Which is more acidic? Is the most dangerous acid the strongest acid? Include a comparison of pH and pKa 0.05 M HBr solution (Ka = 1 x 109) 0.75 M H2C2O4 solution (Ka = 5.9 x 10-2)
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Q: 1. The oxalate ion concentration, C;0. of 0.20 M H;C0 is adjusted to a value of 3.00 x 10 M. What is…
A: As per the guideline, since you have asked multiple questions, we have solved the first question for…
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Q: A buffer system is set up with [HA] = 2[A–]. If pKa = 5.5, what is the pH of the buffer?
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Q: What is the pH of a 0.15 M solution of sodium nitrite? The pKa of nitrous acid is 3.15.
A: Consider the given information is as follows; Concentration of sodium nitrite = 0.15 M pKa of…
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Q: An organic acid has pKa = 4.70. What is its Ka value?
A: Ka = 10 -pka Explanation = pKa = -log10Ka -pKa = log10Kanow Ka = 10-pKa
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Q: . Calculate the pH of a 0.0368 M aqueous solution of nitrous acid (HNO2, Ka = 4.5×10-4).
A: HNO2 is a weak acid and does not undergo complete dissociation in solution.
Q: Write the dissociation equation and calculate the pH for a solution of 2.5 M HNO2 nitrous acid, Ka…
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Q: 1. How many grams of Ca3(PO4)2 will be needed to prepare 500.0 mL of a 0.161-M solution of…
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Q: 18. Calculate the pH of the solution formed when 12.0g of sodium fluoride (0.286mol) (NaF, FW- 41.99…
A: For a buffer- pH = pKa + log[Base][Acid] Now, pKa = - log Ka = 3.19 [Acid] = 0.5 M [Base] = 0.286…
Q: 3. Some projection models put the carbon dioxide concentration at 1255 ppm by the year 2100.…
A: Henry's law: It states that the partial pressure of that gas above the liquid is directly…
Q: Phosphoric (H,PO4) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is solution for…
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Q: Chemistry hypochlorous acid (HCIO) is a weak acid with pka=9.21. for a 0.10 M aqueous solution of…
A: Given : Concentration of hypochlorous acid (HOCl) = 0.10 M pKa of hypochlorous acid = 9.21
Q: A weak acid, HA, has a pKa of 4.838. If a solution of this acid has a pH of 4.675, what percentage…
A: Given:pKa = 4.838pH =4.675
Q: The pka values of HF, HCI, HBr and HI are 3.2, -7.0, -9.5 and -10.0, respectively. HF is the…
A: The pKa value is negative logarithm value of Ka. Hence lesser value means stronger the acid.…
Q: Which of the following acid/ conjugate base pairs would function best as a buffer at physiological…
A: 1- First we should know about physiological pH it's value is 7.40 it's maintain the blood pH because…
Q: How does pKa relate to acid strength?
A: For any weak acid, let's say HA, pKa is the relationship between the dissociation constant of acid.…
Q: What is the pH of a solution containing 0.327 mol L-1 of HCl and 1.041 mol L-1 of a weak acid with…
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Q: Hypochlorous acid, HClO, has a pKa of 7.54. What is [ ClO− ] in 0.115 M HClO? [ ClO− ] = × 10…
A: Given:Pka = 7.54[HClO] = 0.115 M
Q: Which acid is the best choice to create a buffer with pH=7.38? %3D nitrous acid (HNO2), pKa = 3.34 O…
A: to choose the best buffer, pick out that weak acid whose pKa is close to the pH of the buffer.
Q: Neutralization of phosphate . Given that phosphoricacid (H3PO4) can give up three protons with…
A: Titration curve for H3PO4 versus NaOH
Q: calculate molar concentration of nitrous acid, concentration of nitrite in which is equal to…
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Q: A hypothetical weak acid, HA, was combined with NaOH in the following proportions: 0,20 mol HA, 0,08…
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Q: Some projection models put the carbon dioxide concentration at 1255 ppm by the year 2100. Calculate…
A: KH=.034 mol/L .atm
Q: Phosphoric acid (H₃PO₄) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is a useful…
A: Buffer solution is one that resists change in pH. H3PO4 is triprotic acid, so, it has three pKa…
Q: Dissolve Tris (FW=121.14 g, pKa=8.07) 12.43 g and Tris.HCl (FW=157.60 g) in water, add 12.0mL of…
A: The question is based on the concept of buffer solution. A buffer is a solution which resist any…
Q: Briefly explain how AAS can quantify the amount of lead in sample solution?
A: Atomic Absorption Spectrometry (AAS) is a technique for measuring quantities of chemical elements…
Q: range of pH values could be achieved with a buffer consisting of nitrous acid and sodium nitrite?…
A: Nitrous acid is a weak acid and sodium nitrite is its salt. So, here we have to use the Henderson…
Q: 2) Which direction will the equilibrium lie for the following reaction? HO, NaOH ONa + H20 pKa =…
A: Since in the above reaction, there is a carboxylic acid and a base NaOH And they are reacting to…
Q: 3. Calculate the pH of a 0.012 M acetic acid aqueous solution (pKa = 5.46). Report the pH to the…
A: Acetic acid is a weak acid , so it doesn't dissociate completely. We would use acid hydrolysis…
Q: For H2CO3, pKa1-6.35 and pKa2=10.33. If the pH of an aqueous solution initially containing 0.10 M…
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Q: Hydrogen thiosulfite, HS2O2-, is a weak acid with pka= 6.97. A.) There are two sulfur atoms in…
A: A) On the basis of electronegativity difference, oxidation state of S1 is 0(zero) and oxidation…
Q: Fluoride treatment strengthens tooth enamel by converting hydroxyapatite, Cas(PO4)3OH, into…
A: Solubility product (Ksp) basically exhibits equilibrium that exists between particular solid and its…
Q: Butyric acid, the compound responsible for the unpleasant odor and taste of sour milk, has a pKa…
A: The Ka value of butyric acid is calculated below.
