A 35 mL sample of 0.20 M KOH is titrated with 0.25 M strong acid (HX).  What is the pH of the solution after 23.0 mL of HX (strong acid) have been added to the base?     Group of answer choices 1.26 13.03 12.74 12.33 1.67

Q: HI (aq) + NaOH(aq) Ca (s) + Br₂ (1) eaction. 1 1 CH,(CH,),CH,(g) + 80,(g) – 5CO,(g) + 6H,O(g)…

A: -> When two or more than two species combine to form single species that is Combination equation.…

Q: What is Keq at 298 K for the spontaneous reaction between the following? Pb+2 (aq) + 2e-------> Pb…

A: Pb+2 (aq) + 2e-------> Pb (s) E° = -0.13 VMn+2 (aq) + 2e-------> Mn (s) E° = -1.18 V The…

Q: Question 15 In an experiment, the wavelength of light emitted when a hydrogen atom transitions from…

A: Given: n = 3 to n = 2 λ = 645 nm  To find: Value of Rydberg's const

Q: What is the formation of ammonia (NH3) from nitrogen (N2) and hydrogen (H2)?

A: Ammonia is formed by Habber process from Hydrogen and Nitrogen.  In Haber process an industrial…

Q: What amount of NO and H₂O? (A) 0.10 mol NH, H, reacts with 0.40 mol Oo produce 0.3 0.4 0.3 0.45 4NH3…

A: Given -> Mole of NH3 = 0.30 atm  Mole of O2 = 0.40 atm

Q: Balance the following reaction: C3H5N3O9 (I) --> Edit View Insert Format Tools Table 12pt CO₂ (g) +…

A: Balanced equation is the equation where number of atoms of each element are equal on both sides of…

Q: Choose the best answer. Background correction for atomic spectroscopy is important, because:

A: Option A B and E are correct.

Q: ording to the IUPAC system: ON ding to the IUPAC system: N CH3 CH3

A:

Q: Which shown reaction is incorrectly described acid catalyst This is an example of addition reaction.…

A: Addition reaction : Here two or more molecules are simply added to give a whole molecule.…

Q: Which of the following reaction conditions would result in Markovnikov addition to an alkene? HBr,…

A: Markonikov's product is more substituted product and anti-markonikov one is less substituted product…

Q: Draw structural formulas for the products of the reaction shown below. CH3 | CH3CH₂CH₂C-0- CH3 + HI

A: Ethers reacts with Hydrogen halide to give alkyl halide and alcohol. Alkyl aryl ethers are cleaved…

Q: Balance the following skeleton reaction and identify the oxidizing and reducing agents:   MnO4−(aq)…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: Which degrees of freedom are always in the classical limit and therefore subject to equipartition?…

A: The correct answer is vibrations.   In the classical limit, the degrees of freedom that are always…

Q: the fast, reversible step in an a. dissociation of ES to give substrate (ES --> E+S) b. formation of…

A: An enzyme is a protein molecule that promotes a reaction of another molecule. This binds to the…

Q: The ΔG° of the following reaction is -33 kJ/mol. What is the ΔG (in J) at 348 K if the initial…

A: Check the relation between ∆G and ∆Go first. Then use that relation to find out the value of ∆G.

Q: Predict the products and balance the following reaction: Li + ZnCl2 →

A: Displacement reaction - When a more reactive element displace another atom from a molecule to form a…

Q: Question 15 Complete and balance the following combustion reaction of liquid octane (C8H₁8): C8H180…

A: Balanced chemical equation is the equation in which number of atoms on both side of reactant and…

Q: *Using average bond enthalpies (linked above), estimate the enthalpy change for the following…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: Spell out the full name of the compound.

A:

Q: 1. Determine which reactions will occur or not by looking at the reactants. *Hint: Use your Activity…

A: Metal which is more reactive will displace less reactive metal from its salt solution. In activity…

Q: The equilibrium constant, Kc, for the following reaction is 1.20x10-² at 500 K. PCI5(g) =PC13(g) +…

A: We need to calculate the concentration of reactants and products when 0.266 moles of PCl5 is…

Q: The solubility product constant (Ksp) for the following reaction is 5.61x10-9. What is the Free…

A: Given: Ksp = 5.61x10-9 T = 298 K

Q: An unstable isotope has a half-life of 0.513 min after it is formed. What is the percentage of the…

A:

Q: The vaporization of substance Z is shown below: 2(0)→ Z(g) For this process, AH-39 kJ/mol and AS° =…

A: Using the concept of gibbs free energy at equilibrium, boiling point can be calculated.

