The Ka of citric acid is 1.9x10-5 at 25.0oC, what is the pH of a 0.30 M aqueous solution of citric acid?

Q: Explain what happens to the concentration of hydrogen ions in anaqueous solution when you add a base…

A: The pH of a solution depends upon the concentration of hydrogen ion present in the solution. The…

Q: A solution of 0.20 M hydrazoic acid has a pH of 3.21. What is the Ka of hydrazoic acid?

A: We have to calculate the Ka of acid.

Q: The pH of an aqueous solution of 5.35x102 M hydroselenic acid, H2Se (aq), is ? For H2Se Ka1 =…

A: The pH of a solution is guided by the concentration of the hydrogen ions.pH=-log10H+

Q: ОН

A: We will use concept of weak base

Q: What is the pH of a solution of 0.300 M HNO, containing 0.180 M NANO,? (Ka of HNO2 is 4.5 x 10-4)

A: Given- Concentration of HNO2=0.300M Concentration of NaNO2=0.180M Ka of HNO2= 4.5×10-4

Q: The Ka of propionic acid (HPro) is 1.3 x 105. Which of the following statements is true about…

A:

Q: HCIO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Kw = Ka x Kb  Kw = 1x10-14  given that Ka = 4x10-8 find Kb = (1x10-14) / (4x10-8) = 2.5x10-7 Initial…

Q: A tablet containing 500 mg of aspirin was dissolved in enough water to make 100 mL of solution.…

A: Given, Mass of aspirin, C9H8O4 = 500 mg = 0.500 g     (1 mg = 0.001 g) Volume of solution = 100 mL =…

Q: What is the pH of a 0.455 M solution of lactate, (CH3)2 COO^-1. The pKa of lactic acid, (CH3)2 COOH…

A: Given - Concentration of solution of lactate (CH3)2 COO- =  0.455 M pKa of lactic acid  (CH3)2 COOH)…

Q: The hydronium ion concentration of an aqueous solution of 0.591 M hypochlorous acid (K, = 3.50×10-8)…

A: [HClO] ( concentration of hypochlorous acid ) = 0.591 M  Acid equilibrium constant Ka = 3.50 * 10-8…

Q: What would the concentration of CH3COO be at pH 5.3 if 0.1 m CH3COOH was adjusted to that

A:

Q: The value of K, for benzoic acid is 6.30×10-5. What is the value ofKg, for its conjugate base,…

A: Given: For Benzoic acid  The value of Ka = 6.30 x 10-5  For Conjugate base, C6H5COO- The value of Kb…

Q: The pKp of 4-hydroxypyridine is 10.80 at 25°C. What is the pH of a 0.0250M solution? Round to two…

A: Please have a look on the solution below:

Q: The pH of a (1.7300x10^-1) molar solution of an aqueous weak acid (HA) is (1.99x10^0). The Ka for…

A: PHis  defined as the power of Hydrogen.it measure acidity, basicity or neutrality of aqueous…

Q: Calculate the pH of a 0.15M solution of sodium acetate (CH3COONa). What is the percent hydrolysis?…

A: A strong base and weak acid react to form salt and water. The salt will be basic in nature and the…

Q: Calculate the pH of a 0.25M solution of formate ion (HCOO-) at 250 C.  The pKa for formic acid…

A:

Q: What is the pH of a solution of 0.85M HC2H3O2 and 0. 65M NaC2H3O2? The Ka for HC2H3O2 is 1.8 x 10^-5

A: Buffer Solution :- Buffer solution is prepared using weak acid and it's conjugate base of the weak…

Q: The Ka for niacin is 1.5 * 10-5. What is the pH of a 0.010 M solution of niacin?

A:

Q: At 25°C, what changes in pH occur when (a) 0.0250 M HCI (b) 0.0250 M NaOH are diluted with water by…

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Q: Galaulate the PH and the Pott FOR 9.6M solution OF MH₂ инз K. FOR NH3=1.97105

A: Here we are required to find the pOH and pH of 0.6M of ammonia solution

Q: What is the pH of a solution that is 0.28 M in acetic acid, HC2H3O2, and 0.69 M in sodium acetate,…

A: Answer:- This question is answered by using the simple concept of calculation of pH of a solution…

Q: 10. The pH of 0.25 M aqueous solution of a weak acid HA is observed to be 4.15. Determine the acid…

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Q: In humans, blood pH is maintained within a narrow range:acidosis occurs if the blood pH is below…

A:

Q: If the pH of a 0.200 M solution of the CICH2O¯ ion is 12.05, then what is the value for the basicity…

A: Given: pH = 12.05 Thus, pOH = 14 - 12.05 = 1.95 As pOH = -log[OH-] Thus, [OH-] = 10-pOH = 10-1.95 =…

Q: calcualate the pH of a 0.15 M solution of pyruvic acid ka of pyruvic acid is 4.1x10^-3

A: Given: Molarity or concentration of pyruvic acid = 0.15M Ka of pyruvic acid = 4.1 × 10-3

Q: Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is 1.8 x 10-5.

