M anserine buffered solution, pH 7.20. Answer the below questions: Volume of stock solution needed = ____ mL Volume of HCl needed to adjust the imidazole group = ____ mL Volume of HCl needed to titrate the

Q: Ion Ca²+ Mg2+ Na* K+ CI SO4²- HCO3 CO3²- PH Conc mg/L 140 65 60 10 200 140 39.1 ? 11.0 Knowing that…

A: Given Data  Ion Concentration mg / L Ca2+ 140 Mg2+ 65 Na+ 60 K+ 10 Cl- 200 SO2-4 140…

Q: A chemist titrates 150.0 mL of a 0.6305M dimethylamine ((CH3)2NH) solution with 0.3401 M HNO3…

A: we have to calculate the pH of solution

Q: on 4. A weak acid (HA) has a pKa of 5. Suppose you have 120 mL of a HA and its conjugate base A- at…

A: Given,The pKa of the weak acid = 5The pH of the buffer= 5.6The volume of solution= 120 mLThe volume…

Q: What volume (in mL) of 9.2 M HCIO4 would be required to make 500.0 mL of a solution with a pH of…

A: To solve this problem, we first need to use the pH to calculate the concentration of H+ ions in the…

Q: An analytical chemist is titrating 82.4 mL of a 0.6300M solution of ethylamine (C₂H5NH₂) with a…

A: Given: Molarity of ethylamine = 0.6300 M Volume of ethylamine = 82.4 ml Molarity of HNO3 = 0.1900 M…

Q: A liter of 0.200M aquas solution of the triprote acid H3PO4 is being titrated with 1.00M aquas…

A: H3PO4 is a triprotic acid and hence undergoes dissociation in three steps. The pH of the solution is…

Q: Calculate the pH at 25 °C of a 0.80 M solution of potassium butanoate (KC, H,CO,). Note that…

A: Given,  [KC3H7CO2] = C = 0.80 M  pKa value of HC3H7CO2 = 4.82  Calculate the pH = ?

Q: Post-lab: plot pH values (y-axis) against total volume of added NaOH. From the graph find…

A: Equivalence point: The point in titration at which the amount of titrant added is just enough to…

Q: An analytical chemist is titrating 201.5 mL of a 0.8700M solution of isopropylamine ((CH3)₂CHNH₂)…

A: Given that : The volume of isopropylamine = 201.5 mL The molarity of isopropylamine = 0.8700 M The…

Q: A solution contains compound X, which is a weak base, and its conjugate acid, in a molar ratio of…

A: Given, A solution contain compound X (weak base). Molar ratio of weak base: conjugate acid = 1 : 5…

Q: How many grams of methanesulfonic acid and sodium lactate must be added to 1L of water to produce a…

A: NOTE: methanesulfonic acid will not make a buffer with sodium lactate because the weak acid and the…

Q: Formic acid, HFor, has a Ka value of 1.8 # 10-4 . You need to prepare 150 mL of a buffer hav-ing a…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: Please give clear handwritten answer) 5 mL of 1 M NaOH solution is added to 200 mL of a 0.150M…

A:

Q: Identify the species represented by each curve in the fractional composition diagram of a…

A:

Q: Which of the following combinations would be the best to buffer the pH of a solution at…

A: To determine the best buffer, we have to find the pKa. pKa gives us the ideal of working range of…

Q: A chemist titrates 50.0 mL of a 0.1413 M methylamine (CH, NH,) solution with 0.5760 M HNO, solution…

A: The equivalence point of weak base and strong acid titration is the point at which equivalents of…

Q: Phosphoric acid is a triprotic acid with the Ka values of 7.25 10-3, 6.31 10-8 and 3.98 10-13…

A: Millimoles of H3PO4 taken   =Molar concentration of acid×Volume of acid=0.1000 M×25 mL=2.5 mmol

Q: Calculate the pH of 0.340 L of a 0.16 M acetic acid - 0.3 M sodium acetate buffer before (pH₁) and…

A: Given,Molarity of acetic acid = 0.16 MMolarity of sodium acetate = 0.30 MVolume of the buffer…

Q: Question 35 Identify the indicator that has two endpoints. (Refer to Fig. 14.19 in the ebook) 1…

A: Solution 35)Indicators and their ph ranges are:Phenol red: pH range 6.8 to 8.2.Alizarin yellow R: pH…

Q: If the pKa of the indicator is approximately 6, to which of the following equivalence point will it…

A: Given, pKa = 6 At equivalence point,  pH = ?

