Nitrous acid has a Ka of 4.5x10-4. ▼ Part A What is the pH of a buffer solution containing 0.12 M HNO2 and 0.19 M NO₂? Express your answer using two decimal places. | ΑΣΦ n pH = Submit Request Answer < Return to Assignment Provide Feedback ?

Q: O3// Calculate the sodium acetate concentration that used in preparing a buffer solution with…

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Q: A buffer is created by combining 3.60 g of NH3 with 4.70 g of HCl and diluting to a total volume of…

A: Mass of NH3 = 3.60 g Mass of HCl = 4.70 g Volume of solution = 850.00 ml = 0.850 L

Q: Determine the pH at the point in the titrátion of 40.0 mL of 0.200 M HC4H,O2 with 0.100 M Sr(OH)2…

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A: Given that,Ksp for pH of the saturated solution=?

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Q: Which weak acid would be best to use when preparing a buffer solution with a pH of 9.50? an acid…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.It is…

Q: Calculate the pH of a solution prepared by adding 30.0 mLs of 0.20 M HCl to 50.0 mLs of 0.10 M…

A: Given: Concentration of HCl = 0.20 M Volume of HCl solution = 30.0 mL = 0.030 L…

Q: certain weak acid, HA, with a Ka value of 61 x 10-6, is titrated with NaOH. Part A A solution is…

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

Q: 1. a. What is the pH of a solution prepared by adding 25.0 mL of 0.10 M acetic acid (Ka = 1.8 x…

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Q: A solution is made by combining 12.7 mL of 16.5 mol L-1 benzoic acid (Ka = 6.3 x 10-5) with 5.39 g…

A: Given: Volume of benzoic acid = 12.7 mL = 0.0127LMolarity of benzoic acid = 16.5 mol/LTherefore,…

Q: A solution is prepared at 25 °C that is initially 0.27 M in chlorous acid (HCIO2), a weak acid with…

A: Given  [HClO2] = 0.27 M [KClO2] = 0.19 M Ka of the weak acid, HClO2 = 1.1x10-2

Q: What mass of sodium benzoate should be added to 160.0 mL of a 0.16 M benzoic acid solution in order…

A: We have given that pH = 4.3 pKa of benzoic acid = 4.2 Concentration of benzoic acid = [Benzoic…

Q: 6. Calculate the hydroxide ion concentration [OH] in an aqueous solution that contains [H*] = 2.5 x…

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Q: olution is made by mixing 185 mL of 0.100 M formic acid (Ka = 1.7 x 10-4 ) with 190. mL of 0.100 M…

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Q: Calculate the pH of the solution after 500 mL of the titrant have been added. Express your answer to…

A: The concentration of the acetic acid is Ca = 0.010 M,The volume of the the acetic acid is Va = 500…

Q: 8. What is the pH of the buffer formed by mixing 50 mL of 0.2 M NaH:PO4 with 50 mL of 0.12 M NaOH.…

A: The explanation is given below-

Q: A 1000.0 mL solution contains 0.150 M NaCIO and 0.200 M HCIO. What is the pH of this solution before…

A: pH = pKa + log[salt]/[acid] pKa = -logKa

Q: Draw the major organic product formed when the compound shown below is heated with H₂SO4.…

A: Alcohols in the presence of acid undergo dehydration to form Alkenes.  The reaction proceed through…

Q: Nitrous acid has a Ka of 4.5×10-4. a.) What is the pH of a buffer solution containing 0.13 M HNO2…

A: Ka of HNO2 = 4.5*10-4Concentration of nitrite ion = 0.15 MConcentration of nitric acid[HNO2] = 0.13…

Q: Determine the Ka value [H +]eq Solution 1 3.98 X 10-3 M Solution 2 6.03 X 10-4 M Solution 3…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: the video, what is the color of universal indicator in the most basic solution? What is (chemical…

A: (1) Color of universal indicator in the most basic Solution is purple violet.  Universal indicator…

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Q: 3, Calculate the pH of a solution prepared by mixing 150.0 mL of 0.200 M hydrobromic acid and 150.00…

A: (3)

Q: b. NaNO₂ (Ka of HNO₂ = 4.5 x 10-4) c. NH4NO3 (Kb of NH3 = 1.76 x 10-5)

