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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.
pH is a measure of the acidity or basicity of a solution and is influenced by the concentration of hydrogen ions (H+) present in the solution. It is calculated using the formula pH = -log[H+], where [H+] represents the concentration of hydrogen ions in moles per liter. pH can be measured using a pH meter or indicators to determine whether a solution is acidic (pH < 7), neutral (pH = 7), or basic (pH > 7).
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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.
A substance with a pH of 11 is what times more what than a substance with a pH of 8?
A substance with a pH of 11 is 1000 times more basic than a substance with a pH of 8. This is because the pH scale is logarithmic, with each unit representing a tenfold difference in hydrogen ion concentration.
What is more acidic a pH of 2 or 3?
A pH of 2 is more acidic than a pH of 3. The pH scale is logarithmic, so each unit change represents a tenfold difference in acidity. This means that a pH of 2 is 10 times more acidic than a pH of 3.
Which has the greater concentration of hydrogen ions a substance with a pH of 5 or a substance with a pH of 4?
A substance with a pH of 4 has a greater concentration of hydrogen ions compared to a substance with a pH of 5. The pH scale is logarithmic, so each decrease in pH by 1 represents a tenfold increase in hydrogen ion concentration.
What is the enzyme's optimum pH?
The enzyme's optimum pH is the pH at which it functions most effectively, usually around pH 7 for many enzymes. pH values either higher or lower than the optimum pH can denature the enzyme and decrease its activity.
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 pH of kitchen and bathroom cleaner?
come on people i need to know i am really stuck wiv ma omework
How do you measure the pH of a river?
To measure the pH of a river, you can use a pH meter or pH test strips. Collect a water sample from the river and follow the instructions provided with the pH meter or test strips to obtain a pH reading. Remember to calibrate your pH meter before taking measurements.
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.
Where does perm lotion come on the pH scale?
Perm lotion typically has a pH range of around 9 to 9.6, which is considered alkaline. This high pH level helps to break down the disulfide bonds in the hair, allowing it to be reshaped during the perming process.
Why pH for eye drops is 7.4?
The pH of 7.4 for eye drops is chosen because it matches the pH of tears, which are around 7.4. This helps to minimize irritation or discomfort when the drops come into contact with the eyes. Maintaining a pH similar to that of tears also helps to maintain the natural environment of the eye's surface.
Does a pH of 3 have a greater hydrogen ion concentration than a 9 pH?
Yes, a pH of 3 has a higher concentration of hydrogen ions compared to a pH of 9. The pH scale is logarithmic, so each unit change represents a tenfold difference in hydrogen ion concentration. A pH of 3 is ten times more acidic (higher hydrogen ion concentration) than a pH of 4, and 1000 times more acidic than a pH of 6.
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.
