Gravimetric Analysis. Please include complete solution, thank you. In the gravimetric determination of sulfate in a 0.2841 g sample of pure Na2SO4, a BaSO4 precipitate weighing 0.4604 g was obtained. The weight of the precipitate was smaller than the theoretical one, since some BaSO4 was converted to BaS during the heating process. Calculate the percent of BaS in the precipitate and percent error of the analysis.

Q: Electrochemical cells can be used to measure ionic concentrations. A cell is set up with a pair of…

A:

Q: br Me A

A: In the given structure , there are two chiral center present in the given molecule . they give four…

Q: What is the IUPAC name for the following

A: In this question we have to tell the IUPAC name of the compound.

Q: When 22.0 mL of a 3.58× 104M ammonium chloride solution is combined with 25.0 mL of a 9.20x104 M…

A:

Q: t the geometries of PCI, using the VSSPR method with the following step: ) Draw the skeletal…

A: Predicting the geometry of molecule according to VSEPR theory.  The valence electrons in PCl5 = 5 +…

Q: Provide reaction mechanisms for the following transformations: cat. Thiamine-HCI CH3 Ph Ph Ph H3C `H…

A:

Q: Analyze the spectrum and include identification of the different fragments available based on peaks…

A: To analyze the given spectrum:

Q: 3. These equilibrium constant are measured in the reaction below at 300 K: [Cu) = 0.148 M, [Sn-l=…

A: From the given equation , condition of equilibrium is rate of forward = rate of backward

Q: A 0.800 M solution of NH3 is prepared and is in equilibrium with its ions. Is the assumption valid…

A: NH3 is a weak base that undergoes hydrolysis to form conjugate acid and OH-(aq). The equilibrium…

Q: Fill in the blanks: Determine whether each of the following compounds is optically active or…

A:

Q: OTs HO 2)

A:

Q: 12. a) Describe the bonding scheme of the AsH, molecule in terms of hybridization. sp3 b) What is…

A:

Q: The chemical environment of protons can be deduced from their chemical shifts. What are the relative…

A:

Q: Fluorine-18 is a radioactive isotope use in a variety of medical imaging procedures including…

A: Half-life of 18F isotope = 1.83 hours

Q: Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chloro-3-methylpentane.…

A:

Q: 4. An aqueous solution of a nonelectrolyte has a normal boiling point of 105.3 °C. What is the…

A: ★ Answer : Freezing point of this solution will be  - 19.25°C ★ Solution :

Q: What are the ole fractions of hydrochloric acid, HCl and water in a 20% aqueous HCl solution?

A: Given: (w/w)% of HCl solution = 20% Known: Molar mass of H2O = 18 g/mol Molar mass of HCl = 36.5…

Q: 100 mL of 2.0 M acetic acid with a Ka=1.8x10^-5 is diluted to 1L. If final acetate

A:

Q: HCN is a weak acid (?a=6.20×10−10) , so the salt, KCN , acts as a weak base. What is the pH of a…

A: First write down the reaction between KCN and H2O. Then find OH- or H3O+ and using that find pH of…

Q: H,CO OCH3 Compound ZEREF Compound MAVIS END Predict the structures of the starting material given…

A: Aromatic aldehyde give postive test with tollen's reagent and this give negative test with iodoform…

Q: If you had a protein X, which is a soluble enzyme found inside the peroxisome, and you wished to…

A: Proteins chain of amino acids which join together to form protein. Proteins are found in the…

Q: 5. At a given temperature the vapor pressures of benzene and toluene are 183 mm Hg and 59.2 mm Hg,…

A: Given  Vapour pressure  pbenzene = 183 mm Hg  ptoluene = 59.2 mm Hg  Mole fraction  Xbenzene = 0.620…

Q: Which of the monomers shown forms the addition polymer polyethylene ? H. H F Он H. CN H.

