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First recognize that NaF is the salt of a strong base (NaOH) and a weak acid (HF), so the pH will be alkaline. Next, look at the hydrolysis of NaF: NaF + H2O ---> NaOH + HF, or looking at it another way.... F^- + H2O ---> HF + OH- and here F^- acts as a base, so we need the Kb for NaF and that will be the inverse of the Ka for HF. The Ka for HF is 6.6x10^-4, so Kb = 1x10^-14/6.6x10^-4 = 1.5x10^-11.
Now, Kb = [HF][OH-]/[F-] = (x)(x)/(0.89) = 1.5x10^-11
x^2 = 1.3x10^-11
x = 3.6x10^-6 = [OH-]
pOH = -log 3.6x10^-6 = 5.44
pH = 8.6 (note the pH is alkaline, as expected)
What else can I help you with?
The molar solubility of is not affected by the pH of the solution Na3PO4 NaF KNO3 AlCl3 or MnS?
That's correct. The molar solubility of Na3PO4, NaF, KNO3, AlCl3, and MnS is not affected by the pH of the solution because these compounds do not contain any acidic or basic groups that can significantly influence their solubility as pH changes. The solubility of these compounds is primarily determined by their intrinsic properties and the interactions between the ions in the compound.
What is chemical equation when a strong acid is added to a buffer solution containing NaF and HF?
When a strong acid is added to a buffer solution containing NaF and HF, the strong acid will react with the weak base (F-) to form HF. The buffer solution will resist changes in pH by the common ion effect, maintaining the solution's acidity around the initial pH of the buffer. The chemical equation can be written as H+ + F- ↔ HF.
What is the pH if OH is 1x10 5 M?
- log(1 X 10^-5 M) = 5 14 - 5 = 9 pH ----------
Is 2.77 a normal pH for hydrochloric acid thats 1M If not then how should I calibrate my pH meter at home?
No, pH 2.77 is not the correct pH for 1 M HCl. The pH of 1 M HCl should be 0 (zero) because pH is the negative log the the H+ and for 1 M HCl the [H+] is 1 M, and the negative log of 1 is 0.
What is the pH of solution with H plus 2.310?
pH = -log [H+], so if the [H+] is 2.310 M, the pH = -0.3636
What is the effect of adding NaF to a aqueous HF solution-a pH increases b h30 increases c hf increases?
c. The addition of NaF to an aqueous HF solution will increase the concentration of HF. This is because NaF will react with HF to form NaHF2, which increases the amount of HF present in the solution.
How many moles of NaF are in 34.2 grams of a 45.5 percent by mass NaF solution?
To determine the number of moles of NaF in 34.2 grams of a 45.5% by mass solution, first calculate the mass of NaF in the solution. Mass of NaF = 45.5% of 34.2 grams. Then convert the mass of NaF to moles using the molar mass of NaF. Finally, divide the mass of NaF by its molar mass to get the number of moles.
The molar solubility of is not affected by the pH of the solution Na3PO4 NaF KNO3 AlCl3 or MnS?
That's correct. The molar solubility of Na3PO4, NaF, KNO3, AlCl3, and MnS is not affected by the pH of the solution because these compounds do not contain any acidic or basic groups that can significantly influence their solubility as pH changes. The solubility of these compounds is primarily determined by their intrinsic properties and the interactions between the ions in the compound.
What is chemical equation when a strong acid is added to a buffer solution containing NaF and HF?
When a strong acid is added to a buffer solution containing NaF and HF, the strong acid will react with the weak base (F-) to form HF. The buffer solution will resist changes in pH by the common ion effect, maintaining the solution's acidity around the initial pH of the buffer. The chemical equation can be written as H+ + F- ↔ HF.
Is naf a word?
Naf is not in the Oxford English dictionary.
What is the pH of a solution with 0001 M H3O?
3. since the [H+]=0.001 M then pH= -log[H+] -log(0.001)=3 pH=3.
What is the pH of a 0.001 M of HCl solution?
its PH is 3
What is the conjugate acid of NaF?
The conjugate acid of NaF is HF (hydrofluoric acid). When NaF accepts a proton, it forms HF.
How do you pronounce naphtali?
Naf-'t'-lee or Naf-'t'-lie
What is the scientific name for NaF?
The scientific name for NaF is sodium fluoride.
How do you prepare Britton Robinson buffer?
Britton-Robinson buffer is a "universal" pH buffer used for the range pH 2 to pH 12. Universal buffers consist of mixtures of acids of diminishing strength (increasing pKa) so that the change in pH is approximately proportional to the amount of alkali added. It consists of a mixture of 0.04 M H3BO3, 0.04 M H3PO4 and 0.04 M CH3COOH that has been titrated to the desired pH with 0.2 M NaOH. Britten and Robinson also proposed a second formulation that gave an essentially linear pH response to added alkali from pH 2.5 to pH 9.2 (and buffers to pH 12). This mixture consists of 0.0286 M citric acid, 0.0286 M KH2PO4, 0.0286 M H3BO3, 0.0286 M veronal and 0.0286 M HCl titrated with 0.2 M NaOH.
What is the pH of 0.1 M HBr?
The pH of a 0.1 M solution of HBr (hydrobromic acid) is around 1. It is a strong acid that dissociates completely in water to produce H+ ions, resulting in a low pH.
