A 22.0 g block of copper at 45'C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 Ng-C what will be the final temperature of the Cu?

Q: In a certain experiment, 40.0g KClO3 is heated until it completely decomposes. What is the theoretic...

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Q: In the typical illustrations of orbitals, the boundary surface Select one: a. encloses a volume of s...

A: We would define orbital and boundary surface . 

Q: How much heat is required to raise the temperature of 15 x 10g of water from 45F to 130F? The specif...

A: Answer: This question is based on the following formula: Q=mS∆There:Q=heat exchangedm=mass of the wa...

Q: Give the IUPAC name for the compound below: O 4-butyl-1,5-dichlorobenzene O 2,4-dichloro-1-butyl-ben...

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Q: Be sure to answer all parts. Calculate the molecular mass or formula mass (in amu) of each of the fo...

A: Concept :amu  1) 1/12th mass of one carbon atom is termed as amu.  2) it is the unit of mass used ge...

Q: Which of the following is a possible set of quantum numbers for an electron in an oxygen atom in its...

A: Oxygen atom is having the atomic number = 8 Hence it contain 8 electrons.  So, Ground state electron...

Q: In terms of polarity, which of the following does NOT belong with the rest? Select one: O a. CIF3 O ...

A: Which of the following different from others--

Q: Electron group Molecular Polarity (or ion) Formula Lewis structure ΑΧΕ Bond Notation geometry geomet...

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Q: How many grams of potassium permanganate are required to prepare 432 mL of 0.540 M solution

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Q: molar mass

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Q: build the secular det erminant bor cyclobutadiene and cofficents and levels

A: Using Huckel molecular orbital to determine secular determinant and energy levels diagram.

Q: The rate constant for the first order decomposition of SO2Cl2 is 1.37 ´10-3 min-1 at a certain tempe...

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Q: (c) How can the following compounds be distinguished. by 'H-NMR? . Provide chemical shift, splitting...

A: This question is based upon NMR Spectroscopy. The splitting pattern depends upon the different types...

Q: An unknown pure solid was found to have a melting point (MP) of 1063 °C. Which of the following subs...

A: Given that, Melting point = 1063 ℃  then, Identify the unknown ?

Q: The line emission spectrum of cerium is most intense at 419 nm. Given this information, which of the...

A: Wavelength of gamma rays is small in comparison to visible region. 

Q: Which of the following statements is/are correct at 25 °C? 1. Benzoate (C,H;O2) requires a Ka to det...

A: To determine pH we need Ka or Kb value. Which among Ka or Kb is used depends on the nature of specie...

Q: Br2 hv Br II Br II IV Br Br racemic |

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Q: • Part A How long will it take for a 0240-mol sample of radium to decay to 3.00 x 10 AE ? 91.2 days ...

A: Half life of Radium-223 = 11.4 days No = 0.240 mol N = 3 x 10-2 mol  

Q: Classify these compounds as soluble or insoluble. Drag the appropriate items to their respective bin...

A: Solubility depends upon the solubility product. 

Q: Which of the following is (are) meso? Br Br HN H Br Br Br H Br Br I II II IV O I O IV O Two of these...

A: ->Meso compounds are compound that have either center of symmetry (or) plane of symmetry (or) bot...

Q: The disintegration energy of the decay30 P15 by position emission is 4.30 Mev.  The daughter nuclide...

A: Given,  disintegration energy = 4.30 Mev  mass of Si = 29.97396 u  Mass of positron, 0e+1 = 0.000548...

Q: Determine if the following salts are acidic, basic, or neutral: 1. Hydrazinium bromide (H2NNH Br) is...

A: Concept:  Salf are also basic acidic and neutral in nature. The nature of any salt can be predicted ...

Q: Calculate the mass in grams of 0.45 moles of Be(ClO3)2.

A: Detail mathematical calculation is shown below

Q: H2SO4

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Q: 3. Provide the products, intermediates, and/or reagents for the following reactions: (a) CH3 (1) H2N...

A: 1. Reaction between acid chloride and amine compound gives amide as a product. 2. In wittig reaction...

