The pH scale is an inverse logarithmic representation of hydrogen proton (H+) concentration. Unlike linear scales, which have a constant relationship between the item being measured and the value reported, each individual pH unit is a factor of 10 different than the next higher or lower unit.
For example, a change in pH from 1 to 2 represents a 10-fold decrease in H+ concentration, and a shift from 1 to 3 represents a one-hundred-fold decrease in H+ concentration.
pH is a logarithmic scale used to specify the acidity or basicity of a solution. The pH scale ranges from 0 to 14, with lower values indicating acidity and higher values indicating basicity. pH = -log[H+], where [H+] is the concentration of hydrogen ions in the solution.
Well...zero isn't really the lowest number on the pH scale. To simplify things, we teach kids that the scale goes from 0-14, but in reality, a solution can have a negative pH. The pH is the negative log of the hydrogen concentration or -log[H+]. So for -log[H+] to be negative, log[H+] has to be positive; therefore, [H+] would have to be greater than one. A solution that has a negative pH is extremely acidic! For example, a solution with a hydrogen concentration of 2.2 M would have a pH of -log[2.2] = -0.342 The reason we use 0-14 in abstraction is because pH + pOH = 14
pH
Since pH is a logarithmic scale, each increase (or decrease) by 1 means 10 times, so the change of pH in a solution from 10 to 11 would be 10 times, 11 to 12 would be 10 times, and 12 to 13 would be 10 times, and (10)(10)(10) is 1000, so a solution with pH 13 is 1000 times more basic then a solution with pH 10
Each pH number is a (common) log of hydrogen ion concentration, thus pH 12 is 10 x 10 x 10x 10 (or 10000) less acidic than pH 8.
The pH scale is called a log scale because each unit increases or decreases logarithmically. What this means is that if you were to go from a pH of 7 to a pH of 8 you have increased your concentration of -OH ions ten fold or from a pH of 7 to a pH of 9 would be a 100 fold increase of -OH concentration. Incidentally, pH refers to a mathematical equation where p is the inverse log of H+ (acid/protons) concentration in solition. Thus we are measuring the inverse log concentration of H+ ions or simply put: pH.The equation looks like the following: pH = -log[H+]
pH is a logarithmic scale; because of the way calculus and maths works, graphing such a scale against a log results in a straight line.
Many scales such as sound and PH are log scales. The scale used to measure earthquakes is also a log scale. Whenever the data has a very wide range, a log scale might help.
pH is a logarithmic scale used to specify the acidity or basicity of a solution. The pH scale ranges from 0 to 14, with lower values indicating acidity and higher values indicating basicity. pH = -log[H+], where [H+] is the concentration of hydrogen ions in the solution.
The Ph scale doesn't have units it's a model to show where solutions rank based on the -Log of the concentration of H+ ions
pH above 7 till 14 is basic. pH of 14 is most basic
it is neutral. Water is a 7 on the pH scale
Well...zero isn't really the lowest number on the pH scale. To simplify things, we teach kids that the scale goes from 0-14, but in reality, a solution can have a negative pH. The pH is the negative log of the hydrogen concentration or -log[H+]. So for -log[H+] to be negative, log[H+] has to be positive; therefore, [H+] would have to be greater than one. A solution that has a negative pH is extremely acidic! For example, a solution with a hydrogen concentration of 2.2 M would have a pH of -log[2.2] = -0.342 The reason we use 0-14 in abstraction is because pH + pOH = 14
A pH over 7 is basic.
A soluble base is an alkali, so above 7 on the pH scale.
The pH of solution b would be 3. This is because the pH scale is a logarithmic scale, so solution b would have a pH that is 2 units lower than solution a, since it has 100 times the hydrogen ion concentration.
pH