- solution is made from 0.19 M CH3NH2 (a weak base) and 0.27 M CH3NH3CI. What is the pH of the solution if the Kb for CH3NH2 is 4.4x104?

Q: What is the pH if the hydrogen ion concentration in a vinegar solution is 0.001 M? swer: omputation:

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Q: When calculating the [H3O*] for a polyprotic acid, the second ionization step can often be…

A: The reason why second ionization step could be neglected when determining the concentration of…

Q: In the laboratory, a general chemistry student measured the pH of a 0.415 M aqueous solution of…

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Q: If the K, of a weak base is 7.2 × 10-6, what is the pH of a 0.33 M solution of this base? pH =

A: in this question given data is  α=KaC   ka×kb=10-14C=0.33MPH=-logH+ Apply the value given formula,…

Q: If a buffer solution is 0.160 M in a weak acid (K₁ = 1.9 × 10-5) and 0.450 M in its conjugate base,…

A: Given,  Concentration of weak acid = 0.160 M  Ka = 1.9 x 10-5  Concentration of Conjugate base =…

Q: Q3// Grams of Sodium Formate required to add to 400ml of o.1M Formic acid to make the pH of solution…

A: The given solution is a buffer of Formic acid and Sodium formate. The pH of a buffer solution is…

Q: How many milliliters of acetic acid with a concentration of 10M should be added to a liter of 0.09M…

A: Value of pH is used to calculate acidity or basicity of a solution. pH value of a solution at room…

Q: What is the ph of a 0.214 M weak base solution? The Kb of the weak base is 0.000033.

A: Given :-  Concentration of weak base = 0.214 M  Kb = 0.000033  To calculate :-  pH of solution

Q: Reverse the concentrations of the weak acid and conjugate base for 0.25 M HC2H3O2 and 0.030 M…

A: Case 1: Concentration of weak acid and conjugate base are as follows: [CH3COOH] = 0.25 M [CH3COONa]…

Q: A solution is prepared by adding 31.56 grams of NaCN and 22.30 grams HCN to 600.0mL of water. i.…

A: First Calculate mole of each NaCN and HCN by dividing Molar mass to mass. Use Acidic buffer equation…

Q: 0.15 M aqueous solution of the weak base B at 25°C has pH of 8.88. The value of Kb for B is ______.

A: We will calculate the POH first than we will use the relation POH = 1/2(PKb - log C).

Q: Acid dissociation constants for sulfurous acid are given below. Solution A and Solution B are mixed.…

A: Given data,Molarity of KHSO3=1.00MVolume of KHSO3=200mLMolarity of KOH=1.00MVolume of KOH=40mL

Q: what is the pH of buffer solution containing 10.0g ammonium chloride to 250 mL of 1.0M ammonium…

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Q: A 0.285−mol sample of HX is dissolved in enough H2O to form 605.0 mL of solution. If the pH of the…

A: Dissociation extent for any species is clearly visible in its dissociation constant value. If this…

Q: 25.0 g sample of CH3COONa is completely dissolved in 500.0 mL of water and CH3COOH has an acid…

A: Given: Mass of CH3COONa = 25.0 g. And volume of solution = 500.0 mL = 0.500 L…

Q: If the ?aKa of a monoprotic weak acid is 7.9×10−6,7.9×10−6, what is the pH of a 0.25 M0.25 M…

A: The question is based on the concept of equilibrium. we have been given a weak acid whose…

Q: Determine the Kb of this base. (Need to show all steps of calculation)

A: Given: It is given that,"A solution of a weak hypothetical base (B) was made. The pH of 0.185 Molar…

Q: 0.00026 moles of acetic acid is added to 2.5L of water. What is the pH of the solution?

A: Acetic acid also called Ethanoic acid(CH3COOH )is a weak acid and on ionization it does not fully…

Q: which of the following weak acids would be the best to use to make buffer solution of pH=7.2?

A: A buffer solution is a solution whose pH does not change by adding small amount of acid and base.…

Q: In a solution with a pH of 7.0, the hypochlorous acid is Find the values of α1. (Ka = 3x10-8 for…

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Q: A 0.015 M solution of a weak acid, HA, is 17% dissociated. Calculate the Ka of the acid.

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Q: The pH of an aqueous solution at 25°C was found to be 5.80. The pOH of this solution is .????? The…

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Q: What is the pH of a 50 cm3 KOH solution if the concentration of it is 0.0100 mol/dm3. How the pH is…

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Q: If the Kb of a weak base is 6.8*10^-6 what is the pH of 0.18M solution of this base

A: We have to calculate the pH of weak base.

