13.7
take the negative logarithm
13.7
p = -log[H+] = 12.4
pH s calculated as the negative log10 of the hydrogen ion concentration. So log10 of 0.000724 = -3.14 so pH= 3.14
1.15 (apex i gotchu)
When a pH level is 7.0, it is defined as 'neutral' at 25°C because at this pH the concentration of H3O+ equals the concentration of OH− in pure water. - Wikipedia
If an aqueous solution has a pOH value of 10.7 and is at standard temperature and pressure, the pH value is 14 - 10.7 = 3.3. From the definition of pH, this means that the logarithm (to base 10) of the molar concentration of H+, [H+] is -3.3. This can be written as +0.7 - 4. The antilog of 0.7 is 5, to the justified number of significant digits. Therefore, [H+] = 5 X 10-4.
p = -log[H+] = 12.4
pH = -log(hydronium concentration) [Hydronium is H3O.-log(1 x 10-9) = 9
The hydroxide ion concentration equals the hydronium ion concentration at a (neutral) pH of 7
Yes, if both solutions are at 25oC then in both solutions this is valid: pH + pOH = 14.0
pH s calculated as the negative log10 of the hydrogen ion concentration. So log10 of 0.000724 = -3.14 so pH= 3.14
isotonic solution
1.15 (apex i gotchu)
1/1011.27 = 5.370 x 10 -12 ============
pH means -log[H], [H] is the concentration of hydrogen ion. and the concentration of hydrogen ion (also know as proton) is depend on the concentration of acid solution. the higher the proton concentration, the solution is more acidic, pH value lower. a "solid" acid will not change the colour of "dry litmus paper", because the is no water present, no hydrogen ion are present.
This would depend on the concentration of the solution, assuming that the powder is soluble.
No, they don't react with each other in aqueous solution and on heating nitrate becomes decomposed.
pH = 14 is basic pH = 7 is neutral pH - 1 and 2 are acidic; pH = 1 is more acidic than pH = 2 Therefore a solution at pH 1 has higher concentration of H+ than at pH 14