P5B2 In a study of the properties of an aqueous solution of Th(NO3) by A. Apelblat, D. Azoulay, and A. Sahar (J. Chem. Soc. Faraday Trans., I, 1618, (1973)), a freezing-point depression of 0.0703 K was observed for an aqueous solution of molality 9.6 mmol kg ¹. What is the apparent number of ions per formula unit? 50 10.0 10.0 22.0 24.0 acid with PS te
Q: A 251 mL sample of Ar gas was collected at 1175 mmHg. What would be the pressure in mmHg if the gas…
A: At constant temperature volume of gas is inversely proportional to pressure
Q: What is the concentration of K+ in 0.15 M of K₂ S? Express your answer to one decimal place and…
A: Question 1 --> Answer 0.3 M Value Units
Q: 1. What volume of 5.00 M of KOH will neutralize 30.0 mL of 1.00M HNO3?
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell…
A: Given , Reaction : 3Cu2+(aq) +2Cr(s) →3Cu(s) +2Cr3+(aq)
Q: I I I 1 1. BH3-THF 2. H₂O2, NaOH +
A:
Q: Which answer represents the correct balancing coefficients (in order from left to right) & the type…
A: Given reaction ___ Ca(OH)2 + ___ Al2(SO4)3 --> ___ Al(OH)3 + ___ CaSO4 In the given reaction…
Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…
A: In the given question we have to do the arrow pushing mechanism of chlorination of alkene,
Q: Using data from the appendix, calculate AS each is spontaneous at 25°C. (a) 2 KCIO4(s)→2 KCIO3(s) +…
A: a) From the question, 2KClO4s→ 2KClO3s + O2g For this reaction, the change in entropy for the…
Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic…
A: •Polar molecules : i) have polar bond. ii) have asymmetric structure. •Non - polar molecules :…
Q: Modify adenosine triphosphate (ATP) to give the remaining product of ATP hydrolysis.
A:
Q: Select the pair of substances which has the one with the higher equilibrium vapor pressure at a…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: CH3 CH₂ Br Na* OCH 3 CH3 CH₂
A: -> In E2 mechanism base can abstract anti periplanar beta hydrogen and form alkene as product.…
Q: Why does HF have the lowest melting point compare to CH4, MgCl2, and c(s, diamond./
A: The hydrogen fluoride have lowest melting point among all because the bond between hydrogen and…
Q: For the following processes, calculate the change in internal energy of the system and determine…
A: According to the question, The gas is in an insulated cylinder which means that no heat is gained…
Q: 5. A total synthesis of the marine natural product involved an intramolecular SN2- type process of…
A: SN2 reaction involves inversion in configuration because the nucleophile attacks from the back side…
Q: Answer the questions below about the highlighted atom in this Lewis structure: H H + H-C- C=C-H │ |…
A: A sigma bond is a covalent bond created when two atomic orbitals axially overlap. The methane…
Q: 16.44 Pepsin, a peptidase that hydrolyzes proteins, functions in the stomach at an optimum pH of 1.5…
A: For the first time, asymmetric cross-aldol reactions of aromatic and polycyclic aromatic aldehydes…
Q: How many grams of chlorine are in 190 milliliters of a 1.526 M MgCl2 solution? Hint: the solubility…
A: According to the question, The molar concentration (molarity) of the MgCl2 solution is given by =…
Q: The half-lives of different medical radioisotopes are given in the table. If the initial amount of…
A: In radioactive decay unstable nuclei decays into stable nuclei with emissions of some rays in the…
Q: What is the IUPAC name of this molecule? A/
A: Answer:- This question is answered by using the simple concept of naming the organic compound using…
Q: A chemist must dilute 0.09 L of 2.98 M aqueous sodium nitrate (NaNO3) solution until the…
A: Initial volume = 0.09 L Initial Molarity = 2.98 M Final Molarity = 2.00 M Final volume = ?
