Which one of the following indicators is best suited for titrating 0.05 M methylamine (pK, = 3.19) with 0.05 M HCI? A. Bromophenol blue, pKa = 3.9 B. Methyl red, pKa = 5.0 O C. Phenol red, pK, = 7.9 O D. Bromocresol purple, pKa = 6.3 OE. Alizarin yellow, pK, = 11.2 O O

Q: 1.00 mL of 12.0 M HCl is added to 1.00 L of a buffer that contains  0.100 M  HNO2 and 0.200 M…

A:

Q: 2). What is the pH of 0.250L of a buffer that is 0.0200M boric acid H3BO3 and 0.250M sodium borate?…

A:

Q: Which one of the following indicators is best suited for titrating 0.05 M pyridine (pKb = 8.82) with…

A:

Q: 3.) What is the pH at the equivalence point for the titration of 50.0 mL 0.20 M nitrous acid by 0.20…

A:

Q: Calculate the pH of an acetic acid/acetate ion buffer with the following concentrations: acetic acid…

A: Note - Since you have asked multiple question, we will solve the first question for you. If you…

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 x 10-³, K₁2: = 6.2 x 10-8, and K₁3 = 4.8 x 10-13). To…

A: Phosphoric acid is a triprotic acid. Given Ka1 , Ka2 and Ka3 values.  To find the pH of a buffer…

Q: Consider a titration of 40.00 mL of 0.1250 M Na2CO3 with 0.4000 M HCl.  Carbonic acid (H2CO3) has a…

A: The number of milliequivalents of sodium carbonate Na2CO3 = 40.00 x 0.1250 = 5 mmol The number of…

Q: In a reaction 45.0 mL of 0.3M of HC2H3O2 is titrated with 0.2M KOH solution. Ka= 1.8x10^-5 1) what…

A: Answers are explained below.

Q: Which of the following mixtures of acids exhibit(s) two end points when titrated with 0.10 M NAOH? O…

A: Option b is correct.

Q: A flask contains 50 mL of a buffer that is 0.1 M in acetic acid and 0.20 M in acetate ion. What will…

A:

Q: molar solubility

A:

Q: Which indicator would be the best to use for a titration between 0.30 M (CH3)2NH with 0.30 M HI? You…

A: An indicator gives the information about the equivalence point in an acid base titration by changing…

Q: Which one of the following indicators is best suited for titrating 0.40 M ammonia (pKb = 4.74) with…

A: The chemical reaction occurs in the given titration (strong acid+weak base) is: NH3 + HCl = NH4Cl…

Q: Calculate the pH of 1.00 L of a buffer that contains 0.110 M HNO2 and 0.185 M NaNO2. What is the…

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

Q: 50.0 mL of HCIO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the endpoint…

A: 50.0 mL of HClO2 is titrated with 16.38 mL of 0.25 M NaOH before the color change of the enpoint…

Q: A mixture contains initially benzoic acid C6H5CO2(weak acid), Ka = 6.28 x 10^-5, and its…

A: Given data :  Ka of benzoic acid = 6.28 x 10^-5 , concentration of benzoic acid = 0.250 M…

Q: What volume of 1.35 M HCI must be added to 0.264 L of 0.213 M dimethylamine to produce a buffer with…

A: We are asked to find the volume of 1.35 M HCl that must be added to 0.264 L of 0.213 M dimethylamine…

Q: How many grams of solid sodium nitrite should be added to 2.00 L of 0.117 M nitrous acid solution to…

A: Here we are required to find the mass of sodium nitrite needed to prepare buffer of pH =4.25

Q: What is the relationship between pAg and pCl at the equivalence point in the titration of chloride…

A: Volumetric method based upon the formation of precipitate is called " precipitation titration "

Q: Calculate the pH of a buffer that contains 1 x 10-3 M acetic acid (CH3COOH) and 1 x 10-4 M sodium…

A:

Q: How many grams of solid sodium hypochlorite should be added to 1.50 L of a 0.185 M hypochlorous acid…

