What mass of the salt, N a A would you have to added to 0.10 M H A (weak acid) with a volume of 127 mL to make a buffer with a pH of 4.54? The K a of H A is 5.08E-5. Assume there is no change in volume. The molecular weight of Na A is 138.27 g/mol.

Q: 7. You are given a 500 ml solution of 0.1 M HNO3 and an indicator HIn (Ka = 3.2x10) which changes…

A: The weak acids or bases that have different color in their dissociated and undissociated forms are…

Q: A chemist,, Wishes to prepare 100.0 mL of a buffer of pH 10.0000 using the base methyl amine,…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Volume…

Q: If the volume of blood in a normal adult is 5.0 L, what mass of HCl can be neutralized by the…

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Q: Blood is buffered by carbonic acid and the bicarbonate ion. Normal blood plasma is 0.024 M in HCO3-…

A: The given pKa1 is 6.1 Concentration of HCO3-is 0.024 M Concentration of H2CO3 is 0.0012 M a. pH of…

Q: How many g of sodium formate should be added to 250 ml of 0.2 M hydrochloric acid solution to obtain…

A: Given,  Volume of HCl = 250 mL  Molarity of HCl = 0.2 M  pH = 4.3  Mass of sodium formate in g = ?

Q: The pK, value for HF is 3.14. Would a buffer prepared from HF and NaF with a pH of 1.14 be…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A few mL of 0.800M HCl are added to 20mL of 0.800. NaC2H3O2. Will the initial pH of the 0.800M…

A: pH is used to determine the concentration of hydronium ion. pH for acid is less than 7. pH for base…

Q: a buffer solution consisting of 0.15 moles of ammonia dissolved in half a liter of water. how much…

A: A buffer solution s composed of the weak acid and its conjugate base or weak base and conjugate…

Q: A 0.338 g sample of an unknown triprotic acid dissolved in water is titrated to the second…

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Q: You are asked to prepare a pH = 3.00 buffer solution startingfrom 1.25 L of a 1.00 M solution of…

A: (a) Given: Concentration of HF – 1.00 M pH of the buffer solution = 3.00 Volume of solution = 1.25 L…

Q: A buffer is made by adding 0.300 mol CH3COOH and 0.300 mol CH3COONa to enough water to make 1.000 L…

A: Given: A buffer is made of 0.300 mol CH3COOH and 0.300 mol CH3COONa.  pH of buffer is 4.74 Convert…

Q: 2. a) Calculate the pH of 0.12 mol/L ethanoic acid (K₂ = 1.7 x 105 mol/L). b) Calculate the mass of…

A: Since the given question is a multipart question, hence I solved first three parts according to…

Q: How many moles of potassium hydroxide would have to be added to 150 mL of a 0.363 M hydrocyanic acid…

A: Buffer solutions are the solutions containing a mixture of weak base and its conjugate acid or a…

Q: I need assistance with getting to the answer of question 5, please. See attached image. Thank you!

A: Given information,The concentration of NaOH is 0.10 M.Volume of formic acid is 20 mL.The…

Q: A buffer is made by mixing 5.0 mL of 3.0 MNH,(aq) with 10 mL of 1.44 MNH,Cl(aq). What is the pH of…

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Q: 2) What is the pH for a 400 ml solution of 1.6 M Benzoic Acid if you added 175 grams of conjugate…

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Q: The conjugate base, A⁻ of a certain weak acid, HA has the molar mass 67.997 g/mol. What mass of this…

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Q: Titrate in 26 ml of 2.2 M NaOH into 1200 ml of .5M HCO2H, what will the pH?

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Q: A handbook states that to prepare 100.0 mL of a particular buffer solution, mix 63.0 mL of 0.200 M…

A: Given,  Volume of the buffer = 100.0 mL  Volume of the HC2H3O2 = 63.0 mL  Molarity of HC2H3O2 =…

Q: 4. Formic acid, HFor, has a K, value equal to about 1.8 × 10¬4. A student is asked to prepare a…

A: A buffer solution is formed by the mixture of acid and its conjugate base in such a way so that it…

Q: Please answer 1A, 1B, 1C, and 1D

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

Q: In a titration of 32.0 mL of a 0.250 M solution of a triprotic acid H,PO, (phosphoric acid) with…

A: Given- Volume of  H3PO4 =32.0 mL  Concentration of H3PO4 =0.250M Concentration of NaOH=0.800 M

Q: The figure below is an example of a titration curve for Tating trorote acid witha stong base 10 10…

A: We are given titration curve for the titration of unknown acid(s) with a strong base.  In a…

Q: What is the pH of a buffer produce by mixing 0.1330 mole of HN 3 with 0.1396 mole of LiN 3 and…