A: Here we have to calculate the pH of the 0.100 M of the given salts. NaNO2 is a salt of weak acid(…

Q: Consider the titration of 40.0 mL of 0.18 M H3A (Kal = 1.9 × 10-4, Ka₂ = 1.2 × 10-8, Kaz KOH. a.…

A: A 40.0 mL of 0.18 M weak triprotic acid H3A is titrated with 0.18 M KOH.  The acid the dissociation…

Q: A 1.0 liter solution is made of 0.52 mol CH3 COOH and 0.29 mol CH3 COONA. Calculate the pH of the…

A: CH3COOH (Acid) and CH3COONa (salt) will form a acidic buffer. After addition of strong acid (HBr) ,…

Q: Calculate the pH of a buffer solution prepared by dissolving 0.83 mole of acid, HA, and 0.67 mole of…

A: Given data is as follows: The number of moles of HA acid = 0.83 mol The of moles of salt NaA = 0.67…

Q: Methyl red is a pH indicator. It turns red if the pH drops to 4.4 or lower, and turns yellow in…

A: Methyl red indicator turns red if the pH drops to 4.4 or lower andIt turns yellow if the pH is 6.2…

Q: A 5.50 g sample of a weak acid with K₁ = 1.3 x 10-4 was combined with 5.20 mL of 6.00 M NaOH and the…

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Q: 50.00 mL of 0.20 M HNO2 (nitrous acid, K₂= 2.52 x 104) is titrated with a 0.20 M KOH solution. What…

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Q: constant 1.8×IO-5. Calculate the pH of the solution (1) addition 10 ml ,0.1 M NaOH. * (2) addition…

A: Given [CH3COOH] =[CH3COONa] =1M total volume = 1L therefore, no of moles of CH3COOH and CH3COONa= 1M…

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A: Consider the given information is as follows; Volume of the solution = 2.0 L pH of the solution =…

Q: 5 The initial concentration of an acetic acid solution is 1.0 M and has a pH of 2.37. CH3COOH H+ +…

A: AS PER ANSWERING GUIDELINES I WILL ANSWER ONLY THE FIRST ONE IF YOU WANT THE REST POST THEM…

Q: What is the pH of a solution that results from mixing together equal volumes of a 0.120 M  solution…

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Q: What is the pH of a solution made from adding 10.00 mL of 0.15 M Na₂HASO4 to 25.00 mL of 0.10 M…

A: volme of Na2HAsO4=10.00 mLconcentration of Na2HAsO4=0.15 Mvolume of NaH2AsO4 =25.00 mLconcentration…

Q: Calculate the pH of a solution which contains 0.814 moles of CH3NH2 and 0.788 moles of CH3NH3CI. Kb…

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Q: alculate the pH in a solution which is made when 23.0 mL of 0.12 M NH3 (Kb = 1.8 x 10-5) is added to…

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Q: Question 2 You mix together a buffer solution with 0.076 moles of HA and 0.078 moles of NaA which…

A: Buffer are solution which resist change in PH when acid Or base are added to the solution Here We…

Q: f the K, of a monoprotic weak acid is 2.7 x 10-6, what is the pH of a 0.48 M solution of this acid?…

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Q: What is the pH of a 0.10 M solution of oxalic acid, H₂C₂O4 What are the concentrations of H₂O*,…

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Q: n acid with K, n acid with K, = 3.2 × 10-7 n acid with K, = 2.5 × 10"* n acid with K, = 1.7 × 10-10…

A: As we know, buffer is the mixture of weak Acid/base with its conjugate base/acid. And pH range of…

Q: The pH of a 500.00 mL buffer solution containing sodium mandelate and mandelic acid (ka= 3.89x10 4)…

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Q: Consider the titration of a 29.0 mL sample of 0.170 mol L-1 CH₂COOH (K=1.3 x 10-5) with 0.120 mol…

A: Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: Calculate the pH of a solution containing 0.20 M HC2H302 and 0.25 M NaC2H3O2. The Ka for HC2H3O2 is…

A: pKa = -log Ka = - log (1.8×10-5) = 4.74

Q: At 22 ˚C, an excess amount of a generic metal hydroxide, M(OH)2, is mixed with pure water. The…

A: Answer: For any sparingly soluble salt it is considered that all its dissolved quantity is in…