A 1.2 · 102 M aqueous solution of Ca(OH)2 at 25.0 °C has a pH of, O 12.38 O 12.08 O 1.62 O 2.4 · 102 O 4.2 · 1013

Q: A certain weak acid found in Ketchup has a K, of 3.56 x 106. Calculate the pH of an aqueous solution…

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Q: What concentration of potassium hydroxide is needed to give an aqueous solution with a pH of 9.770?…

A: pH = 9.770   pH + pOH = 149.770 + pOH = 14pOH = 14 - 9.770pOH = 4.230   pOH = - log [OH-]4.230 = -…

Q: How many grams of NaNO, is needed to prepare an aqueous solution of 170 mL with a pH of 8.54? (For…

A: Consider the initial concentration of NO2- to be C and the reaction can be depicted as; Here, x=…

Q: The hydroxide ion concentration of an aqueous solution of 0.591 M formic acid , HCOOH is [OH*]= М.

A: The concentration of aqueous solution of formic acid, HCOOH = 0.591 M

Q: Write down the equation for the reaction of the following acids with water and identify the…

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Q: What is the pH of a 0.65 M solution of pyridine, C5H5N?

A: Given,  The concentration of C5H5N is 0.65M The kb value of C5H5N is 1.7×10-9 To solve: pH of 0.65M…

Q: What is the pH of a 0.083 M solution of NaCN?

A: Given :- Concentration NaCN solution = 0.083 M  To calculate :- pH of solution

Q: 535 mL of HCl(g) at 26.5 °C and 747 torr was dissolved in enough water to make a 625 mL solution.…

A: Given,  535 mL of HCl(g) at 26.5°C and 747 torr was dissolved in water make a 625 mL solution the pH…

Q: What is the pH of a solution prepared by dissolving 3.00 g of the weak acid HA (molar mass- 138.12…

A: pH of the solution indicates that the solution is acidic or basic in nature.  If the pH of the…

Q: The substance trimethylamine is a weak nitrogenous base like ammonia. Write a net ionic equation to…

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Q: Find the pH of 0.180 M NACN solution. For HCN, K = 4.9 x 10 10 O 8.57 O 2.72 O 5.03 O 11.28

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Q: The hydronium ion concentration of an aqueous solution of 0.428 M aniline (a weak base with the…

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

Q: Calculate the pH of a 0.88 M aqueous solution of the base aniline, Ce H; NH2 (K, = 4.0 x 1010). C,H;…

A: Here, we have to calculate the pH of a 0.88 M aqueous solution of the base aniline. Given: Kb for…

Q: Strychnine (in contaminated wine) may have been used to poison Alexander the Great.  Strychnine…

A: The solution is provided below:

Q: The pH of 30 cm^3 of an acidic solution is 2.89. Calculate the concentration of hydrogen ions and…

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Q: The hydronium ion concentration of an aqueous solution of 0.393 M caffeine (a weak base with the…

A: Caffeine is a weak base the formula C8H10N4O2. Weak bases will not dissociate completely.

Q: What concentration of potassium hydroxide is needed to give an aqueous solution with a pH of 10.170?…

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Q: Calculate the pH of a 0.0778 M aqueous solution of formic acid (HCOOH, K, = 1.8×10). pH =

A: The value of Ka for the formic acid is 1.8 × 10-4

Q: What is the pH of 0.390 M HC1(aq)? O 0.41 0.390 O 13.61 O 13.59 O7.00

A: We have to predict the pH of the solution.

Q: The hydronium ion concentration of an aqueous solution of 0.502 M triethanolamine (a weak base with…

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Q: What is the pH of a 0.250 M HOCI solution? K, of HOCI at 25°C is 3.5 x 10-8. O 7.46 O 4.03 O 3.57 O…

A: ​Given - - - >   Ka = 3.5*10-8   pH = 0.25

Q: The concentration of H* (or H3O*) from part A should be 1.02x×10-2 mol L-1. What is the pH of the…

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Q: Nitrous acid (HNO2), is a monoprotic acid with an ionization constant of 3.98 x 104. Calculate the…

A: Ionisation constant (i.e. ka) = 3.98 × 10-4  Concentration of HNO2 = 0.25 M  pH of the solution = ?