Q: certain temperature, the equilibrium constant for the chemical reaction she centration of AB is…
A:
Q: reaction. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic…
A: -> When Br2 reacts with alkene first of all cyclobromonium ion formed then Br- can open the ring…
Q: 6. a) Draw the structure of the final product for the reaction mechanism between a Grignard reagent…
A: Grignard reagent attack on carbonyl group to give alcohol upon work up.
Q: COA How many molecules of each of the cofactors are produced when these two acetyl-SCOA molecules…
A: For one acetyl coenzyme molecule passing through citric acid cycle produces a) 3 molecules of NADH:…
Q: What is the pH of a 0.480 M solution of HNO3?
A:
Q: we want to expand a gas to double its original volume the thout changing the pressure, we will need…
A: At constant pressure volume of gas is directly proportional to its temperature
Q: A medical technician is working with the four samples of radionuclides listed in the table below.…
A:
Q: ) Draw the product and mechanism for the following sequence of reactions. Product of first reaction…
A:
Q: The first reaction is of a strong oxidizer (HNO3) with a metal (Cu) to produce copper nitrate,…
A: The reactions between copper and nitric acid are examples of oxidation-reduction reactions, where…
Q: A large balloon has an original volume of 1.0 m3 when it is released from the ground. When the…
A:
Q: takeAssignment/takeCovalent Activity.do?locator-assignment-take [Review Topics] [References] Use the…
A: Because osmolarity= molarity× n And molarity× molecular weight/100 = w/v And% w/ v= w/ v× 100
Q: To what pH should a solution that is 0.072 M each in Ca²+ and Cd²+ ions be adjusted in order to best…
A: Solubility product:- Solubility product is defined as the product of concentration (in g/l) of the…
Q: Take all the thermodynamic data from your textbook. Assume the data do not vary with temperature.…
A:
Q: Write the formula for the conjugate base of HSO. formula for the conjugate base of HSO: HSO + H+…
A: The given problem is based on the concept of conjugate acid-base pair.
Q: :) Considering the equation for Combustion C7H16 + 110₂ →7002₂ +8H₂O If the reaction produced 17,5g…
A: The given reaction is: C7H16 + 11 O2 ==> 7 CO2 + 8 H2O Given Mass of carbon dioxide = 17.5 g…
Q: SiO₂ (s) + 2 C(s) → SIC(s) + CO(g) If 100.0 kg of sand reacts with 100.0 kg of C, and 55.0 kg of SiC…
A:
Q: Carbon monoxide gas is collected at -11.0 °C in an evacuated flask with a measured volume of 25.0 L.…
A:
Q: You dissolve a 0.553 g sample of an unknown monoprotic weak acid in water to a total volume of 20.0…
A: At equivalence point models of acid are equal to moles of base . So first we would calculate models…
Q: Draw the Lewis structure for SO₂ (with minimized formal charges) and then choose the appropriate…
A: Given -> SO2
Q: The decomposition by the equation of PCBs can be representen 2 C₁₂ Hy Clb + 23 0₂ + 2H₂O → 24 CO₂ +…
A: This question is based on the stoichiometry of the reaction. The amount of reactant reacted and…
Q: Use the Born-Haber cycle and the data shown to calculate the lattice energy of SrO. Express your…
A: This question is based on calculation of lattice energy by using Born -Haber cycle. In this question…
Q: At pH 7.0, the net charge on the peptide -Ala-Gly-Glu-Pro- would be, a. -2 b. -1 c. 0 d. +1 e. +2.…
A: we have to determine the net charge on the given peptide
Q: Which of the following is the product of the reaction scheme shown below? a. C 1) NaOMe 2) C6H₂CH₂Br…
A: The given reaction is an example of acetoacetic ester synthesis. The first step of the reaction is…
Q: Indicar los productos (y su estereoquímica) y el tipo de mecanismo (razonado). H CH3 HR Br H3C KOH…
A:
Q: can you answer question 2
A: In this , we would determine the oxidizing strength from the given two observations. Then combine…
