Given 100 mL of a 0.245 M solution of pyridine (C5H5N pKb = 8.77), what is the pH if 100 mL of 0.245 M HCI is added?

Q: Hydrocyanic acid, HCN, is a weak acid (Ka = 4.02*10-10). If I dissolve 0.882 g of HCN in enough…

A: Given information is as follows: The amount of HCN = 0.882 g The volume of water = 600 mL The value…

Q: A solution is made from 0.51 M NH3 and 0.48 M NH4Cl. What is the pH if the Kb for NH3 is 1.8x10-5?…

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Q: Methylamine, CH3NH2, is a weak base.CH3NH2(aq) + H2O(ℓ) ⇄ CH3NH3+(aq) + OH−(aq)If the pH of a 0.065…

A: Given data contains, pH=11.70 Concentration is 0.065 M. The pOH is calculated as, The pOH is 2.30.

Q: Ascorbic acid (Vitamin C) is a diprotic acid.( H2C6H6O6). It ionizes as follows   H2C6H6O6 (aq)…

A: Weak acid undergoes moderate dissociation and produce ions when it gets dissolved in aqueous…

Q: What is the concentration of H3O+, in M, of a solution with a pH of 1.11?

A: Given :  pH of Solution = 1.11 [ H3O+ ] = ? We know the following formula  pH = - log[ H3O+ ]

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

A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…

Q: Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.230 mol…

A: Since formic acid is a monoprotic weak acid and the solution is having weak acid and its conjugate…

Q: solution that is 0.185M in CH3NH2 and 0.105M in CH3NH3Br Calculate the pH?

A: Answer:- given solution is made of weak base and Salt of weak base with strong acid.So this is basic…

Q: Calculate the pH of a solution formed by mixing 200.0 mL of 0.10 M CH3NH2 with 250.0 mL of 0.15 M…

A: Solution, which resist in pH change value upon addition of small amount of strong acid or base (less…

Q: Caffeine (C8H10N4O2) is a weak base with pKb of 10.4. Calculate the ph of a solution containing a…

A: Caffeine is a weak base. Given  pKb for caffeine = 10.4  Cocentration of caffeine =455 mg/L…

Q: Calculate the pH of a 0.021 M NaCN solution. [K a(HCN) = 4.9 × 10 –10]     7.00     3.18     5.49…

A: We have to calculate pH for 0.021M of NaCN.

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

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Q: What is the pH of a solution made by mixing 35.00 mL of 0.100 M HCl with 40.00 mL of 0.100 M KOH?…

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Q: Normal human blood has a hydroxide ion concentration that ranges from 1.7 × 107 -7 M to 3.5 x 10 7…

A: Given: pH of blood = 7.67  And the normal range of hydroxide ion concentration in the human body is…

Q: 2. A 0.20 M lactic acid (HC3H5O3) solution has a pH of 2.28. Calculate the acid-dissociation…

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Q: The pH of 0.0720M solution of a weak acid is 2.670. What is the Ka of the acid

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Q: Maleic acid (H2C4H2O4) is a diprotic acid with ?a1=1.20×10−3 and ?a2=5.37×10−7. Determine the pH of…

A: 1- First we will determine the H+ ion concentration :  Most H+ ion comes from first dissociation.…

Q: Calculate The PH Of 0.10M Na2C2O4

A: pH is a measure of acidity or basicity of a solution. A solution with pH less than 7 is considered…

Q: What is the pH of 0.1M Na2HPO4. if,  pk1=4,   pK2=7,  pK3=11?

A: What is the pH of 0.1M Na2HPO4. if,  pk1=4,   pK2=7,  pK3=11?

Q: The pH for 0.0850 M solution of C₆H₅CH₂COOH is 2.68. Determine the value of Ka for C₆H₅CH₂COOH.…

A: The acid dissociates as: C6H5CH2COOH→C6H5CH2COO-+H+

Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4. What is the pH of a 0.230 M  solution of methylamine?

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Q: If a 0.150 M solution of chlorobenzoate (NaC7H4ClO2) has a pH of 8.588, what is the pH of a 0.0150 M…

A: PH : It is the negative logarithm of concentration of H+ . It is denoted by :

Q: Enough of a monoprotic acid is dissolved in water to produce a 1.18M solution. The pH of the…

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Q: The Ka for HN3 is 1.9 x 10-5.  What is the pH of a 0.35 M solution of HN3?