A: Interpretation: The pH of a 0.800 M NaCH3CO2 solution is to be determined.

Q: When 2.0 x 10-2 mole of nicotinic acid (a monoprotic acid) is dissolved in 350. mL of water, the pH…

A: Nicotine is a weak monoprotic acid so it dissociated in less amount. So we can denotes it by HA .

Q: Tris(hydroxymethyl)aminomethane, commonly known as Tris, is a weak, water-soluble monobasic base…

A: pKb = 5.91 c = 0.060 M

Q: A newly found weak acid is found to have a pH of 4.13 when an aqueous solution of 0.326 M is…

A: Calculate the concentration of hydrogen ions released in the solution.

Q: The Ka for formic acid (HCO2H) is 1.8x10-4, What is the pH of a 0.20M aqueous solution of sodium…

A:

Q: The Ka of acetic acid (HC2H302) is 1.8 x 10-5. What is the pOH at 25.0 °C of an aqueous solution…

A:

Q: CH;NH, is a weak base (Kp = 5.0 × 104), so the salt CH,NH,NO, acts as a weak acid. What is the pH of…

A: The pH of salt of strong acid and weak base can be calculated by  using formula

Q: to be 1.48 at 25°C. Calculate the Ka for the acid. 3. What is the original molarity of an aqueous…

A:

Q: A solution is prepared at 25 °C that is initially 0.16 M in ammonia (NH3), a weak base with K₂ = 1.8…

A:

Q: The Ka of hypochlorous acid (HClO) is 3.00 × 10^-8. What is the pH at 25.0 °C of an aqueous solution…

A: Given- Ka of hypochlorous acid =3.00×10-8 Concentration of hypochlorous acid =0.0200M

Q: The base protonation constant K, of lidocaine (C4H2]NONH) is 1.15 × 10 °. Calculate the pH of a 1.3…

A: Kb - It is the base dissociation constant. It tells us up to how much extent a base dissociates and…

Q: The Ka for niacin is 1.5 x 10-5. Whatis the pH of a 0.010 M solution of niacin?

A: The dissociation reaction of niacin is as shown below Hence we can see that 1 molar concentration…

Q: The pH of a 0.55 M aqueous solution of hypobromous acid, HBrO, at 25oC is 4.48. What is the value of…

A: The concentration of HBrO solution = 0.55 M. pH of aqueous HBrO solution = 4.48.

Q: Why is the pH of water at 25oC equal to 7.00?

A:

Q: What is the Ka of hydrazoic acid if a 0.020 M hydrazoic acid aqueous solution has a pH of 3.22?

A:

Q: Calculate the pH of a solution that is 0.195M in sodium formate (NaHCO2) and 0.24 M in formic acid…

A: Given: Concentration of  sodium formate (NaHCO2) = 0.195 M            formic acid (HCO2H)  = 0.24M…

Q: Ascorbic acid, H2C6H6O6, is a diprotic acid with Ka1 = 7.9 * 10-5 and Ka2 = 1.6 * 10-12.  What is…

A: Dissociation constants of ascorbic acid  given are as follows: Ascorbic Acid dissociates as…

Q: The Ka of a weak monoprotic acid is 1.13 x 10-5. What is the pH of a 0.0777 M solution of this acid?…

A:

Q: 3g of benzoic acid (Molecular mass = 122 g/mol) are dissolved in 100 mL of pure water. Calculate the…

A: Ionization of weak monoprotic acid and pH calculation:

Q: What is the pH of an aqueous solution of 0.005 M C6H5O- at 298 K of the Ka for phenol at the given T…

A: Given: Concentration of C6H5O- = 0.005 M And Ka of C6H5OH = 1.0 × 10-10

Q: What is the pH of a grapefruit that contains 0.007 M citric acid solution (C;HgO;)? CH3O;(aq) +…

A:

Q: Calculate the pH of a 27 mg/L solution of hydrocyanic acid (HCN). The pKa of hydrocyanic acid is…

A: Given: The concentration of hydrocyanic acid is 27 mg/L. The pKa of hydrocyanic acid is 9.3.

Q: at 25 degrees celcous, the Ka of HCO2H is 1.77 x 10^-4. What is the Delta G naught in kj/mol for…

A: Given : Ka of HCO2H = 1.77 X 10-4  And temperature = 25 oC

Q: Lithium dihydrogen borate (LIH2BO3) is the lithium salt of the conjugate base of boric acid. The Ka…

A: Given that -  Ka for Boric acid, H3BO3 = 5.8×10-10    Then, from following formula -  Ka . Kb = Kw =…

Q: If the hydrogen ion (H30*) activity in a system is 0.0078549423 mol/L (note the units!), then what…

A: Given that: Activity of hydronium ion (aH3O+) = 0.0078549423 mol/L