Q: What is the 1 letter abbreviation for the tripeptide
A: Given tripeptide - serylglycylalanine
Q: you are careful about what is being measured. A. B. C. Match the spectrum to the compound. All types…
A: The structure of a compound can be determined by number of signals and chemical shift present in…
Q: At a unspecified temperature we place 0.940 mol of pure SO3 is placed in a evacuated 1.00-L…
A:
Q: Draw the product of the reaction shown below. Use wedge and dash bonds to indicate relative…
A: Here we are required to predict the product of the reaction when the given alkene undergo…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- P5B.1 Potassium fluoride is very soluble in glacial acetic acid (ethanoic acid) and the solutions have a number of unusual properties. In an attempt to understand them, freezing-point depression data were obtained by taking a solution of known molality and then diluting it several times (J. Emsley, J. Chem. Soc. A, 2702 (1971)). The following data were obtained: b/(mol kg") 0.015 0.037 0.077 0.295 0.602 ΔΤΙΚ 0.115 0.295 0.470 1.381 2.67 Calculate the apparent molar mass of the solute and suggest an interpretation. Use AfH= 11.4kJ mol™ and T;* = 290 K for glacial acetic acid. lusThe mean activity coefficients of HBr in three dilute aqueous solutions at 25° C are 0.930 (at 5.0 mmol kg-1), 0.907 (at 10.0 mmol kg-1), and 0.879 (at 20.0 mmol kg-1). Estimate the value of B in the extended Debye-Hückel law, with C = 0.Referring to Fig. 5.8, deduce the molar solubility of (i) NH4Cl, (ii) (NH4)2SO4 in water at 25 °C.
- The vapour pressure of water in a saturated solution of calcium nitrate at 20 °C is 1.381 kPa. The vapour pressure of pure water at that temperature is 2.3393 kPa. What is the activity of water in this solution?Explain the origin of osmosis in terms of the thermodynamic and molecular properties of a mixture.(b) CMC of a surfactant in water at 25 °C is 0.5 g L-¹ and at 45 °C is 0.3 g L-1. The molar mass of the surfactant is 110 g mol-¹. (i) Calculate: The Gibbs energy of micellisation, AGO, of the surfactant at 25 °C and 45 °C, The fractions (%) of the surfactant molecules in free and in micellar states in 0.5 g L-¹ aqueous solution of the surfactant and temperature 45 °C. ● ● (ii) Calculate CMC for the surfactant in water at 55 °C.
- The rise in atmospheric carbon dioxide results in higher concentrations of dissolved carbon dioxide in natural waters. Use Henry's law and the data as given to calculate the solubility of CO2 in water at 25 °c when its partial pressure is (a) 3.8 kPa. (b) 50.0 kPa.b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction СO(g) +2H2(g) — CHОН (g) At 298.15 K, AH.co (0)= -26.41 kcal/mol, AH AG.co (9)= -32.8079 kcal/mol, AG cH,oh(9)= -38.69 kcal/mol, °.CH20H(9)= -48.08 kcal/mol, The standard heat capacity of various components is given by, CO = a + bT + cT² + dT³, where C, is in cal/mol-K and T is in K b x10² с х105 d x10° Соmponent CH3OH а 4.55 2.186 -0.291 -1.92 CO 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079Describe the general features of the Debye-Huckel theory of electrolyte solutions. Which approximations limit its reliability to very low concentrations?
- The solubility of alum in 25 mL 1.4 M KOH plus 10 mL 9 M H2SO4 (our solution) is approximately 1.0 g at 1.0 °C, and 1.7 g at 6.0 °C. Estimate the amount of alum left in the solution if the temperature of the solution at the time of filtration was 5.0oCThe standard molar entropies of water ice, liquid, and vapour at 298 K are 37.99, 69.91, and 188.83 J K-1 mol-1, respectively. On a single graph, show how the Gibbs energies of each of these phases vary with temperature; assume that the entropies themselves vary negligibly with temperature.Calculate the molar solubility of methane at 1.0 bar in benzene at 25 °C.