If a 305.4 gram mass of copper that is initially at 24 degrees C is given 1,234 Joules of energy, what will it's final temperature be?

Q: Br

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Q: A river was reported to have a Hg content of 178 ppm. What is the concentration in molarity?

A: The mass of solute in mg present in a one-liter solution is known as ppm (parts per million) concent...

Q: Dichlorodifluoromethane (CF2C12) is a CFC (chlorofluorocarbon) molecule that used to be used as a re...

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Q: H+H-He+ 3

A: For nuclear reaction , total mass no. and total proton no. remain constant . Detail description is g...

Q: Practice Exercises 6.3 The oxidation of ammonia into nitric oxide is an exothermic process. AH = -90...

A: Concentration of a solution can be measured in terms of molarity, molality and normality. 

Q: With the Aid of relevant equation describe four methods that can be used to prepare carbonyl compoun...

A: Carbonyl compound are compound which have C=O  functional group  They are nothing but aldehyde and k...

Q: For the gas phase decomposition of hydrogen peroxide at 400 °C 2 H202 2 H20 + 02 the average rate of...

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Q: A silver nitrate solution contains 8.64 g of primary standard AgNO, (MM = 169.87 g/mol) in 1.00 L. W...

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Q: How many unpaired electrons does an excited atom of carbon have? 5 How many unpaired electrons does ...

A: Answer: These questions are based on the general understanding of electronic configuration of carbon...

Q: 2. One method for the destruction of ozone in the upper atmosphere is: 0,+ NO → NO, + 0, (slow) NO, ...

A: Solution: Given O3 + NO ---> NO2 + O2   (slow)      -----(1)         NO2 + O ----> NO + O2 (fa...

Q: 10. 15.81mL of 0.0593 M NaOH was required to react in the titration with benzoic acid extracted from...

A: Answer: Reaction between benzoic acid and NaOH is shown below: C6H5COOH(aq)+NaOH(aq)→C6H5COONa(aq)+H...

Q: For the decomposition of nitramide in aqueous solution at 25 °C NH2NO2(aq)–N20(g) + H20(1) the follo...

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Q: what is the purpose of preparing of a standard sodium hydroxide solution in determination of purity ...

A: We prepare a standard sodium hydroxide solution in determination of purity on impure KHP. Because we...

Q: normality of NaOH.

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Q: Give the extended, condensed, and bond line structural formula, and the type of aliphatic hydrocarbo...

A: -> 2-ethyl-1,1,4,4-tetramethylcyclohexane ->trans-5-ethyl-2-heptene ->2,4-difluoro-5-methyl...

Q: 8. Show how you would distinguish among the following three compounds H. OCH3 HO, H3CO W H3CO X Y (a...

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Q: Na‎me the follow‎ing com‎pound, and deter‎mine  coo‎rdination numb‎er of met‎al io‎n,  [Al(O‎H)4(H2‎...

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Q: write the functional group and IUPAC name

A: The given compound: The Functional group and the IUPAC Name of the compound has to be determined.

Q: 8. Assume that the following exchangeable cations are present in a 25 gram sample of a soil Cation С...

A: CEC of soil means the cation exchange capacity of soil CEC of soil = sum of the milliequivalents of ...

Q: 1. The instrumental signal from pesticide X in an unknown is 185.6 µA. When 25.0 mL of 0.0325 M pest...

A: Let the molar concentration of X in the unknown sample be 'a'.  

Q: SECTION B Answer ALL the questions. (19)(a) The Hess cycle and data to calculate the enthalpy change...

A: The enthalpy of decomposition of compound is defined as the amount of energy released or absorbed wh...

Q: How many atoms of hydrogen are there in NH4+?

A: Given-> (NH4)^+  

Q: A molecule is linear with the same terminal atoms, two bonding pairs and three lone pairs. It can be...

A: The given problem is based upon polarity of molecule.,

Q: If 1.14g  of the quicklime is to be used in slaking, how much of the Ca(OH)2 is to be obtained and u...

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Q: I.A Study of Intermolecular Forces of Attraction Professor Rowan is preparing for his experiment in ...

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Q: Give practical applications of chemical kinetics-related concepts in real life.

A: Ans. Examples of chemical kinetics in everyday life include digestion, photosynthesis, fermentation,...

