A buffer contains 0.035 mol of boric acid (pKa = 9.15) and 0.015 mol of sodium borate per liter. (a) Calculate the pH of the buffer. (b) Calculate the pH when 2.5 mL of 0.50 M HCl is added to 0.5 L of the buffer.

Q: B. False 23. The rate of the reaction can be obtained by measuring the rate at which a product is…

A: Explanation :

Q: On the box of a cake mix, the recipe says that it makes 24 cupcakes. When the baker makes the cake…

A:

Q: 22. The reactants in a formation reaction can be elements or compounds as long as they are in their…

A: It is given a statement.we have to select true or false.

Q: When a 15.5 mL sample of a 0.407 M aqueous nitrous acid solution is titrated with a 0.329 M aqueous…

A: Nitrous acid is HNO2, a weak monoprotic acid with Ka = 6.92*10-4 (pKa = 3.16). Sodium hydroxide is…

Q: A Diels-Alder reaction that shows the stereospecificity of the reaction with respect to the…

A:

Q: Draw a Diels-Alder reaction that shows the stereospecificity of the reaction with respect to both…

A: During Diels-Alder reactions, unsaturated substituents such as -COR, -COOR etc of dienophile…

Q: The atoms of different elements have: Group of answer choices A) the same atomic number and same…

A: In modern periodic table, elements are arranged in order of increasing atomic number. Atomic number…

Q: A Diels-Alder reaction that does not produce regioisomers or stereoisomers

A: Diels-Alder reaction: The Diels–Alder reaction is a pericyclic reaction (cycloaddition) between a…

Q: hi i do not understand the words in blue ink written at the bottom can you please re write

A: Ideal gas equation : PV = nRT  where P = pressure of the gas            V = volume of the container…

Q: 1. An unknown liquid is added to a beaker of water. After a few minutes you discover that unknown…

A: Ionic bonds are mainly formed by 's' block elements and 'p' block elements. Covalent bonds are…

Q: The compressibility factor of nitrogen does not exceed 0.9 at 126K and 300 atm True or False? Show…

A:

Q: 4. 5. 6. SO3 + MgCO3 NH,OH H₂O ->

A:

Q: Consider Le Châtelier’s Principle. In which direction does the addition of a competitive inhibitor…

A: In this question, we have to answer In which direction does the addition of a competitiveinhibitor…

Q: 1. Consider the following mechanism: Step 1 Br₂ Step 2 Br + H₂ Step 3 H₂Br + Br a. What is the…

A:

Q: 4. Reaction type: 5. H₂S (aq) + Reaction type: CaCO3 (s)→ CO₂ (g) + Reaction type: 6. C4H10O (g) +…

A: Answer of this question :-

Q: Are we able to completely separate pigments from each other using paper chromatography?

A: Paper chromatography separation of pigments

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Balanced chemical equation: Balanced chemical equation can be define as the reaction in which number…

Q: Which of the structures below (I-V) is expected to be formed after rearrangement of the following…

A: carbocations are rearranged during reaction to get stabilty

Q: Differentiate sigma orbitals and pi orbitals. Explain in paragraph/essay form, provide…

A:

Q: A Diels-Alder reaction that shows the stereospecificity of the reaction with respect to the diene…

A: In stereospecific reactions one stereoisomer gives one product having stereochemistry opposite to…

Q: 21. The specific heat capacity refers to the amount of heat needed to increase the temperature of…

A: Specific heat capacity is the amount of heat energy required to raise the temperature of a substance…

Q: three rate constants are 20 m3/(kg∙hr), 0.5 g/(min∙m3) and 0.03/hr: a) What is the order of reaction…

A:

Q: The reaction PC13(g) + Cl₂(g) = PC15(g) has AH = -87.9 kJ, AS° = -170 J/K, K = 3.32 x 10 at 298 K.…

A:

Q: Which titration curve could describe the titration of a solution of HCI by addition of a solution of…

A: Answer: HCl is a strong acid and KOH is a strong base, so we have to identify the titration curve of…

Q: that will display only the signals in the 'H NMR spectrum. || IV OH A) I B) II C) III D) IV

