Calculate the final temperature when 20.0 grams of water at 85ºC is added to 35.0 grams of water at 10.0ºC in an insulated container.

Q: Which of the following statements is true regarding the iron-phenanthroline method?

A: Iron- phenanthroline method is a colorimetric method for quantitative analysis of Fe2+. Fe2+, when…

Q: Analyze the NMR spectrum below and identify the com

A: Proton and carbon NMR spectroscopy is used to identify the unknown compound. Proton NMR is used to…

Q: A vessel containing 1.000 kg of water at 25.00 °C is heated until it boils. How much heat is…

A: Given: Amount of water = 1.000 kg Initial temperature of water = 25.00 oC Boiling point of water =…

Q: Which of the following paired statements are correct? A Prism --- serves as the source of radiation…

A: Prism will separate light into its component wavelengths. Light source serves as source of…

Q: vi) d-orbital can have maximum of............. electrons. ✔ a. 2 b. 6 c. 10 d. 18 alement?

A: Maximum number of electrons held in the d orbitals is 10.There are 5 sub-levels in a d orbital, each…

Q: Which compound would be the STRONGEST acid? Select one: O a. CH3CHCICHCICO₂H O b. CICH₂CHCICH₂CO₂H O…

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Q: ) Predict the products of the following reactions: CH OCH CHCH (a) ног CH3 CF CO H (c) H3C CH3 ? (b)…

A: Given reactions are :  Predict the products of the reactions = ?

Q: Which of the following electrodes will not exhibit a Nernstian response based on the slope of the…

A: The Nernst equation is represented as: Ecell=E°cell-59.2 mVnlogPR where, Ecell is the cell…

Q: Instruction: Write the following organic compound in CONDENSED FORM (SHOW ALL THE NUMBERS OF ATOMS…

A: The correct answer is given below

Q: 23. Baeyer Villager reactions are among the most useful of all rearrangement reaction. Ubserve the…

A: Baeyer villager reaction is used to convert ketone to ester.

Q: [Standardization] A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCI,…

A:

Q: A scientist was studying the electric field effect on bacterial growth when he unknowingly carried…

A: #1:  In the given reactions, Pt(s) undergoes oxidation to cis-[PtCl2(NH3)2](aq) and H2O undergoes…

Q: Through ________, developing countries make the largest contribution to the global concentrations of…

A:

Q: Instruction: Write the following organic compound in CONDENSED FORM (SHOW ALL THE NUMBERS OF ATOMS…

A:

Q: Which of the following has the MOST acidic hydrogen? Select one: a. 3-hexanone b. 2,4-hexanedione c.…

A:

Q: Metal Specific Heat (J/goC) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In joules,…

A: Given, mass of Ag (m) = 47.0 g Initial temperature (Ti) = 199°C Final temperature (Tf) = 123°C…

Q: Solve for the average molarity of sodium thiosulfate titrant if 0.1532 g, 0.1573 g, 0.1551 g KIO3…

A: From doing the calculation for Molarity , Molarity= 0.1250 M Option D is a correct answer.

Q: The cryoscopic constant is dependent on the following factors: I. IMFA present in the solutes II.…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: What is the total vapor pressure of a solution containing 35.8 g benzene (C6H6, molar mass = 78.11…

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Q: Calculate the OH— millimolar concentration in an “alkaline water” which the manufacturer claims to…

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Q: Astudent did the colligative properties experiment by adding 4.98 g of MgCl2 salt in 350 g of water.…

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Q: After 103 days, only 2.3 g of a radioisotope remains from a sample that originally has 150 g of it.…

A:

Q: 19) A sample of an organic solvent has a mass of 2.59 kg and fills a volume of 1.75 L. Use the table…

A:

Q: Metal ions chelate polar groups of analyte molecules for longer retention time. Does this affect…

A: HPLC is based on the principle where the sample (analyte) is distributed between a mobile phase…

Q: Which of the following matches is/are incorrec regarding the paper chromatography experiment? A.…

A: In paper chromatography  The mobile phase is generally the solvent also called as chromatography…

Q: Draw the organic compound based on the following and answer the questions that follows. a. what…

A:

Q: A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCl, evaporated to incipient…

A:

Q: Determine the mass of nickel that shall be electroplated from a solution of nickel (II) chloride by…

A: Given  Current (i) = 0.25 amperes Time (t) = 10 hours  = (10×60×60) seconds  t = 36000 seconds  Mass…

Q: The standardization of same titrant during the determination of BOD5 of water sample was done…

A: The BOD5 test, also known as the Biochemical Oxygen Demand test, is a biochemical test that measures…

Q: Standard reduction potential for the reduction of permagnaate in acidic solution is +1.51 V. what is…

A: Eocell = 1.51 V pH = 5.00

Q: Determination of water hardness using complexometric titration.   During sample analysis (ppm…

A: Given: Determination of water hardness using complexometric titration. To determine  EX…

Q: A water sample was analyzed for iron content using the iron-phenanthroline method. Using the set of…

A:

Q: The isotopic mass of 3315P1533P is 32.971726 amu. Determine its binding energy (in MeV) per nucleon.…

A:

Q: Calculate the cell potential of the electrolytic cell according to the reaction shown below: Br₂…

A: Reduction is gain of electrons that occur at cathode and oxidation is loss of electrons that occur…

Q: [Standardization] A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCI,…

A:

Q: What is Combined Gas Law? Explain how Combined Gas Law is applied to weather balloons.

A: The question will be answered in two parts in detail. We will first describe the combined gas law,…

Q: 17) The solubility of sodium chloride is 36 grams per 100 grams of water. Which of the following…

A: We will calculate the highest solubility in every given solution. If maximum possible amount of…

Q: A student accidentally started the chromatographic run without saturating the beaker with the…

A: Saturation of beaker with a solvent is necessary as if it is not done it will lead to the…

Q: Does the 0.100 came from the conversion of 100 mL? Or is it from the given 0.100 M buffer?

A:

Q: 3- Negative enthalpy means Oa- The reaction absorbs heat. b- The reaction doesn't absorb or evolve…

A: Given, Negative enthalpy means  a) The reaction absorbs heat. b)The reaction doesn't absorb or…

Q: Properties of a system could be measurable or non-measurable.

A:

Q: In what way can hydrogen bonding occur between molecules of formaldehyde (CH2O)? Select one:

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Q: b) Based on the answer in a), categorize CsCl to be either an ionic or covalent compound.

A: The correct answer is given below

Q: CH3 CH3CHCH₂CH₂CO₂CH3 CO₂H "Br OH 1. DIBAH 2. H₂O+ SOCI₂ CH₂CO₂COCH₂ Pyridine

A: Detail mechanistic pathway is given below to find out the product

Q: 7. The formation constants for lead(II) oxalate are logKn=4.2; logKn=2.11. The Acid dissociation…

A:

Q: 61-65. A 500-gram cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat…

A: Given: Mass of lead = 500 g Initial temperature = 25oC Final temperature = 75oC Specific heat of…

Q: 100 80 60 40 20 % of base peak 40 59 83 80 101 142 h 120 160 m/e Mass Spectrum M+ 160 (<1%) C7H1204…

A: Mass spectrum is the technique used in analytical chemistry for the separation of ions based on the…