A: Given, moles of acid (HN3) = 0.1330  Moles of conjugate base = 0.1396

Q: How many grams of NaHCO3 should be mixed with 4.500 g of NaCO3 to produce 150.0 mL of buffer with a…

A: The given weight of Na2CO3 is 4.500 g. The molar mass of Na2CO3 is 105.98 g/mol. The formula to…

Q: What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 50.00 mL of 0.100 M…

A: Since the moles of acetic acid = molarity of acetic acid X volume in L = 0.1 X 30/1000 = 0.003 And…

Q: HCl and Na2CO3 undergo a neutralization reaction. To neutralize the acid and base, 14.4 mL of…

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Q: A solution is made by mixing 50.0 mL of a stock solution of 2.0 M K2HPO4 and 25.0 mL of a stock…

A: Buffer solutions: are defined as the aqueous solution which contains the mixture of the weak acid…

Q: What is the pH of a buffer system prepared by dissolving 12.00 grams of NH4Cl and 40.00mL of 12 M…

A: Note - Since you have asked multiple questions, we are supposed to solve only the first question for…

Q: How many grams of dry NH,Cl need to be added to 1.60 L of a 0.100 mol L- solution of ammonia, NH3 ,…

A: We have a buffer solution of base NH3 and salt NH4Cl.      From henderson hasselbalch equation ,…

Q: Consider the titration of 50.00 mL of 0.100 M benzoic acid (HC7H5O2, Ka = 6.3 × 10−5) (aq) with…

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

Q: If you wanted to create a buffer solution based on H2S/HS- with a pH 7.7, what mass of Nas would you…

A: Given: Volume of solution = 300 mL = 0.3 dm3                                (Since 1 dm3 = 1000 mL)…

Q: Calculate the pH of a solution containing 18 mL of 0.43 M of a weak weak base B OH, like NH,OH, or…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A buffer solution is composed of 0.1 M CH3OOH and 0.2 M CH3COONA а.) What is the pH of this buffer?…

A: As per rule only three subparts of the first question can be answered. pH = pKa + log [salt] /…

Q: 4) Calculate how much 1.00 M CH3COONA solution, in mL, you would need to add to 10.00 mL of a 1.00 M…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What volume of 0.50 M HNO3 should be added to 200. mL of 0.25 M NH3 in order to create a buffer with…

A: Given, pH of the buffer= 9.0, pOH = 14 - pH = 5.0 Volume of 0.2 (M) NH3 = 200 mL = 0.2L, pKb (NH3) =…

Q: An analytical chemist is titrating 122.4 mL of a 0.2000M solution of propylamine (C,H,NH,) with a…

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Q: Bider the litrahion of 100.6 ml of 0.200 M acetic acid (K, = 1.8 x 10) by 0.100 M KOH. Calculate the…

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Q: A 30.00-mL sample of 0.125 M HCOOH is being titrated with 0.175 M NaOH. What is the pH after 23.0 mL…

A: pH is equal to negative logarithm of hydrogen ions

Q: A 20.00 mL of 0.100 M diprotic weak acid H2A is titrated with 0.200 M NaOH. The volume of the NaOH…

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Q: An aqueous solution contains 0.305 M methylamine (CH3NH2). How many mL of 0.365 M hydroiodic acid…

A: Interpretation-  To determine the volume ( mL) of 0.365 M hydroiodic acid would have to be added to…

Q: 4. Twenty milliliters of 0.50 N HOAC is diluted with water to 100 mL, and the resulting solution is…

A:

Q: A student prepares an 750.0 mL buffer solution with a pH of 4.85 by adding sodium acetate to a…

A: The buffer containing acetic acid (a weak acid) and sodium acetate (salt of acetic acid with NaOH)…

Q: A buffer solution consisting of 0.15 moles of ammonia dissolved in half a liter of water. How much…

A: Calculation of mass of ammonium chloride: A basic buffer solution is made if we mix ammonia and its…

Q: How many moles of sodium acetate must be added to 2.0 L of 0.10 M acetic acid to give a solution…

A: Calculation of no. of mol of acetic acid: No. of mol=Molarity×Volume=0.10 mol/L×2.0 L=0.2 mol…

Q: Ammonia is a convenient buffer system in the slightly basic range. (a) What is the pH of a buffer…

A: Given, mass of NH4Cl=46 g moles of NH4Cl=46 g53.49 g/mol=0.8599 mol molarity of NH3=0.920 M Volume =…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.479 M hypochlorous acid…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Q: A chemist starts her experiments with 25.00 mL of 0.125 mol L-1 NaCN solution. The pKa of HCN =…

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Q: sodium dihydrogen phosphate monohydrate, ?a=6.23×10−8, 2.00 M disodium hydrogen phosphate…

A: The acid given is sodium dihydrogen phosphate monohydrate i.e. NaH2PO4·H2O. And the conjugate base…

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.