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you dip both papers in the solution, one at a time. if they dont change colour, then they are neutral because acid turn blue litmus paper to red and alkalis turn red litmus paper to blue.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoto check for both acids and akilis
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Why is it important to use blue and red litmus paper to determine pH?
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.
What is the positive and negative effects of acids in the home and in the environment?
Acids turn litmus paper red, and alkalis turn it blue. ... Acid rain can have terrible effects on a forest. The acid takes away important minerals that the forests need to survive
Which stores sells litmus paper?
Nobody sells!......Litmus Paper..... locally near you anymore.... Why? Because, we as a society put our heads up our cabooses and want to rely on the internet. When we quit supporting our local businesses this is what we get.... SQUAT.... Great job America.. Soon we will have to order toilet paper when we need it... see how that works for you..
Can a half black and half white baby look only white?
Blue eyes is a recessive trait. Two parents that do not have blue eyes can get children with blue eyes, provided that both parents have ancestors with the gene for blue eyes. None of the parents, or even their grandparents, need to have blue eyes themselves for this to happen. So certainly a person with one white and one black parent can have a blue-eyed child.
Where do you connect the blue wire on the tachometer for the bulb?
The blue wire is usually just an auxiliary wire. The blue wire does not need to be connected. Tape the end of the blue wire off.
What COLOR of litmus paper do you need to test pH level?
Blue litmus paper
Why is it important to use blue and red litmus paper to determine pH?
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.
Why do you need to test solutions with Blue litmus paper and red litmus paper?
So you can tell if the solution is an acid or a base
How do you use litmus paper?
A litmus paper is used to test the alkalinity or acidity of any substance. In the presence of an acid, a blue litmus paper will turn red and a red litmus paper turns blue to indicate the presence of alkaline.
What is used to identify acids and bases?
an acid is a material or substance that is sour and can change blue litmus paper red a base is a material or substance that is bitter (it sometimes ) and can change red litmus paper blue. Litmus paper can tell an acid from a base Lemon Juice is an acid coffee is a base.
Why does the litmus paper need to be damp?
so that the gas can dissolve onto it
What is the positive and negative effects of acids in the home and in the environment?
Acids turn litmus paper red, and alkalis turn it blue. ... Acid rain can have terrible effects on a forest. The acid takes away important minerals that the forests need to survive
What can we use as an indicator for acids and bases?
An indicator changes colour in the presense of acidic and basic solutions. It will be one colour for acidic solutions, and another color for basic solutions. With some indicators, the intensity of the color increases with the intensity of the acidity of 'basic-ness' of the solution. Cabbage is a natural indicator. An Acid turns pink and a base turns greenExamples of acid-base indicators: 1.) Litmus Paper acidic solutions will turn the blue litmus paper to red while basic solutions will turn the red litmus paper to blue2.) Congo Red basic solutions will change the color of the entire solution into blueThere are many indicators, some of them are :-Solution of red cabbage, or rose flower, strawberry, or cherry.These turn lighter(yellowish) in the presence of an acid, and more darker(violet) in the presence of a base.-Phenolphtaline : It is a chemical solution that remains colour-less in the presence of an acid, and violet in the presence of a base.-Red/Blue Litmus Paper : the RLP turns blue in the presence of a base, and the BLP turns red in the presence of an acid.And finally you can use a pH meter or pH paper to indicate the indentity of the solution.
How do you make a model on why the oceans blue?
First get a glass bowl filled with water and blue paper. Place the blue paper above the water. If you need to, tape the blue paper to the bottom of a table. Place the glass bowl of water under the table or beneath blue paper. This is all you need to do. EXPLANATION The blue paper is the sky. The bowl of water is the ocean. The sky is blue. The ocean acts like mirror. It reflects things. That is why you see your reflection in a pool of water. The bowl has to be glass be cause if the bowl is colored, the water will reflect the color.
Which stores sells litmus paper?
Nobody sells!......Litmus Paper..... locally near you anymore.... Why? Because, we as a society put our heads up our cabooses and want to rely on the internet. When we quit supporting our local businesses this is what we get.... SQUAT.... Great job America.. Soon we will have to order toilet paper when we need it... see how that works for you..
Is methyl orange an indicator?
Phenolphtalein remains colourless in acids, but turns pink in bases Methyl Orange indicator turns pink in acids and yellow in bases Acids turn litmus paper red bases turn litmus paper blue irrespective of which colour litmus paper is used
How do you test if chlorine gas is present?
Chlorine can be in different states (SOLID, LIQUID,GAS) but with another compound. some of the tests are as follows... 1) Is green-yellow in colour. (GAS) 2) Has a pungent choking smell. (GAS) 3) Will turn moist litmus or universal indicator paper red, (Solid,Liquid) and then bleach it white. 4) Will put out a lit splint. (GAS)
