A sample of solid copper is heated with an electrical coil. If 69.5 Joules of energy are added to a 10.5 gram sample initially at 22.8°C, what is the final temperature of the copper? Answer: Toc.

Q: Assuming you have 120 g of CH3OH and 84 g of O2 how many grams of CO2 would you produce?

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: A phase diagram for CO, is shown below. At room temperature and very high pressure (>1500 atm), CO,…

A: (A) SOLID .

Q: When a monosaccharide is oxidized by an oxidizing agent such as Benedict's reagent, a sugar acid is…

A:

Q: Results, and calculations: Complete the table below, using Fe as the metal Wt. of Calorimeter Wt. of…

A: Given:

Q: If the m. Wt. of BaSO4 = 233.42 g/mol and m. Wt. of Na(SO4)2= 140.02 g/mol and %3D wt of…

A: Given that M.W of BaSO4 = 233.42 g/mole  M.W of Na2SO4 = 140.02 g/mole  Weight of Na2SO4 = 1.5 g

Q: HO 12. CH,OH HQ

A: Reaction 1 : Cyclohexane reaction with Br2 and hv. 2. Dehydrobromination. 3. Allylic bromination. 4.…

Q: At a pH of 7.40, what is the ratio of the molar concentrations of HC03 to H2CO3? Express your answer…

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Q: The value of Ksp for AgBr is 5.4 × 1013. For the Ag/AgBr electrode, AgBr(s) + e Ag(s) + Br (ag)…

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Q: The ester group can be written as -COO- in condensed structural formulas. Provide the condensed…

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Q: Consider the electrolysis of zinc(II) bromide. Determine the product at the cathode and the product…

A: * Electrolysis is process  of deposition of metal by     passing electrolysis . * cathode is…

Q: Iron(III) oxide and hydrogen react to form iron and water, like this: Fe,O,(s)+3H,(0)-2Fe(s)+3H,0(9)…

A:

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: The decomposition of mercury(II) oxide (HgO) produces liquid mercury and gaseous dioxygen.

Q: e newman projection. (2) Rotate the carbon #1 to 60 degree for 6 s until a 360 degree rotation was…

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Q: What will be the carboxylate ion produced when 3-methylhexanoic acid dissociates in water? + H2O 2 ?…

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Q: Calculate the ∆H of the following reaction. Show the complete and step by step solution. 1. LiOH(s)…

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Q: 19. Refer to the molecule below. (1) Draw the newman projection for carbon #1 and #2. Let the carbon…

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Q: Chapter 17 Matching Questions1-5 Match the following. Drag the appropriate labels to their…

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Q: For many purposes we can treat methane (CH) as an ideal gas at temperatures above its boiling point…

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Q: Determine el nombre IUPAC para los siguientes compuestos: Br HO NH2 CH3 CI Br OH

A: The IUPAC name of the following compounds are:

Q: he enthalpy of vaporization for the liquid in kJ/mol?

A:

Q: A. Show the steps of the mechanism socla OH (s) CA)

A: This is Darzen'S reaction ,the mechanism are given below

Q: Question 12 Which of the following has the lowest rate of reaction? O H2SO 4(aq) + BaSO 4(aq) 2H200…

A:

Q: Fez++ Mn Oq- Fe3tA My2t >Fe3t + Mn2t OXO

A: Step by step solution are below

Q: Consider a buffer solution that is 0.50 M in NH and 0.20 M in NH4Cl. For ammonia, pKp = 4.75.…

A:

Q: Write the IUPAC name for the given molecule

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: A 65.0-mL sample of 0.00200 M AgNO3 is added to 65.0 mL of 0.0100 M NAIO3. What is the equilibrium…

A: AgIO3 is a sparingly soluble salt , when it is dissolved in water equilibrium is formed  AgIO3…

Q: Suppose a 250. ml. flask is filled with 1.7 mol of H, and 1.2 mol of NH,. This reaction becomes…

A: Chemical equilibrium is defined as the speed at which rate of reaction occurs.

