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An accurate measurement is made with a pH-meter; pH-papers make only approximative determination.
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Why does universal indicator not always give an accurate result?
Universal indicator is just that - an indicator. It is not intended as an accurate measurement system.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
How would you determine the pH of a solution?
The easiest way is to use a pH meter. Dip it into the solution and read off the answer. If you don't have a pH meter than it gets harder. Colored indicators on paper strips can give you a rough idea of the pH by the color they turn when dipped in the solution. The same sort of dyes can be obtained in liquid form as well. If you want to get an accurate pH and you don't have a pH meter you can use a process called titration, where you compare your solution with a solution with a known pH. Its slow, its complicated. Buy a meter.
What the chemical test that can carry out to show that the liquid is an acid solution?
Add chalk (Calcium carbonate) if it is an acid the chalk will 'fizz' as it reacts and it will give off carbon dioxide gas. Or just use a universal indicator solution or test with litmus paper.
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
Why does universal indicator not always give an accurate result?
Universal indicator is just that - an indicator. It is not intended as an accurate measurement system.
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 might a scientist prefer to use Universal Indicator rather than a different indicator like litmus?
Litmus only differentiates between acidic and alkaline solutions. It does not give an accurate value of the degree of acidity of alkalinity. Universal Indicator can help measure the pH of the given solution as it does not just change from red to blue and vice versa, but in solution has a range of colours.
Does an electric food scale give an accurate reading?
Assuming the scale is new, and has been calibrated properly, it should give an accurate reading. To be sure, compare weights on an electric, and traditional scale.
What method may not give an accurate or exact solution?
using a calculator.
Which type of thermometer give the least accurate reading of all?
disposable thermometers
What will happen to the fuel gauge reading when you unplug a wire from the fuel gauge?
The fuel gauge will no longer give an accurate reading.
What is china rose-indicator?
When china rose petals are kept in warm water they give out colour after some time. This coloured solution can be used as china rose indicator.
What provides the most accurate volume?
The glassware that provides the most accurate measurement of volume is the measuring cup. A glass measuring cup has lines on it to give an accurate reading.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
Are tire size calculators accurate?
Yes it should give you a accurate reading. And if you have any doubts you can take it to a local shop and have them measure it for you which should be free of charge.
How would be the reading differ if the screw gauge is used instead of vernier calliper to measure the thickness of glass plate?
Verniers give you a less accurate approximation of the thickness, whereas a micrometer can give a more accurate measurement, often by 100 orders more accurate.
