The pH scale measures how acidic or basic a substance is. The numerical value of this scale is the negative base 10 logarithm of the concentration of hydrogen ions.
negative logarithm of hydrogen ion concentration
The "H" stands for Hydrogen, in this case the hydrogen cation (H+). The "p" is shorthand for "negative logarithm thereof." Together, the term refers to the negative logarithm of the hydrogen cation concentration, which determines the acidity/basicity of the solution in question.
The negative logarithm of the hydrogen ions activity is a measure of pH in the solution.
the p stands for "negative logarithm" or -log, a mathematical function. the H is the chemical symbol for hydrogen, in the case it represent the concentration of hydrogen ions (H+) in a solution. pH is the negative logarithm of the hydrogen ion concentration or -log[H+]. This is a good measurement of acidity or alkalinity as acids increase the H+ concentration and bases decrease it.
pH is the negative logarithm of the hydrogen ion activity in a solution.
The hydrogen ion concentration. The pH is the negative logarithm to base 10 of the hydrogen ion concentration.
pH of a solution is the negative logarithm of the hydrogen-ion concentration
the negative logarithm of hydrogen iron concentrated Or Potential Hydrogen (But you will get the lowest mark if you answer with this)
pH is used as a measurement of the concentration of hydrogen ions in a solution. pH is the negative logarithm of the hydrogen ion concentration.
No, the pH is the negative logarithim to base 10 of the Hydrogen Ion concentration.
Logarithms of numbers less than one are negative. For example, the logarithm of 1/2 will be negative.
This is not a valuable question, impossible to answer. 'No Value' question
A pH of 10 means that there are 1x10-10 moles/liter of H+ in the solution. pH is the negative logarithm of the hydrogen ion concentration.
pH is the negative logarithm of the hydrogen ion concentration; so an increase in hydrogen ion concentration give a reduction in pH. A reduction in hydrogen ion concentration causes an increase in pH.
By definition, "pH" is the negative of the logarithm to the base 10 of the hydrogen ion concentration in moles per liter. Therefore, the answer to the question is the antilogarithm of -9.75. To find a numerical value, rewrite the number -9.75 as 0.25 - 10. The antilogarithm of 0.25 is about 1.78; therefore, the hydrogen ion concentration is about 1.78 X 10^(-10), to the justified number of significant digits.
Since pH is the negative of the log (base 10) of the hydrogen ion concentration, as the pH decreases, the log of the concentration becomes less negative. A less negative logarithm means that the number you are taking the log of has been increasing towards 1 - which means that the hydrogen ion concentration increases as pH decreases.
The pH value denotes the negative logarithm value of the hydrogen ion concentration present in the solution. Hence lower amount of hydrogen ion concentration denotes a high value in the pH scale.
3: The negative of the logarithm (base 10) of the concentration. The logarithm of 1 is 0 and the logarithm of 10-3 is -3; the logarithm of their product is the sum of their individual logarithms, -3 in this instance, and the negative of -3 is +3.
Negative numbers don't have logarithms.
A measurement of hydrogen ion concentration is pH, which equals-log[H+], which is the negative logarithm of the hydrogen ion concentration (actually activity, but that is usually ignored). This quantity can be measured with a hydrogen electrode (as found in a pH meter), which is a type of ion selective electrode.