Q: 6) What is the hydronium ion concentration of a 0.010 M solution of acetic acid? Ka for acetic acid ...

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Q: 1. The instrumental signal from pesticide X in an unknown is 185.6 µA. When 25.0 mL of 0.0325 M pest...

A: Solution: Given data-instrumental signal from pesticide X in an unknown is 185.6 µA, 25.0 mL of 0.03...

Q: identify the most polar part(s) of the molecule

A: Polar compounds are those compound in which dipoles are formed i.e., they can be easily converted in...

Q: How many liters of solution are needed to make a 1.66M solution containing 3.15moles of FeClg? MW= ...

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Q: In the 70 percent (v/v) isopropyl alcohol solution, the solvent is?   isopropyl alcohol ethanol wate...

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in...

Q: Calculate the freezing point of a glass of water of volume 250cm3 sweetened with 7.5g of sucrose

A: A question based on mole concept that is to be accomplished.

Q: B1. Write suitable products for following reactions Me m-CРВА product (a) excess H2O2 product (b) 1....

A: To write the suitable products for all the reactions given above:

Q: If you titrate 25.00 ml of a 530. mg/L ascorbic acid solution, boil it for 15 minutes and then titra...

A: KIO3 liberates iodine as: KIO3+5 KI+6 H+→3 I2+6 K++3 H2O

Q: What makes ice melt? Select the correct response: When the particles move very far apart, they gain ...

A: Answer: These questions are based on the properties of matter. First question is discussing about th...

Q: Which of the following elements has its name derived from its property of being slightly magnetic?* ...

A: Isotopes are the different forms of an element.

Q: Ph. Ph (Retel goroduet)

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Q: Calculate the AH for the reaction NO(g)+ 0(g) → NO2(g) given the following information NO(g) + O3(g)...

A: The change in enthalpy ( ΔH ) of a reaction can be found out using Hess's law of heat summation.  He...

Q: QUESTION 1 is not consistent with Which of the following spectroscopic measurements cyclohexanecarba...

A: The structure of the cyclohexane carbaldehyde is as follows:

Q: Whic‎h of the foll‎owing is not a mo‎nodentate liga‎nd ? Select one: a. OH- b. H2NCH2CH2NH2 c. H2O ...

A: Given,  Which of the following is not a monodentate ligand = ? Options are : a. OH- b. H2NCH2CH2NH2 ...

Q: Sketch the power density distribution for oxyfuel gas welding and GMAW process.

A: Oxy-fuel welding and oxy-fuel cutting are processes that use fuel gases and oxygen to weld or cut me...

Q: What is the mass in grams of silver chloride produced from 30.00 ml of 14.5M magnesium chloride? 2Ag...

A: The balance chemical reaction :  2AgNO3 + MgCl2  ----> Mg(NO3)2 + 2AgCl  Volume of magnesium chlo...

Q: As part of the Compounds of Copper experiment, copper(II) carbonate is acidified with hydrochloric a...

A: Answer - The correct option is (c) The recovery of copper will not be affected Solution - According ...

Q: (a)If 12.06 g of NH4+ was found in the soil, how many ions of NH4+ was present initially? (b)If 500 ...

A: Given :  Mass of NH4+ = 12.06 gm  Mass of H2O produced = 500 gm     

Q: Boron is difficult to obtain in its pure form because of its: (a) high meltir point. (b) very corros...

A: Metals are the electropositive elements.

Q: 3. Define corrosion current, corrosion product and electrochemical theory of corrosion.

A: Corrosion current is defined as the current produced in electrochemical cell due to occurrence of co...

Q: Calculate the volume of 0.0723 M EDTA needed to titrate 14.93 mL of 0.0763 M Mg(NO,),.

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Q: the general molecular formula for a cyclic alkene must be CnH2n False O true

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Q: In performing an experiment on freezing point depression, the solution was prepared by dissolving 2....

A: Given: Mass of salt=2.25 g The volume of solvent=20.00 mL The density of water= 0.997 g mL-1  The fr...

Q: Which of the following statements islare true about alkyl halides?" They are non-polar molecules. Th...

A: There are various types intermolecular forces present among the molecules-  1- hydrogen bonding 2- d...