Q: A 0.200 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid.
A: Nitrous acid is a weak acid.
Q: 2. Write the K, K, and Kg reactions for arsenic acid showing the structures of each form of arsenic…
A: Arsenic acid has the formula: H3AsO4 and it is a triprotic acid.
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Q: Calculate the pH and ionization percentage of 0.2 M ammonium hydroxide solution if PKa = 4.7…
A: PH = 9 and % = 0.005 % But this option is not given
Q: What is the pH of a buffer solution that contains 0.245 M weak acid and 0.450 M of the conjugate…
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Q: For HClO2, Ka= 1.2 × 10-2. What is the pH of an aqueous solution in which [NaClO2] = 0.193 M and…
A: Buffer solution is the solution which contains both acidic as well as basic part. The pH of buffer…
Q: Vitamin C has a pKa value of 4.17. What is its Ka value?
A: The relation between Ka and pKa is given by : Putting the values in equation (1):…
Q: Calculate the pH of 0.20 M sodium asparaginate, ka= 1.86 x 10^-9
A: Given, Concentration of sodium asparaginate = 0.20 M Ka = 1.86 * 10-9 Required,…
Q: Phosphoric acid (H₃PO₄) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is a useful…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Calculate the concentration of all species (including H3O* and OH') in a 0.500 M solution of H2SO3…
A: Polyprotic acid is the acid that consists of two or more acidic hydrogen atoms. Number of…
Q: What is the pH of a solution that is 0.048 M in HA and also 0.042 M in NaA? (Ka = 4.1 × 10-6) %3D O…
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Q: Hypochlorous acid (HClO) is a weak acid with pKa=9.21. For a 0.10 M aqueous solution of nitrous…
A: Given : Concentration of HClO = 0.10 M pKa = 9.21
Q: What will be the resulting pH if we add 0.010 mole of HCl to 1 L of the acetate buffer solution in…
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Which is more acidic? Is the most dangerous acid the strongest acid? Include a comparison of pH and pKa
0.05 M HBr solution (Ka = 1 x 109)
0.75 M H2C2O4 solution (Ka = 5.9 x 10-2)
Step by step
Solved in 2 steps
- Calculate the pH of a 0.20 M HA solution, given the pKa of HA is 2.22.The following solutions were prepared: Solution A: 0.01 mole of perchloric acid (HClO4) dissolved in 1 L of water. Solution B: 0.01 mole of ethylamine hydrochloride (CH3CH2NH3Cl, pKa =10.64) dissolved in 1 L of water. a. Calculate the pH of Solution A.b. Calculate the pH of Solution B.c. Why is the pH of Solutions A different from Solution B?Calculate the pH at 25C of a 0.53 M solution of sodium hypochlorite (NaClO). Note that hypochlorous acid (HClO) is a weak acid with a pKa of 7.50. Round to 1 decmial place.
- Calculate the pKa of hypochlorous acid. The pH of a 0.015 M solution of hypochlorous acid has a pH of 4.64.Calculate the pH at 25°C of a 0.68 M solution of potassium butanoate (KC3H7CO2). Note that butanoic acid (HC3H7CO2) is a weak acid with a pKa of 4.82.You have a solution of a weak acid. The solution contains approximately 80% HA and 20% A-at pH 8. The pKa of the weak acid HA is MOST LIKELY to be ____________. 7.07.48.08.69.0
- What is the pH of water at 25°C that contains 0.50 mg/L of hypochlorous acid (pKa = 7.54)? Assume equilibrium has been achieved and there are equal concentrations of dissociated ions. Neglect the dissociation of water.Calculate the concentration of OH− and the pH for a 0.15 M aqueous solution of morphine (C17H19NO3, Kb = 1.6×10−6).3. Calculate the pH of a 0.012 M acetic acid aqueous solution (pKa = 5.46). Report the pH to the hundredths place
- Carbonic acid (H2CO3) plays a role in blood chemistry, cave formation, and ocean acidification. Using its Ka values from appendix C calculate the equilibrium values of [H3O+], [HCO3-], [H2CO3], and [CO32-] and find the pH of a 0.075 M H2CO3 solution.Calculate the pH of a 0.050 M aqueous solution of CH3CH2COOH, Ka = 1.80 x 10^-5Fluoride treatment strengthens tooth enamel by converting hydroxyapatite, Ca5(PO4)OH, into fluorapatite, Ca5(PO4)3F. Fluoraparite is stronger and more resistant to acid than hydroxyapatite. If the solubility of fluorapatite is 6.1 x 10^-8 mol/L, what is its Ksp? Ca5(PO4)3F(s) -> 5Ca^2+ + 3PO4^3- + F-