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pH is the measure of acidity/alkalinity, 7 being neutral pH, 1 being typically regarded as the most acidic and 14 being typically regarded as the most alkaline. The pH is usually measure using coloured titration reaction, litmus paper or a digital pH meter.
And now for the science. The scale for pH i clearly a strange number for a start, up to 14. The reason for this is that pH is a log scale, in truth it is a negative log scale. It was designed the way it is because the concentration of H ions was so small that is was impractical to write all the 00000s out every time. To find the pH from a concentration of hydorgen ions is fairly simple, -log[H]. No really that's it. To find it from the concentration of OH ions is a little trickier and im no chemist so i don't remember.
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A substance with a pH of 11 is what times more what than a substance with a pH of 8?
A pH of 11 is 1000x more alkaline than a pH of 8. The pH scale is a logarithmic scale. This means that in a pH scale, a change of one whole number represents a tenfold change in the pH. So a pH of 8 is 10x more alkaline than a pH of 7.
What is a substance with a pH of 6?
The pH scale runs from 0 to 14. Pure water has a pH of 7, the half-way point of the pH scale. A pH between 0 and 7 indicates that a solution is acidic, and the lower the pH, the higher the acidity. A pH between 7 and 14 indicates that a substance is alkaline, and the higher the pH, the higher the strength of the alkali.
Does the pH of the medium change during sterilization?
yes. The PH will changer We have to adjust the pH after sterilization by filtration
Function of pH meter?
A pH meter measures the pH of a solution utilizing a glass electrode and a voltmeter.
What pH do neither enzymes work in?
at a ph of 13
Were does pH come from?
The pH is the measure of the hydrogen ion activity in solutions. The value of pH determine the acidity or alkalinity of a solution.
Where does the term pH come from?
power of Hydrogen
Where did the term pH come from?
Possible 'power of hydrogen' as pH refers to the activity of hydrogen ions in a solution.
How do you determine the pH of each solution?
acidic, neutral, or basic. Salts that form from a strong acid and a weak base are acid salts, like ammonium chloride
What is the definition for Plant Acid?
Plants that demand a soil pH lower than 6.
How do you measure the pH of a river?
all you need is some pH tape/paper. it should come with a color wheel, you dip the pH paper in the water and match the color and it should tell you the number
What Is the pH of kitchen and bathroom cleaner?
come on people i need to know i am really stuck wiv ma omework
Does a pH of 3 have a greater hydrogen ion concentration than a 9 pH?
pH come from "pondus hydrogenii" or "potential hydrogen." It measures the concentration of hydrogen ions. Mathematically, pH = -log[H+] Therefore, to answer your question, a pH of 3 will have a 10-3M of hydrogen ions where as the pH 9 solution will have a 10-9M of hydrogen ions. The lower the pH the higher its H+ concentration and the more acidic it is. (A pH of 9 is actually basic.)
How does a large change in temperature or pH affects proteins?
They come apart and lose there shapeA large change in temperature or ph will cause protiens to come apart and lose their shape.
What happen when stomach acid and sodium bicarbonate come together in the small intestine?
When stomach acids, like HCl and pepsin, come in contact with sodium bicarbonate the pH level become more alkaline and less acidic. So the pH level rises.
How do you use indicators to measure acidity and basicity?
Many different pH indicators exist, covering different ranges of acidity and alkalinity. Every pH indicator should come with its color guide to help determine the approximate pH level of whatever's being tested. The best way to determine the color's pH indication is a spectrometer.
What are two ways that science measures pH?
There are several dyes that change color with pH, and come with a chart showing what color equates to what pH. These are better to use than litmus paper because, while litmus will show you whether the solution under test is acidic or alkaline, these newer dyes will show you the pH.Dye-based pH tests have a big problem: they're only accurate on colorless solutions. This is why pH meters, which test pH electronically, are so good - they don't care what color your material is.