Q: None

A: To ensure a comprehensive understanding of the buffer properties and related calculations, here's a…

Q: 1 6. The pKa of benzoic acid is 6.5 x 10-5. Prepare an ICE table and calculate the pH of a 0.10 M…

A:

Q: What is the pH after a 30.0 mL of 0.10 M HCOOH solution is titrated with 20.0 mL of 0.20 M NaOH?…

A: Answer: When acid and base solutions are mixed then neutralization reaction takes place and pH of…

Q: Explain in step-by-step detail with numbers (e.g, masses and volumes) how you would prepare a 1-L…

A: The Henderson-Hasselbach equation is used to prepare a buffer. pH=pKa+log[conjugate base][acid]pH=pH…

Q: (a) What is the concentration of the Acid? D.l [=Mores しLQrs ミ 20 O.005 BasE PL (b) What is the pH…

A: (a)  Reaction between NaOH and H2CO3…

Q: What is the weight NaCH3COO of that must be added to 750.0 mL of 0.180 M acetic acid to form a pH =…

A:

Q: Identify the species mpresented hy ench eurve: in the fractional composition dingram of a monoprotic…

A:

Q: Oxalic acid, H2C204, has acid dissociation constants of Ka1=5.90×10-2 and Ka2=6.40x10-5. Calculate…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Given the above data, the second derivative suggests the propionic acid had a concentration of:…

A: As, volume of propionic acid = 20ml Molarity of propionic acid      = M1 Molarity of NaOH = 0.1M…

Q: How many grams of NH4Cl (molecular weight = 53.496 g/mol) have been dissolved in 300ml of 0.20 M NH3…

A: The given buffer solution is a mixture of salt NH4Cl ( or NH4+)  and  base NH3 . The pOH for the…

Q: Answer the following questions: In a laboratory scale, a biochemist was asked to study the structure…

A: #(a): Given the desired pH of the buffer solution = 7.45  Total concentration of the buffer, C =…

Q: A chemist titrates 50.0mL of a 0.4846M ethylamine solution with 0.5693M HNO3 solution at 25*C.…

A:

Q: How many grams of the conjugate acid phosphate salt would you need to prepare 100 mL of a 0.10 M…

A: Step 1:Answer:Buffer solution is a type of solution that resists the change in its pH on adding…

Q: A diprotic base (B) has pK, values of 3.33 (pKpi) and 6.66 (pK62). Which of the equalities is true…

A:

Q: Buffer A: CH3COOH 40.0 mL; NaOH 20.0 mL; H2O 20 mL Buffer B: CH3COOH 40.0 mL; NaOH 30.0 mL; H2O 10…

A: Acidic buffer is a mixture of weak acid and its salt with a strong base.(a mixture of acetic acid…

Q: Oxalic acid, H2C204, has acid dissociation constants of Ka1=5.90x10-2 and Ka2=6.40x10-5. Calculate…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Prepare 100 ml each of 0.1 M HCL and 0.1 M NaOH.

A: The given problem can be solved by using the formula given below as; Molarity=Moles of soluteVolume…

Q: Write the balanced equation for each reaction and calculate the equilibrium constant for each…

A:

Q: The value of K, at 25°C for proplonic acid (CaisCOgH) is 1.34 x 10. What is the pH of a 0.02019M…

A: Answer: This question is based on the understanding of Henderson-Hasslebalch equation that we use…

Q: You are studying a (4.720x10^-1) M solution of hydroxylamine (NH2OH). The pK, of this solution is…

A:

Q: The pH of 300 mL solution made of 0.63 M acetic acid and 0.96 M potassium acetate is (K₂ = 1.8 x…

A:

Q: 1. Why use M.O and Ph-Ph indicators? Explain that on titration curve. 2. How many milliliters of HCI…

A: Hello. Since the question has multiple parts, we will solve first question for you. If you want…