An analytical chemist is titrating 134.4mL of a 0.6500M solution of nitrous acid HNO2 with a 0.7300M solution of NaOH. The pKa of nitrous acid is 3.35. Calculate the pH of the acid solution after the chemist has added 131.8mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal places.

Q: An analytical chemist is titrating 94.8 mL of a 0.4000M solution of nitrous acid (HNO,) with a…

A: Given : Volume of HNO2 solution = 94.8 mL = 0.0948 L                                      (since 1 L…

Q: A buffer solution is prepared by dissolving 1.0 mole of the weak acid CH3COOH (pKa = 4.74) and 1.0…

A: The initial pH of the buffer can be calculated as follows-

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A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid

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A: Given: [Acid] = 0.140 M [Salt] = 0.010 M Ka = 1.8 * 10-4   We have to calculate pH of buffer…

Q: 14. What is the pH of a mixture of 0.20M acetic acid and 0.30M sodium acetate, if the pKa of the…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: Phosphoric acid is a triprotic acid (Kal 6.9 x 10-3, K2 = 6.2 × 10-8, and Ka3 = 4.8 x 10-13). To…

A:

Q: The table below shows the plH values at which two different indicators change colour Indicator…

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

Q: A solution is prepared by dissolving 0.23 mol of nitrous acid and 0.27 mol of sodium nitrite in…

A:

Q: 1. A buffer solution is prepared by taking 0.25 moles of acetic acid (pKa = 4.76) and 0.400 moles of…

A: 1. Given,

Q: pka = 1.95 (HClO2) If you have 500 mL of a 0.10 M solution of the acid, what mass of the…

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: Which

A: Those solution when resist to change the pH when small amount of acid or base added on it's then…

Q: An analytical chemist is titrating 63.4 mL of a 0.3700 M solution of nitrous acid (HNO,) with a…

A:

Q: 2. The weak acid hypochlorous acid (HClO) is formed in bleach solutions. If the pH of a 0.12 M…

A: In multiplart questions we solve only three subquestion according to Bartleby Guidelines. pH of any…

Q: A buffer solution is prepared by dissolving 0.200 mol of NaH 2PO 4 and 0.100 mol of NaOH in enough…

A: Buffer solution is the solution which has tendency to maintain constant pH upon addition of small…

Q: A standardized iodine solution is used to titrate hydrazine sulfate in a sodium bicarbonate-…

A: A question based on concentration terms that is to be accomplished.

Q: An analytical chemist is titrating 152.5 mL of a 0.9200 M solution of nitrous acid (HNO,) with a…

A: pH is used to determine the concentration of hydronium ion.

Q: A buffer solution is made that is 0.440 M in HClO and 0.440 M in NaClO. (1) If Ka for HClO is…

A: Given : Concentration of weak acid HClO = 0.440 M And concentration of conjugate base salt of weak…

Q: Calculate the pH of a 0.63 M solution of a weak acid, AH, for instance CH3COOH, and 1.46 M of a…

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Q: To 20,00 ml of 0,1000 mol/l acetic acid solution (pKa=4,76) 19,98 ml of 0,1000 mol/l sodium…

A:

Q: Using the Henderson-Hasselbach equation predict under which of the following conditions will the pH…

A: A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate…

Q: A buffer solution is prepared by taking 0.400 moles of acetic acid (pKa = 4.76) and 0.250 moles of…

A: The Henderson Hasselbalch equation for acidic buffer solution is given as :

Q: What is the pH of a buffer solution that contains 0.25 M HClO and 0.35 M NaClO? (pKa HClO = 7.46)…

A:

Q: _______6. Na2 CO3   forms alkaline solution when dissolved in water. Why? Because water hydrolysis…

A:

Q: Which of the following is the best buffer at neutral pH (pH 7.0)? O Water, pKa = 14 Phosphoric acid,…

A: The question is based on the concept of pH of the solution.   it is defined as a negative logarithm…

Q: Consider a buffer solution that contains 0.45 M H3PO4 and 0.55 M NaH2PO4. For H3PO4, Ka1 = 6.9E-3,…

A: The given buffer solution has 0.45 M H3PO4 as the weak acid and  0.55 M NaH2PO4 as the conjugate…

