pH=-log[H+] Where H+ and H3O is interchangeable. so with a pH=7.5 that means you have a [H+]= 10^(-7.5) If you increase the hydrogen ion concentration by 100 you get [H+]=100*10^(-7.5)=10^(-5.5) which gives you: pH=5.5
The pH value is (in layman's terms) the negative logarithm of the H3O+ ion concentration, i.e. a pH of 9.5 means the concentration of Hydromium ions is 10-9.5 mol/l. Multiplied by 1000, the concentration would be 10-6.5 mol/l, which means a pH of 6.5.
2 .
Becuase when the concentraion of the H3O increases the pH decreases.
Every point of pH corresponds (inversely) to a factor of ten, of H+ concentration, so increasing it by 100 would change 7.5 to 5.5 pH.
1.2
11.5
Increased 10 times. Note that hydronium is not the only solvated species of H+ present- it is better to talk of H+ aq- pH is a measure of [H+] however solvated.
concentration of OH- is 100 times greater than what it was at PH 5
Each step in pH represents a 10x concentration difference of H+ (protons). From pH3 --> pH5, there are 2 10x concentration differences of H+. Therefore, there is a x10^-2 difference Formula is: pH=-log (base 10) [H+]
100 times
A factor of 10 is the difference in a pH of 4 and a pH of 5 regardless of what the solution is.
Increased 10 times. Note that hydronium is not the only solvated species of H+ present- it is better to talk of H+ aq- pH is a measure of [H+] however solvated.
The pH of a solution with a hydronium ion concentration of 2.5 micro moles per liter can be calculated using the following formula: [ \small \text{pH} = -\log(\text{[H}_3\text{O}^+]) ] Given the concentration of hydronium ions, we can plug in the value: [ \small \text{pH} = -\log(2.5 \times 10^{-6}) ] Calculating this: [ \small \text{pH} = -\log(0.0000025) = 5.60 ] Therefore, the pH of the solution is approximately 5.60
Your soda having pH value of 3 or 4 will have a 10,000 or 1000 times greater H3O+ concentration than pure (distelled) water (pH=7), and even an extra factor 10 times when compared to tap water (pH=8).
The pH of a solution measures the hydrogen ion concentration in that solution. A small change in pH represents a large change in hydrogen ion concentration. For example, the hydrogen ion concentration of lemon juice (pH of 2.3) is 63 times greater than that of tomato juice (pH of 4.1), and 50,000 times greater than that of water (pH of 7.0). mustki2005@yahoo.comNigerian
The concentration of DDT in the fish is 430,000 times greater than the concentration of DDT in the water.
concentration of OH- is 100 times greater than what it was at PH 5
acid
A lower pH means more hydronium; each decrease by 1 means the concentration is increased tenfold. You would expect to find fewer hydrogen ions in the pH 6 solution (1000 times fewer ions).
3 phAnswer:pH is a logarithmic scale. A solution with a pH of 2 has an H+ concentration 1000 times higher than a solution with a pH of 5. Officially pH is the negative logarithm of the molar concentration of the H+ ion in the solution.
Each step in pH represents a 10x concentration difference of H+ (protons). From pH3 --> pH5, there are 2 10x concentration differences of H+. Therefore, there is a x10^-2 difference Formula is: pH=-log (base 10) [H+]
The concentration of H+ has increased 10-fold (10X) compared to what it was at pH 9 and the concentration of OH- has decreased to one-tenth (1/10) what it was at pH 9.
1/103 = 0.001 M ========( pH 3 ) 1/105 = 0.00001 M ============( pH 5 ) As you see, a pH of 3 has a 100 times concentration of 5 pH ( 10 * 10 devalued ) This is the scale; logarithmic.