Q: Assign oxidation numbers to all the atoms in the following: a) CrO4 2: b) K₂Cr₂O₂: c) Fe3O4:…

A: Oxidation: Increase in +ve oxidation number or decrease in negative oxidation number Reduction:…

Q: Consider the following chemical equation: N2 (g) + 3 H2(g) = 2 NH3(g) The following equilibrium…

A: Using integrated form of van't Hoff equation, enthalpy change of reaction can be calculated.

Q: 16. What is buffer capacity? a. The maximum amount of H+ or OH- ions that a buffer can absorb…

A:

Q: uns case: a noitamolni mori (d)s.863 E6A.13(b) The standard Gibbs energy of formation of PH₂(g) is…

A: Relationship between ΔG ,Q and ΔGo given as ΔG = ΔGo + RT ln Q Where ΔG = change in free energy of…

Q: A bond arises from "sideways" overlap of two parallel p orbitals. The electron density lies above…

A: We need to say what atomic or hybrid orbital make up the pi bond between C and O in carbon dioxide,…

Q: The equilibrium constant, Kc, for the following reaction is 0.0180 at 698 K. 2HI(g) → H₂(g) + 1₂ (9)…

A: Given:  Equilibrium constant, Kc of reaction: 0.0180  Equilibrium constant Kc is concentration of…

Q: Calculate the solubility for Ag2SO4 in 0.44 mol/kg NaCl solution at 25°C, given its solubility…

A: Given in following question a reaction of a sulphuric

Q: 1. Calculate the concentrations of the following solutions. a) NaCl solution containing 0.02 mol in…

A: -> Molarity is number of moles present in 1 Litere of solution.

Q: Provide the correct IUPAC name for the compound shown here.

A:

Q: K Given: Br2 (1) +2e 12 (s) + 2e O -1.63 V O -0.55 V O 0.55 V What is the standard cell potential…

A:

Q: Use the following ABG Normal Values for the following question. HCO3 22 to 26 mEq/L PaCO2 - 35 to 45…

A: Based on the given ABG values, the process that is disturbing the acid-base balance in this case is…

Q: Draw the Lewis structure for the sulfur trioxide (SO3) molecule. Be sure to include all resonance…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: What is the product of this reaction? CH3 H3C-C=CH₂ CH3 H3C-C-OCH3 CH3 CH3 H3C-C-OCH3 OCH3 OCH3…

A:

Q: How many kinds of chemically non-equivalent hydrogens are there in each of the following compounds?…

A:

Q: NEED ANSWERED 3 & 4 Figure C HO 3) What is the stereochemistry of the product formed when the…

A:

Q: For the following electrochemical cell: Ag(s) | Ag+(aq) | | Fe2+(aq) | Fe(s) A. Calculate the Ecell…

A: To determine the deltaG° value , first we will determine the value E°Cell.   The reaction between…

Q: The equilibrium constant, Kc, for the following reaction is 7.00 × 10-5 at 673 K. NH4I(g) NH3(g) +…

A: Given:  Equilibrium constant,  Kc = 7.0 × 10-5  Formula used:  Kc = product of concentrations of…

Q: Q/ Prepare 0.1 N and 0.1 M of 98% H₂SO4 in 250 ml. M.wt of H₂SO4 = 98 g/mol, and its Specific…

A: 98% solution of H2SO4 means 98 g of H2SO4 is present in 100 g of solution.

Q: Which one of these 17 compounds is represented by this IR and this ¹H NMR spectrum?

A: Nuclear magnetic resonance (NMR) spectroscopy is a technique based on the magnetic properties of an…

Q: Aliquid with density 1010 kg/m³ and viscosity 1.2 mPa.s drains from a building through commercial…

A: We have to calculate Reynold's number.

Q: Spell out the full name of the compound.

A: The ball-and-stick model is a molecular model of representing position of the atoms and the bonds of…

Q: N Ph :0: Ph Acid chlorides react with Grignard reagents to yield tertiary alcohols, two equivalents…

A: At first alkyl part of grignard reagent attack to carbonyl centre and then dehalogentaion takes…

Q: Hydrogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

A:

Q: Choose an example of polymorphs. a.graphite and graphine b.diamond and adamant c.pyrite and gold…

A: Polymorphism is the ability of a substance to crystallize into different crystalline forms. These…

Q: 2. how maby grams of dinitrogen tera chloride are needed to fill 7.50 litre flask at 300c if the fas…

A:

Q: Which of the following statements is/are CORRECT? A) Phosphoenolpyruvate carboxykinase is inhibited…

A: 1)The correct answer is (D) A and B.   Phosphoenolpyruvate carboxykinase and pyruvate carboxylase…

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.