Q: Use tabulated values to determine the Kw (autoionization of water) at 310 K.

A: Ionization of water requires energy , so it is an Endothermic process. Thua value of Kw changes with…

Q: A chemist prepares a solution of sodium nitrate (NaNO,) by measuring out 120. g of sodium nitrate…

A: Given :- mass of NaNO3 = 120.g  Volume of solution = 450.mL  Tp calculate :- concentration of…

Q: 1. Write the balanced molecular equation for the reaction of the CuSO4 with ammonia to form…

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Q: If the readings are 2 3 4 the average deviation is--- O 5.33 3.34 2.44 O 0.66

A:

Q: What is the activity coefficient of H* in a solution containing 0.025 M HCl and 0.025 M Ca(CIO,),?…

A: The answers will be - - > Y = 0.8302 and pH = 1.683

Q: Pentalene is a most elusive molecule and 12- has never been isolated. The pentalene dianion,…

A: Why pentalene dianion is quite stable and pentalene is not stable??

Q: easurements show that the energy of a mixture of gaseous reactants increases by 178. kJ during a…

A: We have to predict the change in enthalpy and nature of reaction.

Q: A student mixes together a solution Lead (II) Nitrate with a solution of Sodium Iodide, according to…

A: Concept:  Entropy change for a reaction: If in any reaction number of components decrease then sign…

Q: How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0…

A:

Q: CHEMWORK Assuming that the solubility of PbCl,(s) is 1.6x10-2 mol/L at 25°C, calculate the Ken for…

A: The dissociation of PbCl2 is  PbCl2 =Pb2+ + 2Cl- That is Ksp=[Pb2+][Cl-]2 Given solubility is PbCl2…

Q: Which of the following would best describe the nature of the major product of the following…

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Q: 3. What monomer(s) are needed to synthesize each polymer? a. d. honga Stre b. е. F CIF CIF CI С.…

A: A polymer can be a natural or synthetic compound which is comprised of many small molecules. A…

Q: Label the acid, base, conjugate acid, and conjugate base in these acid-base equilibria: a. H;CN + HF…

A: Concept:  Conjugate Acid and conjugate base: An acid and a base which differ only by the presence or…

Q: 3.The following reaction occurs spontaneously.             Cu2+(aq)  +  Zn(s)  -->  Cu(s)  +…

A: Oxidation is the increase in the oxidation number.  Reduction is the decrease in oxidation number.

Q: For many purposes we can treat ammonia (NH,) as an ideal gas at temperatures above its boiling point…

A: Given-> T1= -19.0°C = -19.0 + 273 = 254 K T2= 21.0°C = 21.0 + 273 = 294 K P1= 0.29 kpa  Volume in…

Q: Determine the oxidation state of the transition metal in each of these coordination compounds.…

A:

Q: What is the typical molecular structures of an epoxy resin and curing agent?

A: In the given problem we have discuss about the typical structure of Epoxy resins and also its curing…

Q: find the delta h gor the following reaction lF5(g) ---> lF3(g) + F2(g) giveb the data below IF(g) +…

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Q: A sample of an unknown compound is vaporized at 150. °C. The gas produced has a volume of 980. mL at…

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Q: A 10.0 L tank at 25.1 °C is filled with 6.70 g of dinitrogen monoxide gas and 10.9 g of sulfur…

A: Given :-  Mass of N2O = 6.70 g  Mass of SF4 = 10.9 g  Volume = 10.0 L  Temperature = 25.1°C  To…

Q: How many total ernission lines are there in the Balmner series? include att tines: visible and…

A: The total emission lines in Blamer series is given below

Q: Problem 2. Draw the resonance structures by hybrid orbitals. NH2 H,N ENH2

A: The resonance structures are the structure which generates by the movement of charge or lone pairs…

Q: A voltaic cell is constructed from a standard Fe?+ Fe half cell (E° red %3D -0.440V) and a standard…

A: