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I suppose that the preparation procedure is more difficult.
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What is the specific name of universal indicator?
A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or basicity of solutions. A universal indicator is typically composed of water, propan-1-ol, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt.
What does an indicator have to have to be an indicator?
An indicator has to be able to change colors as the pH of the solution approaches ithe indicators pH range. For example, universal indicator starts out as a yellowish color in an acidic solution, then as it grows more neutral(more towords 7) it becomes a greener color, and as it grows more basic, it starts to become a blue color. Universal indicator will give you an indication of HOW acidic or alkaline a solution is, depending on the exact color. Litmus can only turn red or blue and can't distinguish between differing amounts of acid or base
Is universal indicator always the best indicator?
No, not always. Some indicators are better suited for certain ranges; UI will provide a rough indication across a huge range, but other indicators can be more accurate across a small range, and this is when they are used.
How do you measure the acidity of acid rain?
You add universal indicator and then compare the colour it turns to an example ph scale. The redder the Ui the more acidic it will be, if it is green it will be neutral and if it is blue/purple it will be alkali.
Can red litmus paper turn green in a neutral solution?
no because if the solution is neutral the litmus paper is still in its color
Why is a universal indicator more useful than litmus paper for measuring pH in some applications?
this is because it is more specific(Y):)
A substance that directly determines the acidity or alkalinity of a fluid?
Use a universal indicator or litmus paper. Litmus paper will turn red in acidic conditions and blue in alkali conditions. Universal indicator can give a more accurate PH reading than litmus paper.
Why is a universal indicator better than a litmus?
coz universal indicator tells you whether its a strong or weak acid or alkali but litmus paper only tells you whether the sunstance is acid (red) or alkali (blue)
How do you test pH levels of water?
Universal indicator or litmus paper are the most common methods. You can get pH paper...the color of the paper correlates to certain pH's. pH paper is more accurate than litmus paper.
What is litmus solution?
yes it is
Why is the universal indicator better than other indicators?
Because universal shows how strong or weak a substance is. Litmus just shows if its Alkaline or Acid. ps a 12 yr old wrote this.
Is the universal indicator or phenolphthalein is more accurate?
THe universal indicator is more accurate as it can detect different ranges in the pH, whereas phenolphthalein only changes at a ph of 8.0
How do you recognize an acid?
It is identified by using a 'Universal Indicator' or 'litmus paper'. If you are using a universal indicator, it will go red, orange or yellow. You should use blue litmus paper when in contact with acid, will change colour to red.
How are universal indicators useful to scientist?
An Universal Indictator is more helpful because it shows the exact amount of acidity. Other indictators (example the red and blue litmus) just indicates whether or not the solution is acidic. The universal indicator gives you a specific color to which you can match a pH number therefore, telling you how acidic the soultion is.
What is the specific name of universal indicator?
A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or basicity of solutions. A universal indicator is typically composed of water, propan-1-ol, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt.
Is a universal indicator a mixture of 4 different indicators?
no it is more than 4
Why is litmus paper called a rough indicator?
It is called a rough indicator because it only gives an answer for one of two things: is this an acid or a base. More information will be needed as to what acid or base is it.