A: The pH of a weak acid can be calculated by the following formula. pH=-logCα   since…

Q: List the following in order of increasing pH of their 0.25M solution:-  NH4Cl, MgCl2, HCl, NaOCl,…

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Q: Calculate the pH of a solution prepared by adding 45.0 mL of a 0.213 M HCl solution to 125.0 mL of a…

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Q: HX is a weak acid: Ka = 5.52 × 10–7. Calculate the pH of a solution in which [HX] = 0.0501 M and…

A: Here HX is a weak acid. Given data, Ka =5.52×10-7 [HX]=0.0501 M and [X1-]=0.00845 M

Q: The pH of a 0.247 M aqueous HC(O)COOH solution is 2.04. q1: calculate Ka q2: calculate pH of a…

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Q: if the H3O+ ion concentration in an aqueous solution at 25 °c measured 4.61 * 10^-8 M, what is the…

A: Given : [H+] = 4.61 * 10^-8 M

Q: If a solution has a concentration of hydronium ions less than 1.0 x 10-12 M would it be considered…

A: On the basis of pH value we can say whether the solution is acidic or basic. Firstly we need to…

Q: If one mixes an 0.10M solution of monohydrogen phosphate ion HPO3-2with an equal volume of 0.1M…

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Q: The pH of a 0.50 M aqueous solution of a weak acid at 25.0 °C is 1.43. What is the value of Ka for…

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Q: Carbonic acid, H₂CO₃ is a diprotic acid with Ka1 = 4.3 × 10⁻⁷ and Ka2 = 5.6 × 10⁻¹¹. What is the pH…

A: H2CO3 is weak diprotic acid so its pH is not directly calculated

Q: Which of the following solutions has the highest pH? Select one: a. 0.60 M HCOOH b. 0.60 M…

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Q: After dissolving 0.35 g of magnesium hydroxide in 135 mL of water, how many mL of a 1 L hydrochloric…

A: M= n / V(in L)   where   n = moles of solute (Mg(OH)2) = mass / molar mass = 0.35 g / 58 g/mol   =…

Q: The Ka for H2S is 9.1x10^-8. Calculate the pH of a .15 M solution of H2S in water

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Q: A solution contains 0.395 M ammonium chloride and 0.246 M ammonia. The pH of this solution is  1b.…

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Q: Calculate the pH, pOH, hydronium ion (+) or hydroxyl ion (-)of the solutions below.   pH= 7.5…

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Q: Put the following in order from highest to lowest pH if they all have the same molarity:…

A: The compounds given are C6H5COOH, HClO3, CsOH, Ba(OH)2, KCl and Li3PO4. The pH of any acid is always…

Q: What is the pH of a solution after 0.00200 mol of HNO2(aq) (100 ml) has been combined with 0.00100…

A: First Calculate total volume in Litre. Then find out limiting reagent which is NaOH in the reaction…

Q: HIO3 has a ka of  0.16. What is the pH of a 0.600 M HIO3 solution? (use successive approximations)

A: The strength of an acid depends on the extent of its dissociation in water. Strong acids dissociate…

Q: If the pH of a certain soft drink is 3.60, what is the H3O+ concentration in the soft drink

A: Given, pH of soft drink = 3.60 The concentration is defined as the abundance of the constituent that…

Q: a. 35 mL of 0.15 M H₂SO4 is mixed with 35 mL of 0.30 M NaOH O The pH of the solution is less than 7.…

A: pH is the measure of acidity or basicity of a solution. A solution with pH higher than 7 is basic…

Q: What is the pH of an aqueous solution made by combining 43.55 mL of a 0.3692 M ammonium chloride…

A: Ammonia, NH3(aq) is a weak base and ammonium chloride, NH4Cl, or NH4+(aq) is a conjugate base of…

Q: A solution of formic acid (HCOOH) has a pH of 2.85. How many grams of formic acid are there in 100.0…

A: Welcome to bartleby !  Introduction :  We have to calculate mass of formic acid in grams .

Q: Acetic acid, (HC2H3O2) is a weak acid (Ka = 1.8 10–5). Calculate the pH of a 14.4 M H

A: pH is used for the measurement of potential of hydrogen ions.

Q: What is the pH of a solution that is prepared by dissolving 3.30 g of (NH4)2SO4 in water, adding…

A: Answer: A buffer solution is the type of solution that, on adding the small quantity of acid or…

Q: The Ka for HC2H3O2 is 1.8 x 10-5. What is the pH of a 0.02M solution of this weak acid?

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Q: Ascorbic acid (Vitamin C) is a diprotic acid.( H2C6H6O6). It ionizes as follows   H2C6H6O6 (aq)…

A: Weak acids feebly dissociates in ions when get dissolved in solutions. This results in the less…