The K of bromocresol gteen is 126. x 10-5 At Whot PH WOuld you expect the endlotht for this indicator?

Q: A 50.0 mt of basic solute (K, 158 x 10 ) is titrated with a 25.0 ml of 0.100 M HCI solution. Which…

A: Given: Kb of base solute = 1.58 X 10-9  Volume of base solution = 50.0 mL = 0.050 L…

Q: In the laboratory, a general chemistry student measured the pH of a 0.546 M aqueous solution of…

A: Since you have posted multiple questions which are not sub-parts, we are entitled to answer the…

Q: What volume (mL) of 0.025 M HNO3 is necessary to titrate 5.2 mL of 0.046 M Ca(OH), solution to the…

A:

Q: 9-5. Explain why the indicator cresol red changes color when the pH is lowered from 10 to 6. What…

A: The acid-base indicator changes color due to protonation and deprotonation. Cresol red indicater is…

Q: A buffer solution after the addition of 20.0 mL of 1.00 M NaOH solution to 500.0 mL ot a buffer…

A: Buffer solution shows vary little variation or no change upon addition of an acid or a base.

Q: Why are buffer solutions of increasingly higher pH used to elute the column that generates the…

A: The reason is as given below:

Q: 6- An indicator with acid dissociation constant (5.6×10-6), it's pH range will be ... 3.2-5.2…

A: Given: Acid dissociation constant of the indicator (KIn) = 5.6×10-6 We have to find the pH range of…

Q: Q.1: Determination of % composition of mixture of KI & KNO3 using Eoscein as indicator.

A: Percent composition by mass is given by the percentage composition of a given compound is the ratio…

Q: Data (0) 1. Aoproximate concentration of the HCI solullon in moVL (molarilyj to the nearest 0.1…

A: Given: Concentration of NaOH = 0.1030 M Titration Volumes Trial 1 Trial 2 Trial 3 Acid Volume…

Q: How would you prepare a liter of “carbonate buffer” at a pH of 10.10? H2CO3 ↔ H+ + HCO3-      Ka =…

A: balanced chemical equation, H2CO3 ↔ H+ + HCO3-      Ka = 4.2 x 10-7 HCO3-↔ H+ + CO3-2        Ka =…

Q: During the titration of 25 mL of 0.1 M maleic acid with 0.1M NAOH. We have studied the plot of alpha…

A: The graph of alpha values and Volume is as follows:

Q: Calculate the pH of a formic acid (Ka = 1.8 x 10-4) buffer solution that contains 0.35 mol HCOOH and…

A:

Q: (1) Could you separate the components of a mixture of Mg(OH); and Zn(OH); by using 3M HCI? Briefly…

A: A mixture of inorganic salts can be separated if  1. salts are insoluble in nature in both water or…

Q: Calculate the volume, in milliliters, 0.170 M NaOH that must be added to 303 mL 0.0471 M…

A:

Q: 3. 2.0-g NaF 6H2O is dissolved in enough analytical water to make 250.0- equilibrium concentration…

A: Sodium fluoride is a strong electrolyte and it is formed by the strong base, NaOH, and weak acid HF.…

Q: (iv) mixed with 25.0 mL of 0.100 M barium formate solution. (c) Suggest ONE (1) suitable indicator…

A: (iv) Given that,  Volume of 0.150 M formic acid = 20.0 mL  = 0.02 L Moles of formic acid given  =…

Q: The pKa of the indicator methyl orange is 3.46. Over what pH range does this indicator change from…

A: An indicator depends on its acid strength i.e. pH range where the color of the indicator changes…

Q: Please answer the following questions: 1. The phenolphthalein HIn indicator forms this equilibrium…

A:

Q: 44.00 mL of 0.50 M H2S04 reacts with 0.35 M LIOH and reaches the endpoint using bromthymol blue as…

A: Recall the reaction, 2LiOH + H2SO4 ----> Li2SO4 + 2H2O  Molarity of H2SO4=0.50 M , Volume=44.0 ml…

Q: What is the resulting pH of mixing 50.0 ml 0.0500 M NH4Cl (aq) with 10.0 ml 0.0500 M HNO3(aq)? If…

A: Given :  Molar concentration of NH4Cl = 0.0500 M  Volume of NH4Cl solution = 50.0 ml  Molar…

Q: Calculate the hardness of water in units of mg/L of CaCO3 (see equation 15-7)  if your titration at…

A: Given that the titration is at p H =10 and resultant concentration is 21 mmol/L. The water hardness…

Q: A solution is made by mixing 175 ml of 0.100 M formic acid ( ka = 1.7 x 10^-4 ) with 175 ml of 0.100…

A: Volume of formic acid = 175 mL  Molarity of formic acid = 0.100 M  Volume of sodium formate = 175 mL…

Q: Answer the following in 2 decimal places please: Identify what will be the concentration of…