A: 1. Number of signal dependes upon number of   carbon environment.  2. If there is one type of carbon…

Q: UGREET Experiment 4-Prelab Assignment 1. A 0.219 g sample of an unknown organic acid was titrated…

A: Given -> Weight of sample = 0.219 gm  Molarity of NaOH = 0.0934 M  Volume of base = 39.52 ml =…

Q: The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look…

A: The mass of sucrose taken =  200 g  The chemical formula of sucrose = C12H22O11

Q: nsider the following system at equilibrium where AH = 108 kJ, and K. = 1.29 x 10-2, at 600 K: COC1₂…

A: Given -> COCl2(g) <-----> CO(g) + Cl2(g)  ∆H° = 108 KJ  Kc = 1.29 × 10-2 T = 600 K

Q: You are studying a sample of granite that is about 2.1 billion years old. You know it contains some…

A: Here granite containing uranium -235 is formed 2.1 billion years old. We have to determine the…

Q: Convert the condensed formula below to a lewis structure. (CH3)2CHCCCH,CHO

A: Given -> Condensed formula -> (CH3)2CHCCCH2CHO

Q: 1. How many types of Carbon and Hydrogen atoms are in the following compound? # Chemically different…

A: In the given compound the carbonyl group is attached to the same types of alkyl groups. Hence both…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A:

Q: 1. Consider a solution (20 ppm atrazine, Methanol), (fw atrazine 215.68) a. What is the…

A: 1) Parts per million (ppm): It is defined as the parts of solute in one million parts of solution.…

Q: OH 0.

A: Chiral center is carbon that have four different atoms or groups of atom attached. Chiral center is…

Q: to 19.8 °C. Which statement is correct? 4. A chemical reaction is carried out in a coffee cup…

A: Here we are required to find the statement which is correct.

Q: Using the provided table and the equation below, determine the heat of formation (in kJ/ mol) for…

A:

Q: How did you convert the c to k that's my only question like 25.5c to k and you got 298.65?

A: Answer: In this question we have to understand the conversion of one temperature unit into another.

Q: Question 1 of 11 What quantity in moles of sodium atoms do you have if you have 5.00 x 1023 atoms of…

A:

Q: The reaction Br03 (aq) + 5 Br (aq) + 6 H*(aq) → Br₂(aq) + H₂O(1) szero order in BrO3, second order…

A: Rate law states that rate of the reaction is directly proportional to the product of reactant each…

Q: For many purposes we can treat nitrogen (N₂) as an ideal gas at temperatures above its boiling point…

A: Given data : Initial temperature(T1) = -12.0°C = (-12+273)K = 261 K Final temperature (T2) = 13.0°C…

Q: Determine the point group of each molecule. Show the different symmetry elements. 6. PF5

A: Symmetry elements:  Axis of rotation: round around which gives an indistinguishable molecule.  Axis…

Q: Answer the following about the titration plot shown below, involving a monoprotic acid and base. 20…

A: Given , Titration curve of monoprotic acid and base.

Q: The maintenance dose of Oxtriphylline is 13.2 mg/kg/day or 800 mg. whichever is less, in bid dosing.…

A: A question based on dimensional analysis that is to be accomplished.

Q: Consider Le Châtelier’s Principle. In which direction does the addition of an uncompetitive…

A: Given that, an enzyme catalysed equilibrium reaction, E + S ⇌ ES. We have to in which direction the…

Q: Suppose Gina climbs a high mountain where the oxygen partial pressure in the air decreases to 70…

A: Given data :

Q: 4. Would the separation of the grape soda dyes work equally well if you reversed the order of IPA…

A:

Q: 1. Calculate the percentage of Oxygen content on the following compounds, write the correct formula.…

A:

Q: If the ground state of a reaction's product is lower than the ground state of the substrate, which…

A: Ground state of product is lower than Ground state of reactant.

Q: Calculate the value of AS for three moles of an ideal gas compressed reversibly and isothermally…

A: Given,  Initial volume = V1 = 75 L  Final volume = V2 = 2.5 L  Number of moles of gas = n = 3 mole…

Q: g. Br -CH3 i. H₂C Br I CH CH Cl CH₂CH3

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

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.