A 60.0 g sample of water (CW) at 8.0°C is mixed with 80.0 g water (HW) at 58.0°C in a coffee cup calorimeter. Assume the coffee cup is an isolated system. Calculate the final temperature. Show work.

Q: Calculate the volume of liquid in the test tube sketched below. Give your answer in milliliters, and…

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Q: The reaction 2A + 2B → M+ N has the rate law: Rate = k[A]?. At 25°C, k = 0.0107 L mol 1 s-1. If the…

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Q: OCH,CH, H* CH,CH-OCH, +H,O 5. C-CH, H + 2CH, - OH 6. CH,CH,-C-CH,CH, + H, .

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Q: 1. The diagram shows bubbles rising in a glass of fizzy drink. Why do bubbles get larger as they…

A: The solubility of gaseous molecules increases in solvent as pressure is increases. This is proven by…

Q: What is the pOH of a buffer solution that contains 45.0mL of 0.020M H3PO4 and 25.0mL of 0.0020M…

A: pKa1 of H3PO4 - 2.14 Given, Volume of H3PO4 - 45.0 mL Strength of H3PO4 - 0.020 M Volume of NaH2PO4…

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Q: QUESTION 1 Provide reagents for this transformation of starting compound. More than one step is…

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Q: A sample of technetium-99m with a mass of 4.61 ng will have decayed to how much of this radionuclide…

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Q: 2H2(g)+O2(g)-> 2H2O(I) How many L of H2 is needed to create 525.0g of H2O at 320.0 K and 555 torr?

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Q: व) होप्हभरीर लाय hanोइनक पजमकि P००वैपटको ०सै the fallowing orea tiog incladting stereochemisty कल…

A: ->Alkyne has nucleophilic character hence it give electrophilic addition reaction to triple bond.…

Q: Draw the products that form when the ester is treated with H,0 and NaOH. Differentiate products by…

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Q: correctly. Please help me answer all of them. I would appreciate it, this is my last chance, please

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Q: In Aspirin lab preparation a student used 69.0 g of salicylic acid and 30.0 g of  acetic anhydride.…

A: In the laboratory, we can synthesize aspirin by using salicylic acid and acetic anhydride in the…

Q: The measured cell potential, Ecell, for the cell shown is –0.3549 V at 25 °C. Calculate the H*…

A: If standard reduction potential values of two half cells are given then the half cell with less…

Q: 2NaN3 -> 2Na(s) + 3N2(g) What is the pressure of N2 in a 125.0 L container at 120C, from 520.0g of…

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Q: What is the pH of 10mL aliquot of toluic acid (with a concentration of .1837M) after 21.05 mL of…

A: Given- Volume of toluic acid =10 mL  Concentration of toluic acid= 0.1837M Volume of base =21.05 mL…

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Q: What is the pOH of a buffer solution that contains 15.0mL of 0.010M H3PO4 and 15.0mL of 0.020M…

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Q: If the buffer prepared by mixing 0.30 M C2H5NH;HCI(aq) with 0.50 M C3H;NH2 in the previous question…

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Q: What is the differences between an Oxygen atom (16 amu, atomic number = 8) and a Calcium atom (46…

A: Oxygen atom = 16amu Calcium atom = 40amu  Metal- it have tendency to lose electron. Non metal - it…

Q: You perform a titration on 9.50 mL of an HCl solution of unknown concentration. It requires 93.54 mL…

A: Balanced chemical equation for the reaction 8s as follows: HCl + NaOH -------> NaCl + H2O All the…

Q: What is the k a of a monoprotic weak acid if a 0.619 M solution has a pH of 4.242?

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Q: What quantity of charge is required to reduce 27.2 g of CrCl 3 to chromium metal? (1 faraday =…

A: Calculate the number of moles in 27.2g CrCl3       reduction of 1mole CrCl3 requires 3 moles of…

Q: Quercetin, a flavonoid found in fruit juice, was quantified by UV-Vis using external calibration.…

A: Given data:

Q: Quercetin, a flavonoid found in fruit juice, was quantified by UV-Vis using external calibration.…

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Q: For Cu concentration cells below, calculate Ecell using Nernst equation. Cu/Cu2+ (E°= +0.34 V)…

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Q: Write structural formulas for the products formed when acetophenone reacts with each of the…

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A: Give an example of reaction that supports the unusual stability of benzene versus alkenes. You need…

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Q: Chemistry WIll rate/give points thank you!! John is creating a 625 mM HEPES-KOH buffer in 250 mL…

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Q: Draw the major product(s) of the following reactions including stereochemistry when it is ap…

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Q: In the fictitious reaction below, the equilibrium concentration of A is 0.5039 M, B is 0.5617 M, and…

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A: Intermolecular forces exist between different molecules of a substance.

Q: What is the narrow graduated piece of glass equipment called? Why do you use an Erlenmeyer flask…

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Q: Hydrogen bonding is the dominant intermolecular force in C2H6 NH3 PH3 All of the above

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Q: Which of the following statements is incorrect? O In metallic indicator electrodes, the potential…

A: A multiple choice question based on electrochemistry that is to be accomplished.

Q: hardware salesman measures the mass of a box containing  1000  washers.  The mass is  0.7222   kg…

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Q: If Kc = 2.5 for the reaction: N2(g) + 3H2(g) = 2NH3(g) then * the equilibrium lies predominantly to…

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Q: Calculate the concentration of H+ in a solution of pH = 1.25.

A: pH of the solution = 1.25  Concentration of H+ = ?

Q: Part A FAD FADH, CH3(CH,),CSCOA Acetyl-CoA dehydrogenase Interactive 3D display mode H3C -CH3…

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Q: (a) What are the partial pressures of all the gases in the mixture? atm PNH3 0.31 atm PH2 i 0.12…

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Q: Question 2 The complex (Cu(NH,,"absorbs hight with a wareleng th af 342 nm.What is the value of A in…

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Q: Question 17 For the fullowing coordination complex:(Fe(CO,O4)(H,0)) are pre se nt lif none State…

A: Interpretation- We have to tell about that which type of geometrical isomerism is showing by the…

Q: Question 7 for the compound.

A: Nomenclature of cyclic compounds:  1. Cyclic ring is the parent chain  2. Numbering should be in…

Q: When and why is phosphate ion considered a water pollutant?

A: Phosphate is a source of Phosphorous in natural water bodies that are required for the growth of…

Q: 3. Compound X has the formula CasHaBrz. Compound Y reacts with excess H Pd to give GuHooBr

A: First calculate DOU of C45H84Br2 Degree of unsaturation ( DOU) :  DOU = 2C + 2 - H - X / 2  Where…

Q: When 1-methylcyclohexene is treated with HI/ROOR, the product will be: O 1-iodo-2-methycyclohexane O…

A: • when 1-methylcyclohexene is treated with HI/ROOR and HCl/ROOR  • when alkene undergoes ozonolysis…

Q: Consider the reaction 2Na + 2H2O → 2NAOH +H2 If 10g Na reacted with 0.8 g H20, what would be the…

A: 3

Q: Draw structures for (i) N-ethyl-N-methyl-4-methylpentanamide and (ii) t-butylamine

A: Organic compounds having -CONH2 functional group are called amides If one or both H-atoms in amide…