Q: If 0.02 M of NaOH will be added to the buffer solution prepared by mixing 0.215M sodium acetate and…

A: the Henderson equation is used to find pH of buffer solution

Q: An analytical chemist is titrating 219.6 mL of a 0.9100M solution of nitrous acid (HNO,) with a…

A:

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 × 10-3, Ka2 = 6.2 x 10-8, and Ka3 = 4.8 x 10-13). To…

A: We have to calculate pka and pH

Q: n analytical chemist is titrating 160.8 mL of a 1.000 M solution of nitrous acid (HNO,) with a…

A: The question is based on the concept of titrations.   we are titrating  a weak nitrous acid with a…

Q: A 25.0 ml sample of 0.100 M lactic acid (weak acid) (HC3H5O3, Pka-3.86) is titrated with 0.100M NaOH…

A:

Q: 00 mL of a buffer solution contains 0.050 mol NaHSO3 and 0.031 mol Na2SO3. (pKa = 7.172). What is…

A: By the Henderson- Hasselbalch equation, pH = pKa + log [salt]/[acid]

Q: Use the Henderson-Hasselbalch equation to calculatealculate the pH of the solution prepared by…

A:

Q: An analytical chemist is titrating 102.2 mL of a 0.5200M solution of nitrous acid (HNO,) with a…

A: For HNO2 Volume, V =102.2 mL = 0.1022 L Molarity, M = 0.5200 M = 0.5200 mol L-1   For KOH Volume, V…

Q: An analytical chemist is titrating 139.4 mL of a 1.100 M solution of nitrous acid (HNO,) with a…

A: When an acid reacts with base, neutralization reaction is seen, it forms salt and water as product.…

Q: An analytical chemist is titrating 185.6 mL of a 1.100M solution of cyanic acid (HCNO) with a…

A:

Q: A solution is prepared by dissolving 0.23 mol of nitrous acid and 0.27 mol of sodium nitrite in…

A: Buffer solution - A solution whose pH is not altered to any great extent by the addition of small…

Q: A buffer solution is 0.100 M in both HC7H5O2 and LIC7H5O2 and has a pH of 4.19. Which of the…

A: The buffer solution is that can resist the small change in PH  by the addition of acid or base.

Q: Which of the following weak acids when paired with its conjugate base would be the best choice for a…

A: Given group of answer choices : a). HClO: pKa = 7.54 b). C5H4NH+: pKa = 5.25 c). HNO2: pKa =…

Q: Calculate the pH of the solution after the addition of each of the given amounts of  0.0603 M HNO3…

A: Given,  Molarity of HNO3 = 0.0603 M  Volume of aziridine (say B) in mL = 60.0 mL  Molarity of…

Q: During an experiment, a student mixed 14.5 mL of a 0.500 M sodium fluoride solution with 15.6 mL of…

A: Given that : Volume of Sodium fluoride (NaF) = 14.5 mL = 0.0145L Concentration of Sodium fluoride =…

Q: A buffer is made by adding 0.18 mol/L of sodium propanoate (NaPr) to 0.12 mol/L solution of…

A: All solutions hold specific characteristics in pH value terms. This value describes how acidic or…

Q: What is the pH of a buffer solution prepared by adding 0.160 moles of HOBr to 175 mL of a 0.640 M…

A: Given data,Moles of HOBr=0.160molesVolume of Solution=175mL=0.175LMolarity of…

Q: A sodium hydrogen carbonate/sodium carbonate buffer system is to be prepared with a pH of 9.89.  The…

A: Answer is explained below.  The given information are as follows:

Q: A buffer solution is prepared by taking 0.250 moles of acetic acid (pKa = 4.76) and 0.400 moles of…

A: From the Henderson-Hasselbalch equation:

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 x 10-3, K2 = 6.2 x 10-8, and Ka3 = 4.8 x 10-13). To…

A:

Q: 20. The pH of buffer solution containing 0.2 mole/ liter of CH;COOH & 0.2 mole/I of CH;COONA has…

A:

Q: Explain the qualitative analysis of group 2 cations

A: Dilute HCl is added to the mixture containing cations. If it dissolves completely, group 1 is…

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.