Q: Give an example of an oxyacid (containing a polyatomic ion) in aqueous solution and it’s formula

A: Oxyacids are the oxygen containing acids.  Polyatomic ion means ion having a group of atoms.

Q: In which molecule is the oxygen-to-oxygen bond the SHORTEST? Select one: • a. H,02 O b. 02 Oc. 0, O ...

A: Higher the bond order, lower the bond length

Q: What is the true density of Zr, an HCP crystal, in g/cm3? Where: Atomic Number = 40  Atomic Weight...

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Q: Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. Calculate t...

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of th...

Q: What types of elements undergo covalent bonding? a. a nonmetal and a metal b. two Group 1 elements c...

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Q: Select the method(s) that will give the following alkene as a MAJOR product. Ph;P* •CH2 1. PPH3 2. H...

A: The conversion of carbonyl compounds into alkene by the reaction with the triphenylphosphonium ylide...

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A: The sign convention for heat flow are as follows: When the heat flows into the system, a positive si...

Q: 1. List the four variables or factors that can affect the rate of reaction.

A: Solving only first question in accordance with the guidelines. We will discuss factors affecting rat...

Q: Explain Epimers

A: Those carbohydrates which contain many asymmetric(chiral) centers but differs in stereochemistry at ...

Q: Vapour pressure is defined as the partial pressure of a gas in equilibrium with liquid. What is the ...

A: 1)  We would use Clausius Clapeyron equation to calculate the vapour pressure at 15°C .     Note : A...

Q: 3. The Seliwanoff Test tests for ketoses by forming hydroxymethyl furfural (shown below) when heated...

A: The hydroxy groups at position- 2,3 and 4 are involved in dehydration reaction necessary to convert ...

Q: Click in the answer box to activate the palette. Balance the equation representing the reacetion bet...

A: Balancing a chemical equations:

Q: Gaseous butane (CH3(CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (...

A: Given data is as follows: The mass of butane = 46 g The mass of oxygen =48.3 g The maximum mass of c...

Q: Indicate the activation energy for the overall reaction on the graph. (You may want to use a line fo...

A:  “Since you have posted a question with multiple sub-parts, we will solve first three subparts for y...

Q: Write the precipitation reaction for nickel(II) nitrate in aqueous solution: Be sure to specify the ...

A: Precipitation reactions can be defined as the reactions that involve formation of an insoluble solid...

Q: we Can treat methane (CH4) as an ideal gas at temperatures above its boiling point of -161. °C. Supp...

A: T1 = -24.0°C = -24.0 + 273 = 249K T2 = 18.0°C = 18.0 + 273 = 291K  P1= 6.2 atm Volume increased = 35...

Q: How large volume should be measured from a 37wt, 1.185 g/cm^3 density solution?

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Q: The overlap of atomic orbitals shown here will give rise to a molecular orbital with what type of ch...

A: Concept : Atomic Structure  1) positive part of wave function + positive part of wave function leads...

Q: 37. (4 points). The following compound was obtained from cells, after supplying them with "C-labeled...

A: Pyruvate is a three-carbon compound that enters the TCA cycle through the pyruvate dehydrogenase rea...

Q: What is the theoretical yleld of chromilum that can be produced by the reaction of 40.0 g of Cry03 w...

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Q: Carbon disulfide, which is liquid at room temperature and is used extensively as a solvent, can be p...

A: Given Reaction:-  2S(g) + C(s) ⇌ CS2(g)  Kc = 9.40 M–1

Q: Sulfur trioxide gas combines with water to form a single product. SO3 + H2O → ? Based on the law o...

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Q: Cis-methyl crotonate isomerizes to allyl acetone. The rate constant for the cis-trans reaction was f...

A: Given:- Cis-methyl crotonate isomerizes to allyl acetone. The rate constant for the cis-trans reacti...

Q: ogen, like this: 2 Fe(s)+3 H,O(g)→Fe,O3(s)+3 H,(9) At a certain temperature, a chemist finds that a ...

A: Kc is the ratio of  product of concentration of products raised to their stoichiometric coefficient ...

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of S02 are...

A: