Phosphorous acid, H₂PO₂ (aq), is a diprotic oxyacid that is an important compound in industry and agriculture. pKal pka2 1.30 6.70 Calculate the pH for each of the points in the titration of 50.0 mL of 2.1 M H₂PO₂ (aq) with 2.1 M KOH(aq). before addition of any KOH: after addition of 50.0 mL KOH: after addition of 100.0 mL KOH: HO- -OH H after addition of 25.0 mL KOH: after addition of 75.0 mL KOH:

Q: Calculate the gibbs free energy for the complete combustion of lactic acid at 400K

A: given Calculate the gibbs free energy for the complete combustion of lactic acid at 400K

Q: Ni(CO)4(g) → Ni(s) + 4CO(g)

A:

Q: What is the desired formula of an unspecified monosaccharide when its number of carbon atoms is 5?…

A: Monosaccharides are basically monomers of carbohydrates and the simplest form of sugar. They are…

Q: Choose the word from the word bank below that best matches each statement. Constant Equilibrium…

A: Solution: a)When the rate of forward reaction will become equals to rate of backward reaction the…

Q: Which of the following will show a Tyndall Effect? Select the correct response: Aqueous solution of…

A: Tyndall effect is an optical property of a colloidal solution. When a beam of light passed through a…

Q: Mr. Kim added 50.0 ml of alcohol with enough water to make a 400 ml of solution. What is the…

A: Given: Volume of alcohol = 50.0 ml Volume of solution = 400 ml

Q: Use the phase diagram for CO2 to answer the following. 2. At what temperature does sublimation (at 1…

A: We are given the phase diagram of CO2 showing all the three phases, triple point, and critical…

Q: A chemist received a report from an analysis involving the iron-phenanthroline method, containing…

A: A question based on absorption that is to be accomplished.

Q: pK₂ = What is the color of this indicator in a solution with pH = 4?

A:

Q: Question 6 of 9 Identify the functional groups in the given orga H3C 4₂ Select the correct response:…

A:

Q: 1. Draw 3 isomers of C7H12O2 then state where you will dispose it (the kind of waste disposal should…

A:

Q: Name this aromatic compound: OH CI NO₂ ΝΟ

A:

Q: Which salts will be more soluble in an acidic solution than in pure water? Sn(OH)₂ AgCl CsC104…

A:

Q: . In a 2.000-Liter vessel at 226 °C, a mixture of 0.2000 mol of CO2, 0.1000 mol of H₂ and 0.1600 mol…

A: 1. The initial pressure   PV = nRT P = (nRT)/V   Pco2 =(nco2* R* T)/ V Pco2 = (0.2* 0.0821* 500)/ 2…

Q: A range of molecular weight markers will enable the determination of the protein size (see below)…

A: The upper protein have high kDa value . and the lower protein have low kDa value

Q: 1. A buffer solution of pH 7.30 will be prepared from 50.00 mL solution of 0.075 M NaH₂PO4 (K₂ =…

A: Given : pH = 7.30 Ka = 6.3 ×10^-8 Molar mass of NaH2PO4 = 119.0 g/mol Volume = 50.00ml Moles of…

Q: What do you call the substance in which the colloidal particles are distributed? Select the correct…

A:

Q: ADVANCED MATERIAL Designing a galvanic cell from two half-reactions A chemist designs a galvanic…

A:

Q: Identify the most stable conformation. Cis-1,2-dimethylcyclohexane Trans-1,3-dimethylcyclohexane…

A:

Q: Which of the following chemical elements has the highest tendency to loss electrons? Al. Li. Mg.…

A: The correct answer is given below

Q: The gravimetric factor used to express CoCBr6·H20 in a sample that is finally weighed as PbClBr is…

A: Gravimetric factor

Q: Q- 0.05 N AgNO3 titrated with (10 ml) NaCl. Calculate the N of NaCl? [when volume of AgNO3 titrated…

A: 1 mol of AgNO3 reacts with 1 mol NaCl to form 1 mol of AgCl.   For NaOH and AgNO3, molarity and…