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

Q: Write the values of Y and X. H2SO4 CH;CH=CH2 + H2O CH3CH-CH2 H HỌ 2-propanol an alcohol The pKa of a…

A: The acid dissociation constant Ka is the representation of acidic strength of a solution and pKa is…

Q: IKalculute the pH and plot the resulting titration curve for Hhe titration of 20ml, o.1l M ammonia…

A:

Q: 1- When 10ml of glucose and 20ml of I2 titrate with 0.1 NaS203, the volume appears 5ml, and when the…

A: Given in following question give some data 10 ml of glucose and 20 ml I2 titration with 0.1 Na2S2O3…

Q: What is the molecular structure of Eriochrome Black T indicator? What are the donor atoms?

A: Molecular structure of Eriochrome Black T indicator and  donor  atoms?

Q: Calculate the titration of 0.1 M 50 mL H3PO4 with 0.1 M NaOH as baseline, pre-end, endpoint,…

A: H3PO4 is a triprotic acid whose dissociation reactions can be expressed as follows.  H3PO4 ↔ H2PO4-…

Q: A certain indicator, HA, has a K₂ value of 4.0 x 10-6. The protonated form of the indicator is red…

A: Given data :  Ka=4.0×10-6pH=7 To find: pKa and color of indicator at pH 7

Q: Phe titration of 22.2mL of aqueous Ool04M BalOH)2 with 0.0833m agueous nitvic acid, calaulate the…

A:

Q: A diprotic indicator H2L has pK,1 of 3.5 and pK2 = 7.5. At pH = 6.0, what is the principal species…

A: The reaction would be:H2L ⇋ HL- + H+    { for  pKa2=7.5  }So,HL- is released in the solutionandH2L ⇋…

Q: 3. Complete neutralization of 10 ml. of phosphoric acid solution by NaOH 0.I N in the presence of…

A: During titration of phosphoric acid we can use either methyl orange and detect first end point…

Q: Phenol red is a common acid-base indicator. It has a pKa equal to 8.000. Its undissociated form is…

A: Solution a)

Q: It is desired to buffer a solution at pH = 4.30. What molar ratio of CH3COOH to NaCH3COO should be…

A: Given;

Q: Three drops of the phenolphthalein chemical indicator should be added to the acidic analyte sample…

A: Phenolphthalein is used as an indicator in acid-base titration. In acidic medium phenolphthalein…

Q: What is the concentration of a solution of 500.0 ml of sol was diluted to 25.00 ml and the con was…

A: Hint Concentration of diluted solution can be determined by using the relation  V1*M1 = V2*M2

Q: 8- Which of the indicator would be most suitable for use during the titration of ammonia with…

A: Given , acid : hydrochloric aid = HCl base : ammonia =NH3

Q: A mixture of NaOH and Na2CO3 requires v1 of 0.5HCLusing phenolphtalein indicator . The same amount…

A: When mixture of sodium hydroxide and sodium carbonate is treated with hydrochloric acid using…

Q: What will be the concentration of satndard AgNO3 if 4.55 mL is used to to turn the color of 12 mL of…

A:

Q: Kb for methylamine at 25°C is 4.4 x 10-4 what is its pH if 0.10M solution is used.

A:

Q: for the following, please identify the titrant and analyte!!!     Prepare a titration for a 5mL…

A: The of any titration is to find out the concentration of the unknown solution using known…

Q: Calculate the volume in liters of 0.545 M KOH necessary to titrate 0.0113 moles of hydrochloric…

A:

Q: If 2 ml of 25 N H2SO4 is transferred to 50 ml volumetric flask and complete to mark with ditilled…

A:

Q: (iii) The pH range of phenolphthalein is 8.2 -10. Give an acid and an alkali for which…

A: When we perform a acid base Titration between a strong acid and a strong base, the pH range near…

Q: A Fajans titration of a 0.7908-g sample required 45.32 mL of 0.1046 M AgNO3. Express the results of…

A: Step : 1            Express the results of this analysis in terms of the percentage of BaCl2·H2O.

Q: Exactly 50.00 mL of an HCl solution required 29.71 mL of 0.01963 M Ba(OH)2 to reach an end point…

A: Balanced chemical reaction will be:

Q: How many moles of HA would need to be added to 444 mL of 0.859 M NaA to produce a solution with a pH…

A:

Q: Methyl orange is an indicator that changes color over a range from pH =3.1 to pH =4.4 . What is Ka…

A: Ka = 1.6 × 10-4

Q: The acid-base indicator ethyl orange turns from red to yel-low over the pH range 3.4 to 4.8.…

A: Buffer solution is a solution consisting of weak acid and conjugate base or weak base and conjugate…

Q: What is the value of Q when the solution contains 2.00 x 10¬³M Ca2+ and 3.00 x 10-² M SO4²-?

A: To find Q?