A: The given problem can be solved by using Henderson-Hasselbalch equation as; pH = pKa + log conjugate…

Q: many grams of solid sodium fluoride should be added to 0.500 L of 0.124 M hydrofluoric acid solution…

A: The objective of this question is to determine the amount of solid sodium fluoride (NaF) that should…

Q: Calculate the pH of 1.0 L of a buffer that is 0.130 M  HNO2 and 0.170 M  NaNO2. What is the pH of…

A: Given   The volume of buffer is 1.0 L. The molarity of HNO2 is 0.130 M. The molarity of NaNO2 is…

Q: What is the maximum concentration of Ag+ that can be added to a 0.00650 M solution of Na₂CO3 before…

A: Answer: At the saturation point  ionic product of silver carbonate will become equal to its…

Q: A 20.0 mL sample of 0.150 M ethylamine is titrated with 0.0981 M HCI. What is the pH after the…

A: Given  mmoles of base = 0.15 M x 20 mL = 3 mmoles of acid = 0.0981 M x 5 mL = 0.4905…

Q: Calculate the [H3O+] of 114.48 mL of a buffer initially consisting of 0.1320 M NH2OH and 0.1429 M…

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

Q: Consider the titration of 500 mL of 100 mM boric acid. The pka of boric acid is 9.23. What will the…

A: Boric acid formula is  which react with sodium hydroxide to form .Reaction is

Q: Which of the following combinations would make a buffer closest to pH 5.0?

A:

Q: The pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.305 mol of Na in 2.00 L of…

A: Given,  The pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.305 mol of NaA in…

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:

Q: 1. 20.0 ml of 0.500 M Acetic Acid (CH3COOH) is titrated with 0.500 M KOH. Find the pH a. Before…

A:

Q: 9. Consider the titration of a sample of a weak acid with a strong base (titrant). What is the…

A: 9. A weak acid is titrated with a strong base.  Here, we have to select the correct option for the…

Q: Ammonium chloride has a pKa of 9.26. NH4+ = NH3 + H+. One adds 3.35 grans solid NH4Cl to 500.0 mL of…

A: Buffer system is a solution which resist the change in pH of solution upon addition of small amount…

Q: Henry titrated 50.00 mL of 0.25 M formic acid with 0.50 M LIOH. Formic acid is monoprotic and has a…

A:

Q: How many grams of solid potassium nitrite should be added to 1.00 L of a 0.221 M nitrous acid…

A: Using Henderson hasselbalch equation, we have:    For acidic buffer:    pH = pKa + log[salt]/[acid]

Q: What is the ph of a buffer composed of 1.00M NH4 and 0.50M NH4Cl? Kb=1.85x10^-5

A: The base ionization constant for acid is 1.85×10 -5.

Q: A 20.0 mL sample of 0.150 M ethylamine is titrated with 0.0981 M HCl.What is the pH after the…

A: The volume of 1 L is equal to 1000 mL. The number of mole (n) of ethylamine is calculated as shown…

Q: What is the pOH of a buffer that consists of 0.275 M methylamine CH3NH2 and 0.461 M methylammonium…

A: Concentration of methylamine [CH3NH2 ] = 0.275 M Concentration of methylammonium chloride [CH3NH3Cl…

Q: A buffer is formed by dissolving 0.105 moles of HCIO, hypochorous acid; and 0.115 moles of NaCIO,…

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

Q: Maria titrated 40.00 mL of 0.50 M lactic acid with 0.25 M NaOH. What is the pH of the initial acid…

A: we have to calculate the initial pH of solution

Q: For the titration of a weak acid with a strong base, the pH at the midpoint was 5.06. What are the…

A: I

Q: Which one of the following conditions is always true for a titration of a weak acid with a strong…

A: Weak acid is acid that give less hydrogen  ion concentratuon in solution  and strong  base is the…

Q: Suhe you dissolve 0.235 g of the weak acid benoic acd, CyCo, in enough water to make 1.00 10 m of…

A:

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for