Q: The pH of an aqueous solution of 0.593 M dimethylamine (a weak base with the formula (CH3)2NH) is…

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Q: The hydronium ion concentration of an aqueous solution of 0.377 M ethylamine (a weak base with the…

A: Given, Concentration of of ethylamine solution (C) = 0.377 M [H3O+] = ? M ethylamine (C2H5NH2) is a…

Q: The pH of a 0.02 M NgOH solution at 25 °C is: O 12.8 O 13.7 O 1 1.5 O 12.3 O 13.1

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Q: Calculate the pH of a 0.14 M ammonium chloride, NH4Cl, solution. The Kb of ammonia, NH3, is 1.8 ×…

A: Given information: [NH4Cl] = 0.14 M Kb of ammonia, NH3, is 1.8 × 10−5 M

Q: Calculate the pH of a 1.3 M Ca(OH)2 aqueous solution. 14.4 O 13.9 O 13.6 O 14.1

A: Answer: 14.4

Q: NH3 is a weak base (Kb=1.8×10−5 M), so the salt NH4Cl acts as a weak acid. What is the pH of a…

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Q: The pH of a solution at 25°C in which [OH]= 2.0 x 10 is: 1 9.52 4.76 4.69 3.30 9.30

A: In this question, we want to determine the pH of the Solution.  You can see details Solution below…

Q: Calculate the pH of the following solutions.  1.50 g of NaOH in 50 mL of the aqueous solution

A: Given: The amount of sodium hydroxide present in 50 mL of water is 1.50 g.

Q: The pH of a 0.05 M NaOH solution at 25 °C is: O 13.8 O 13.1 O 1.5 • 12.7 O 10.3

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Q: Given that the Ka of a monoprotic acid HA is 3.20 x 10, and the acid HA concentration is 0.751 M,…

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Q: Why is rainwater always acidic, even in the absence of polluting gases such as SO3?

A: The rain water is acidic due to the presence of carbon dioxide, sulphur dioxide and nitrogen dioxide…

Q: Ascorbic acid (vitamin C, C6H8O6) is a diprotic acid (Ka1 = 8.0×10–5 and Ka2 = 1.6×10–12). What is…

A: Solution -

Q: The pH of a 0.05 M NaOH solution at 25 °C is: O 10.3 O 12.7 O 11.5 O 13.1 O13.8

A: pH of solution is calculated using relation pH + pOH = 14

Q: Calculate the pH of a solution with an H+1 concentration of 2.90 x10-12and identify the solution as…

A: Given: Concentration of H+ ions =  2.90×10-12

Q: If the [OH] of and acid is 2.57 x 10-8, what is the pH? o 13.2 o 12.49 ○ 6.41 o 2.91

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Q: The PH in a 0.005 M solution of Ba(OH), is: O 14 O 13 O 5 O 12

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Q: Write the formula of the conjugate acid of the Brønsted-Lowry base, C₄H₃N₂O₃⁻ ?

A: If we add H+ in base then it will convert into conjugate acid   C₄H₃N₂O₃⁻ +H+= C4H4N2O3

Q: Calculate the pH of the amphiprotic salt NaHA.  Ka (H2A) = 0.0026, Ka (HA-) = 0.0000000077

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

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.029M in…

Q: NH3 is a weak base (?b=1.8×10−5Kb=1.8×10−5) and so the salt NH4Cl acts as a weak acid. What is the…

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Q: The hydroxide ion concentration of an aqueous solution of 0.558 M formic acid , HCOOH is M. [ОН] 3

A: Given: Concentration of formic acid = 0.558 M Ka of formic acid = 1.8×10-4

Q: By what factor does 3H+4 change for a pH change of 0.50 units?

A: The pH of a solution is related to the concentration of H+ as follows: pH=-log [H+][H+]=10-pH

Q: Exactly 250 ml solution was made by dissolving 0.01 g of NaOH in water. What is the PH for the…

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Q: Calculate the pH of an aqueous KOH solution that is made by dissolving 654 mg of solid KOH in enough…

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Q: The pH of an aqueous solution of 0.470 M hydrocyanic acid is

A: Given :- concentration of hydrocyanic acid = 0.470M  To be calculated :-  pH of solution  pH =…

Q: The pH of 0.55 M aqueous solution ammonia HN3 at 25.0 degree C is 11.50. What is the value of Kb for…

A: NOTE : You have given HN3 instead of NH3. Since the pH is in basic zone, hence the specie will be…

Q: What is the pH of a 0.25 M solution of methylamine hydrochloride, CH3NH3Cl?

A: The question is related to finding out the pH of a salt solution which is composed of weak base and…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.