Q: What is the molarity of a solution that contains 4 moles of solute in 2 liters of the solution?…

A:

Q: Which one of the following initiators can be used for free radical chain-growth polymerization? a)…

A:

Q: 1. Answer BOTH parts a) and b). a) i) Explain the difference between spin-lattice relaxation (T₁)…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of…

A:

Q: Andy and his college friends decided to go on a summer vacation after a long and stressful final…

A: Select the correct answer :

Q: Water required 120.5 seconds to flow through a viscometer and the same volume of acetone required…

A:

Q: A chemist dissolved 0.08346g of SrCl₂ (FW 158.53) and treated it with excess AgNO3 (FW 169.87) to…

A: Given: Mass of SrCl2 = 0.08346 g Mass of precipitate AgCl =0.143 g FW of SrCl2 =158.53 FW of AgNO3 =…

Q: The benzene radical anion C₂H, has a g-value of 2.0025. At what field would you search for resonance…

A:

Q: Hide answer choices (A) 27 PC B PC/27 C 3 PC (D) PC/3

A: Ideal gas law is law which obey gas laws under all conditions of temperature and pressure.

Q: 27 °C, 500 cc of H2, measured under a pressure 400 torr, and 1000 cc of N2, measured under a…

A: T = 27°C = 27 + 273 = 300 K V1= 500 cm3 = 0.500 dm3 = 0.500 L (1dm = 10cm ,1dm3 = 1L) P1= 400 torr…

Q: H3C D HCH3 C₂H5 A [1,5-H]

A:

Q: Solve for the dissolved oxygen content of the water sample in Day 1 if the Na₂S₂O3 titrant (0.1152…

A: Given as The volume of Sample=30 mL Three readings of the sample are 10.28 mL, 9.84 mL and 10.02 mL…

Q: Draw the R and S isomers of C9H19F then state where you will dispose it.

A: According to priority rules, R and S are assigned on the basis of priority given to the 4 different…

Q: 1. Draw 3 isomers of C7H12O2 then state where you will dispose it (the kind of waste disposal should…

A: Given in following question a compound C7H12O2 draw given compound 3 isomers where you will dispose…

Q: State whether if its true or false. 1. According to the kinetic molecular theorv of matter, the…

A: 1) According to the kinetic molecular theory of matter, the higher the temperature of a substance,…

Q: Which is true about the freezing point of a solution and the freezing point of a solvent?. Select…

A: Which one of the following is correct answer

Q: Calculate the pH at the equivalence point for the titration of 0.180 M methylamine (CH3NH₂) with…

A: pH at equivalence point can be calculated by considering the species present.

Q: (c) Provide the missing reagents for the synthetic transformation shown below, along with any…

A: In first subpart question-(c) we will just write missing reagents for complete the transformation.…

Q: A gaseous mixture of methane, ethane and propane has their percent volume of 38%, 42% and 20%…

A:

Q: Calculate the number of moles of acetic acid.  Assume that the density of the vinegar is 1.0 g/mL…

A: You have given the incomplete data. I have solved as per best of my knowledge. Also, the question in…

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction…

A: Here we are required to find the standard cell potential for the given reaction

Q: 1. Assign O.N.s to each atom in the following: (Write the O.N.s under each atom with the sign first)…

A: we need to write the oxidation states

Q: Given the thermodynamic information below for ethylene glycol (molar mass = 62.068 g/mol): Normal…

A:

Q: Encircle the chiral centers in the compound and assign them R,S configuration. CH3 1 HT 공 I ling…

A:

Q: Incubation with primary antibody should be accompanied with agitation, why?

A:

Q: How many millimeters of concentrated HCl are needed to prepare 500mL of 0.25N HCl? 10.4 mL 11.4 mL…

A:

Q: What is the function of DNA? * carrying the correct amino acid to the site of protein synthesis in…

A: There are two types of nucleic acid-  1- Deoxyribose nucleic acid 2- Ribose nucleic acid

Q: Which of the following best explains why a beam of light passing through a soap solution can be…

A:

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.