A: addition polymerization: The polymerization reaction which involves joining of unsaturated monomer…

Q: Calculate the heat absorbed when 68.8g of ice at -30 C is converted to steam at 160 C

A: The process has steps like  I. Heating of ice to 0oC II. Melting of ice at 0oC III. Heating of water…

Q: Draw the Condensed and Line Angle structural formula of the IUPAC name given. 3 - ethylheptane -…

A: The naming of an organic compound can be done with help of rules of international union of pure and…

Q: What is the final temperature of a piece of 0.0438 kg of aluminum after the addition of 1046 J of…

A:

Q: 17. The efficiency of Carnot engine working between high temperature source T, and low temperature…

A: Carnot engine is a thermodynamic cyclic and reversible process, which is design in such a way that…

Q: storage

A: The stability is mainly affected by storage time and also by other factors that increase the…

Q: 1) LDA NH 1) NaOH ww XX 2) 2)H H 2) OE 3) H,O

A: Detail mechanistic pathway is given below

Q: For the following reaction, AH° = - 92.5 k) I(9) + CsHio(g) : CHs(g) + 2HI(g) What effect does each…

A:

Q: 2. Use structures to explain the difference between a monounsaturated, polyunsaturated and saturated…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Br (a) -F LO (h) CI CI (c) d)

A:

Q: 4. Calculate (a) AG°, and (b) K, for the following equilibrium reaction at 25.0 °C. PCI,(g) =…

A: a.) ∆G° can be calculated using standard ∆G°f values of species involved in reaction.  b.) KP can be…

Q: Complete the following nuclear equation and identify X. Oxygen-20 ----> Fluorine-20 +X

A: Here given---- Mass number of oxygen is 20 and atomic number of oxygen is 8. Mass number of fluorine…

Q: Answ GA 20. Answ My C x C Write C The F C Whe x akeCovalentActivity.do?locator-assignment-take…

A:

Q: How do you find/work through the process of finding the structure of the following

A: C12H16O2    Degree of unsaturation = 5

Q: a. OH H2SO4 b. HBr

A: Detail mechanistic pathway is given below

Q: Suppose the O, gas evolved by a certain chemical reaction taking place at 50.0 Cis collected over…

A: Given: Temperature = 50oC Volume of gas collected in the collection tube = 118 mL To determine: Mass…

Q: 2. Casein has an excess of amino acids with acidic R-groups like glutamic acid. Complete reactions…

A: This  reactions  occurs due to basic and acidic functional group in protiens

Q: Designate the CIP priority order of the following C5H1- groups. (Lowest < Highest priority order) 1.…

A:

Q: Use the appropriate standard reduction potentials in the appendix of the textbook to determine the…

A:

Q: Why is it important to assign oxidation numbers to all the atoms in the equation?

A: Why is it important to assign oxidation numbers to all the atoms in the equation?

Q: Why aniline absorbs at 281 nm in the UV and anilinium ion absorbs at 254 nm?

A: Hypsochromic shift is the shift when a compounds absorption maximum changes to a short wavelength.

Q: Gravimetric analysis. Please show complete solution. Thank you. Question:  In the analysis of…

A: Given,  The mass of impure chloride sample = 0.7011 g.  The mass of AgCl precipitate = 0.9805 g.…

Q: Which of the following structures represents a chiral compound? ÇH, CH, CH, CH, CH, OH ÇH, CH, CH CH…

A: Answer: Any compound that contains chiral center is called as chiral compound.

Q: BH3•THF HO.

A: Detail mechanistic pathway is given below

Q: 1. HCN is a weak acid (Ka=6.20×10-10) , so the salt, KCN , acts as a weak base. What is the pH of a…

A: Note: As per the guidelines, solution of first question has been. For the expert solution of second…

Q: 4. 600 g of C3H7OH dissolved in 600 g of H2O

A:

Q: Fill in the blanks: The following questions apply to the five compounds shown below. Et means…

A: Isomer are compound which have same molecular formula but different structural formula

Q: 3. A 400.0 mL sample of an aqueous solution at 25 °C contains 23.8 mg of an unknown nonelectrolyte…

A: