0
A solution has a pOH of 4.5 What is the hydroxide ion concentration of this solution?
Wiki User
∙ 12y ago
[H3O+] = 10-pH = 10-(14.0-pOH) = 10-(14-7.4) = 10-(6.6) = 2.5 x 10-7 mol/L
Wiki User
∙ 12y ago
Wiki User
∙ 12y ago[H3O+] = 10-pH = 10-(14.0-pOH) = 10-(14-11.1) = 10-(2.9) = 1.3 x 10-3 mol/L
Wiki User
∙ 12y ago[H3O+] = 10-pH = 10-(14.0-pOH) = 10-(14-1.3) = 10-(12.7) = 2.0 x 10-13 mol/L
Wiki User
∙ 12y ago[OH-] = 10-pOH = 10-(9.9) = 1.3 x 10-10 mol/L
Wiki User
∙ 12y ago[OH-] = 10-pOH = 10-(4.5) = 3.2 x 10-5 mol/L
Wiki User
∙ 12y ago[OH-] = 10-pOH = 10-(6.6) = 2.5 x 10-7 mol/L
Wiki User
∙ 15y ago7.9 x 10-5
Wiki User
∙ 15y ago4.1
Add your answer:
Earn +20 pts
What is the pH number of sodium hydroxide?
Sodium hydroxide does not have a pH number. The pH of a solution of sodium hydroxide depends entirely on the concentration of it in that solution. To learn how to determine the pH of a sodium hydroxide solution, see the Related Questions links.
What is the pH of a solution with a hydroxide ion concentration of 3.7 x 10-5?
At 24C, the ionization product of water is 1.000 X 10-14. Therefore, the sum of pH and pOH is 14.0. pOHis 5 - 0.568 or about -4.33, and the pH must be 14.00 - 4.33 or 9.7, to the justified number of significant digits.
Does a pH value signify certain number of hydrogen or hydroxide ions?
"pH" is a convention used as a convenience. It indicates how acidic (or basic, that is, alkaline) a solution is. It is the negative logarithm of the hydrogen ion concentration, usually the latter is expressed in moles (or millimoles) per liter. Moles per liter is, of course, what we call "molarity." pOH is used in the same way, indicating the concentration of hydroxyl ions. Generally, Concentration of hydrogen ions + the concentration of hydroxyl ions = 10-14 A neutral solution has equal numbers of H+ and OH-
What is the pH of a 0.0001 M solution of potassium hydroxide?
potassium hydroxide: KOH you'll need the Ka of it, Ka = [OH-][K+] / [KOH] ; OH and K have the same concentrations, so they're equal, so they can be represented by x. when you have the concentration of OH then you multiply it by -log[OH-], but then you'd have pOH, so just do 14-[-log[OH-]
Is the solution of ammonium chloride acidic or basic?
Assuming that the solvent is water, then NH4Cl (aq) is weakly acidic. This is because the Ammonium ion is Bronstead-Lowry acidic: it can donate H+ to give a neutral NH3 molecule. NH4(+) + H2O <----> NH3 + H20 + H(+) (Reversible reaction) If NH4Cl (ammonium chloride) is added to the solution, this will increase the concentration of NH4+. Since there is greater concentration of NH4(+), more H(+) ions will be released into solution, decreasing the pH, increasing the pOH, and thus making the solution acidic. Therefore a solution of any ammonium salt in water, not just ammonium chloride, is weakly acidic.
How does the pOH differ from pH?
pOH happens to be the negative log of hydroxide ion' s concentration while pH is the negative log of hydrogen ion's concentration. pH is used to measure the acidity or alkalinity of a solution.
How does the POH scale form PH scale?
pH + pOH = 14 pH is a measure of the hydrogen ion concentration, [H+] pOH is a measure of the hydroxide ion concentration, [OH-] pH = -log10[H+] pOH = -log10[OH-]
Calculate concentration of hydroxide ion with given pH?
Ist step, calculate pOH value by using formula pH + pOH = 14 2nd step, pOH = -log[OH], [OH] = - Antilog of pOH
How does the concentration of H plus and OH- ions determine pH?
pH = - log([H+]) , pOH = - log([OH-] , pH + pOH = 14 [X] = concentration of X
If pH equals 4 what is the poh?
The pOH is 6,4.
What is the H ion concentration in a 4.8x10-2 M KOH solution?
pOH = -log(10)[OH^-] pOH = -log(10) [ 48. x 10^-2] pOH = - (-1.31875...) pOH = 1.31875... pH = 14 - pOH pH = 14 - 1.31875... pH = 12.68124... pH = 12.68
If you have 14 ml of acidic solution with pH 3 how many ml of solution with pH 8 will you need to add to make the solution pH 7?
You would need to add enough of the alkaline solution to make the total volume 14 litres. The pH of a solution is a measure of the concentration of the hydrogen ion. In fact it is the logarithm of the reciprocal of the hydrogen ion concentration. Water ionizes to give one hydrogen ion per 10 million molecules so the pH is log(10,000,000)=7. The pOH (alkalinity) is obtained by taking the pH away from 14. So pH 8 is equivalent to pOH 6. The pOH is the logarithm of the reciprocal of the hydroxide ion concentration. To achieve neutrality the number of hydrogen ions must balance the number of hydroxide ions. The difference between the pH of the acid solution and the pOH of the alkaline solution is 3. This tells us that the acid is 10 to the power of 3 times i.e. a thousand times more concentrated than the alkaline solution. Thus the acid needs to be diluted to one part in a thousand with the alkaline solution.
What is the full form of pOH?
Power of Hydroxide (ion value)
What is the pH pOH andOH- of a solution that has a hydronium ion concentration of 8.0 times 10 negative 6 M?
Important Notice: pH = negative value of the log10 of the hyronium concentration, which is very low, mostly
IS Alkalinity the opposite of PH?
No, pOH is the opposite of pH. They are both based on molarity "amount of solute per unit volume of solution". pH stands for "power of H+ ions in solution" (H+ = (hydrogen ion) pOH stands for "power of OH- ions in solution" (OH- = hydroxide ion) Hope that helps, -Coda
How is the strength of a salt determined using the pH scale?
pH is a measure of the concentration of hydronium ions in a solution. pOH is a measure of the concentration of hydroxide ions in a solution. When a salt is placed into a solution (typically an aqueous solution), the cation and anion can either dissociate completely or partially, and can react with other ions in solution. If the salt pulls hydroxide ions out of solution, the solution becomes more acidic, and if the salt pulls hydronium ions out of solution, the solution will become more basic. So, if you want to determine the "strength" of a salt, add it to water and measure the hydronium ion concentration of that solution.
Is it true that The pH scale measures the concentration of hydroxide ions?
No, pH measures the concentration of hydrogen ions. pOH would measure hydroxide concentration.
