue litmus paper turns red in acid red litmus paper turns blue in alkali.


Which litmus paper do you use to identify an acid and how does it react?

Online science class does not mean you can just google for answers. Read your textbook!


Why did you need to test with both red and blue litmus paper?

Red litmus paper turns blue in basic solutions, while blue litmus paper turns red in acidic solutions. By using both types of litmus paper, you can determine if a solution is acidic if blue litmus turns red or basic if red litmus turns blue. This allows for a more accurate determination of the pH of a solution.


What color does litmus paper in a base?

Litmus paper turns blue in a base.