Q: Grams of Sodium Formate required to add to 400ml of 0.1M Formic acid to make the pH of solution by…

A: The reaction can be given as follows: HCOOH(aq)+NaOH(aq)→HCOO-Na+(aq)+H2O(l) Molarity of formic acid…

Q: A 0.15 M solution of a certain weak acid has a pH of 4.00. The K, of the weak acid is

A: Given :-  Concentration of weak acid = 0.15 M  pH of solution = 4.00  To calculate :-  Ka

Q: Butylamine, C4H9NH2, is a weak base. A 0.47M aqueous solution of butylamine has a ph of 12.13. What…

A: Given data,Molarity of butylamine=0.47MpH=12.13

Q: Calculate the pH of a 0.50 M HCOOH/ 0.60 M HCOOK buffer solution, and calculate the pH when 5.00 mL…

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Q: Hydrofluric acid is considered a weak acid in (aq) solution; Ka is equal to 6.7x10^(4-). Calculate…

A: We have to calculate the Kb for F-

Q: A 0.0001 molar basic solution is 1.50 % ionized. What is the pH of the solution if its Kb= 1.25 x…

A: Given, Concentration of Basic solution = 0.0001 M Ionized 1.50 % Kb = 1.25 x 10-6 Formula Used,…

Q: A solution is 0.40 M HF and 0.80 M KF. Which of the following actions will result in pH - pK, for…

A: solution which resists it pH by adding small amount strong acid (or) strong base is called buffer…

Q: If we combine 40.0 mL of a 0.100 M HNO3 solution with 60.0 mL of a 0.100 M ethylamine solution, what…

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Q: If the K, of a weak base is 1.7 × 10-6, what is the pH of a 0.18 M solution of this base? pH =

A: pH of a substance represents the strength of an acid or base. If the pH is small, it is a strong…

Q: In the laboratory, a general chemistry student measured the pH of a 0.319 M aqueous solution of…

A: using the given PH using the PH calculate the H+ concentration . PH=-logH+ put the value pH  then…

Q: hat will be the pH of a buffer solution prepared from 0.20 mol NH3, 0.40 mol NH4NO3, and just enough…

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Q: A 0.15 M solution of a certain weak acid has a pH of 4.25. The K, of the weak acid is

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Q: Calculate the pH of a solution containing 0.70 M HC2H302 and 0.25 M NaczH302. The K, for HC,H;0, is…

A: Given :-  Ka for HC2H3O2 = 1.8 × 10-5 concentration of HC2H3O2 = 0.70 M  concentration of NaC2H3O2 =…

Q: 2.30 mL ofa 0.4375 M HCl solution are added to 35 mL of 0.250 NAOH solution. What is the final pH?

A: An acid HCl and base NaOH undergo neutralization reaction to form salt NaCl and water. For the given…

Q: What will be the pH of the solution when 12.0 mL of 0.400 M KOH is added to a 25 mL of 0.200 M HOCI…

A: Given-> Volume of KOH = 12.0 ml Molarity of KOH = 0.400 M Volume of HOCl = 25 ml Molarity of HOCl…

Q: Enough of a monoprotic acid is dissolved in water to produce a 1.55 M solution. The pH of the…

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Q: 2. 30 mL of a 0.4375 M HCI solution are added to 35 mL of 0.250 NAOH solution. What is the final pH?

A: Given: The volume of HCl = 30 mL The concentration of HCl = 0.4375 M The volume of NaOH = 35 mL The…

Q: significant When determining the pH of a polyprotic acid solution or mixture of acids, only the [OH…

A: We know that, polyprotic acids are that kind of acids, which have more than one deionized hydrogen.

Q: If a buffer solution is 0.200 M in a weak acid (K = 7.1 × 10-) and 0.500 M in its conjugate base,…

A: We have given that  Weak acid = [HA] = 0.2 M Ka = 7.1×10-5  Conjugate base of acid = [A-] = 0.5 M

Q: Enough of a monoprotic acid is dissolved in water to produce a 1.74 M solution. The pH of the…

A: Let, HA be the monoprotic acid. Given, concentration of monoprotic acid, [HA] = 1.74 M     and, pH =…

Q: A CHM 122 student combines 42.2 mL of 0.413 MHBR with 32.7 mL of 0.384 M KOH. What is the pH of the…

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Q: Calculate the ph and poh for a solution that is 0.63 M in NH3 and 0.4 M in NH4Cl, Ki for NH3 is…

A: Given,  The molarity of NH3 = 0.63 M  The molarity of NH4Cl = 0.4 M The Ki for NH3 = 1.9 × 10-5  The…

Q: You have a 0.125 M solution of ammonium chloride.  If the Kb of NH3 = 1.75x10-5, calculate the pH of…

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Q: Enough of a monoprotic acid is dissolved in water to produce a 1.21 M solution. The pH of the…

A:

Q: A)write expressions for pH and pOH of

A: (NH4) 2SO4  it is salt of weak base and strong acid , hence it under go hydrolysis…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.