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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 is the best way to check the strength of sanitizing solution?
The best way to check the strength of a sanitizing solution is to use a test kit specifically designed for that purpose. These kits typically involve dipping a test strip into the solution and comparing the color change to a chart provided with the kit. This will give you an accurate reading of the concentration of the sanitizing solution.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
The indicator methyl orange can be used in the titration of sodium carbonate solution against hydrochloric acid to give a complete neutralization. At the endpoint, when all the carbonate ions have reacted to form bicarbonate ions, the solution will turn from yellow to pink.
Which of the two indicators will give a more accurate results?
The accuracy of results depends on the specific context and the underlying data. It's important to consider the limitations and assumptions of each indicator before determining which one is more accurate. Conducting sensitivity analysis or comparing results with a third indicator can help validate the findings.
How would you determine the pH of a solution?
You can determine the pH of a solution using a pH meter or pH strips. pH meters measure the hydrogen ion concentration in a solution, while pH strips change color based on the acidity or alkalinity of the solution. By comparing the color of the strip or the numerical reading on the meter to a pH scale, you can determine the pH of the solution.
What will give the most accurate pH reading?
A calibrated pH meter will give the most accurate pH reading. Regular calibration ensures that the pH meter is accurately measuring the pH level of a solution.
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.
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.
How does bicarbonate indicator works?
Bicarbonate indicator works by changing color in response to the pH level of a solution. When added to a solution, the indicator changes color based on the amount of bicarbonate ions present, which can give an indication of the solution's pH level. This color change is due to the property of the indicator molecule to shift its absorbance spectrum based on the pH of the solution.
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.
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.
What method may not give an accurate or exact solution?
using a calculator.
How do you make phenolphthalein indicator for titration from powder?
To make phenolphthalein indicator solution from powder, dissolve a small amount of phenolphthalein powder (about 0.1g) in 100mL of ethanol or 95% ethanol and 5% water solution. Stir the mixture until the powder is completely dissolved. This will give you a pink indicator solution suitable for titrations.
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 is the best way to check the strength of sanitizing solution?
The best way to check the strength of a sanitizing solution is to use a test kit specifically designed for that purpose. These kits typically involve dipping a test strip into the solution and comparing the color change to a chart provided with the kit. This will give you an accurate reading of the concentration of the sanitizing solution.
