The PH paper soaks up the solution & tests the liquid, the pH paper will then change colour to show what the solution contains. Although if the paper stays the same colour it means the solution is nutral & safe.
It will have sour taste. When pH is measured using a pH metre it shows a value below 7. Or use pH paper to find pH of the acid solution.
Using a pH indicator such as litmus which displays a colour change based on the pH of the solution, or using a sold state digital probe which would give a numerical result on the display.
Some disadvantages of using pH paper is when the pH paper is exposed to air for too long it collects other molecules in the air and when a solution is put on top of the paper it mixes with the other molecules creating a new solution, throwing off the measurements and ruining the experiment.
See the Related Questions links for more information about pH.
Hydrochloric acid can be measured in units of concentration, such as molarity (moles per liter) or normality (equivalent grams per liter). It can also be measured using pH, which indicates the acidity or alkalinity of a solution, or by titration with a suitable base to determine its concentration.
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It will have sour taste. When pH is measured using a pH metre it shows a value below 7. Or use pH paper to find pH of the acid solution.
Suger solution made with water is homogenous so,nothing left, seperate with filter paper .
THE COLOUR of the litmus paper will not change as a salt solution is neutral
Using a pH indicator such as litmus which displays a colour change based on the pH of the solution, or using a sold state digital probe which would give a numerical result on the display.
The acidity or alkalinity of a solution, pH indicator.
The red litmus paper remain red in acidic solutions, under a pH=4,3 at 25 oC.
"Longhand" is a term to describe writing made using a pen to write on paper.
In most cases people would say that an ounce is an ounce. But gold is measured using troy weight and paper is weighed using avoirdupois weight. In this case, paper weighs more than the gold.
Some disadvantages of using pH paper is when the pH paper is exposed to air for too long it collects other molecules in the air and when a solution is put on top of the paper it mixes with the other molecules creating a new solution, throwing off the measurements and ruining the experiment.
Eratosthenes measured the size of Earth by using the Sun's angles, as well as a bit of geometry.