2. It takes 12.45 mL of 0.50 M NAOH to back titrate a mixture containing 1.25 g of baking soda, NaHCO, and 10.00 mL of 1.2 M HCl solution. Calculate the moles of antacid activity (OH-) per gram of baking soda. 75

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A: a. The central atom is O. It has two sigma bonds and two Lone Pair. That's why it has 4 coordination…

Q: Calculate the pKa of hypochlorous acid. The pH of a 0.015 M  solution of hypochlorous acid has a pH…

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Q: What is the pH of a 0.40 M solution of sodium nitrate, NaNO2 ? The pKa for nitrous acid (HNO2) is…

A: Base dissociation constant Kb is utilized to determine the basic nature of a solution. It refers to…

Q: Write the dissociation equation and calculate the pH for a solution of 2.5 M HNO2 nitrous acid, Ka…

A:

Q: Calculate the concentration of HBr in a solution at 25°C that  has pOH (a) 9.19, (b) 12.18, and (c)…

A: HBr is a strong acid and 100% dissociate in the solution. Now at 25°C the relationship between pH…

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: Determine the pH and pOH of 0.25 L of a solution that is 0.0201 M boric acid and 0.0366 M sodium…

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Q: beaker contains a total concentration of 0.33 molar of weak acetic acid with pKa=4.27 and pH=2.02.…

A: Initial concentration= 0.33 M pKa= 4.27  pH= 2.02

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…

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Q: 5. A solution of nitrous acid has a pH of 2.45. The [H'] in mol/L and pOH must be respectively a.…

A: Given:…

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A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Each day the stomach produces 2.0 L of gastric juice that contains 0.10 M HCl. Phillips Milk of…

A: Given ,  Molarity of HCl (M1) = 0.10 M Volume of HCl (V1) = 0.093 L = 93. mL  Concentration of…

Q: what is the concentration of cl- ions in a 0.1 M solution of calcium chloride?

A:

Q: It is desired to prepare 200 mL of a buffer solution of Ph 4.5 from acetic acid, CH3COOH and its…

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Q: What is the pOH of 0.92 M RBCIO4?

A: Given : Concentration of RbClO4 = 0.92 M

Q: A hypothetical weak acid, HA, was combined with NaOH in the following proportions: 0,20 mol HA, 0,08…

A:

Q: What is the pH of a solution of 0.06 M of H2CO3, pKa1 = 6.4 and pKa2= 10.3?

A: We will calculate pH

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A: Consider the equilibrium reaction as;                  HN3 aq     ⇌     H+ aq    +    N3- aqInitial:…

Q: At what pH is the concentration of a compound, with a pKa = 8.4, 100 times greater in its basic form…

A:

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: A 0.100 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid.…

A: We are given Nitrous acid and its pH. We have to find Ka. Concentration of nitrous acid = 0.1 M

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A: Nitrous acid is a weak acid and sodium nitrite is its salt. So, here we have to use the Henderson…

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Q: What are the concentrations of H3O+ and OH− in oranges that have a pH of 3.92?

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Q: The pKa of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

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Q: What is the pH of a solution that is 0.05M in ethylamine and 0.08M in its chloride salt (pKa=10.8)

A: pH of a solution =?    [ C2H5NH2 ] = 0.05 M    [ C2H5NH3+ ] = 0.08 M Acid dissociation constant :…

Q: A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1.…

A: The molarity of a nitrous acid solution is = 0.300 M The pH of the solution is =2.07 The Ka value of…

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: The alkalinity of a river was determined to be 5 x 10-3 mol H+/L and its pH is 8. Calculate the…

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Q: At what pH is the concentration of a compound, with a pKa = 3.7, 10 times greater in its acidic form…

A: Given information: pKa = 3.7 [Acid] = 10[Base]

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Q: A wine was tested for acidity, and its pH was found to be 3.13 at 25°C. What is the hydronium

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A: Sn4+ hydroxide, [Sn(OH)4] is extremely insoluble, just as the sulfide is (Ksp = 1.0 x10-57 and 1.0…

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Q: A 0.100 M solution of HOBr has a pH of 5.343. What is Ka for HOBr?

A: Ka is the dissociation constant of an acid. It measures the strength of an acid.

Q: The pka of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

A:

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

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A: Calculate the mole of calcium hydroxide.  1000 kg  = 1000000 g molar mass of Ca(OH)2 = 74.093 g/mol…