2. Assuming that all groups carried out the experiment and associated calculations correctly, which would you expect to agree better with the known value of AH any one group's average value or the entire class' average value? Explain.

Q: Calculate the pH for each of the cases in the titration of 35.0 mL of 0.180 M KOH(aq) with 0.180 M…

A: Answer: In this question we have calculate the pH of three types of solutions: 1. Base solution 2.…

Q: and 23.Different forms/conformations of the same molecule

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Q: Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers,…

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Q: Imidazoleglycerol-phosphate dehydratase is an enzyme in the histine biosynthesis pathway. It…

A: We have find out the most stable resonance structure of D-erthyro-imidazole-glycerol phosphate.

Q: . Potassium crystallizes in a body-centered cubic lattice, and its atomic radius is 235 pm. The…

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Q: Draw the structures of all possible organic products formed in the reaction. Do not draw counterions…

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Q: Hydrazine, N, H,, reacts with oxygen to form nitrogen gas and water. N,H,(aq) + 0,(g) - N, (g) + 2…

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Q: radical halogenation of alkene Halogenation of alkyne Formation of trans-alkene from the alkyne…

A: Organic reactions are those in which organic reactant react to form organic products. Intermediates…

Q: Balance each redox reaction in acid solution using the half reaction method. II. 9. As → H2ASO4¯+…

A: Balanced the redox reaction under acidic condition by using half reaction method--

Q: 1. Complete the reactions,write the major product only and name the product using IUPAC system. +…

A: Here we are required to find the product of the different reaction

Q: Predict the products of the following reactions. When more than one product is expected, predict…

A: protonation of alcoholic oxygen by acid  loss of water as leaving group  carbocation rearrangement…

Q: When 0.378 g of sodium metal is added to an excess of hydrochloric acid, 3930 J of heat are…

A: Given-> Weight of Na = 0.378 g Heat produced for 0.378 g = 3930 J  (1 KJ = 1000 J)

Q: Sea water contains an average of 1.08 x 103 ppm of Na+. Calculate the pNa for the sea water.

A: Given: Concentration of Na+ = 1.08 x 103 ppm Molar mass of Na = 23 g/mol

Q: Calculate the amount of heat released during the combustion of: a. 0.30 mol of C3H6O b. 100 g of…

A: Combustion :- The process of burning a compound in excess of air or oxygen is known as combustion It…

Q: A chemist dissolves 461. mg of pure barium hydroxide in enough water to make up 180. mL of solution.…

A:

Q: Select the most appropriate reagents for the transformation. HO, The best reagents are: О 1. NaBH,…

A:

Q: Show how the compound can be synthesized using acetylene and butyl bromide as starting materials.…

A: Here we are required to synthesis the given compound from butyl bromide and acetylene as Starting…

Q: is titration with 0.123M solution of NaOH calculate the ph of the equivalence point ka=1.8x10^-7

A: Given, Ka = 1.8 ×10-7 pKa(HA) = 6.74 Molarity of HA = 0.124 M Volume of HA = 95.6 mL Molality of…

Q: Show that [4+4] cycloaddition of two butadiene molecules to give cycloocta-1,5-diene is thermally…

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Q: ƏS др According to the equation dA = -SdT – pdV, (2), | ƏT

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Q: Draw the resonance contributors for the following cations, anions, and radicals. CH2

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Q: P18.19 A technique for radioactively labeling proteins is electrophilic radioiodination in which an…

A: I131 is a radioactive substance with half-life, t1/2 = 8.02 days

Q: Sodium lauryl sulfate has the same use in embalming fluids as: 1. sodium phosphate 2. citrates 3.…

A: Sodiun lauryl sulfate used in fluid as surfactants.

Q: Q2: What is the theoretical oxygen demand of sucrose 1.25 g/L solution? Write down the…

A: By the help of chemical reaction equations, the exact amount of organic matter present represent…

Q: A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. For the water to…

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Q: Show how the compound can be prepared from acetylene and alkyl halides with four or fewer carbon…

A: Given ketone is :

Q: СООН H- HO HO РСС H HO H ОН CHO

A: PCC converts Primary  alcohol to Aldehyde and Secondary Alcohol to Ketones.

Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

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Q: 4.Complete the following reaction H SO, (a) + ΗΝΟ, CH3 (b) FeCls + Br2 CH3 Br. (c) + H,SO4 Br

A: Aromatic electrophilic substitution reaction: Aromatic electrophilic substitution reactions are the…

Q: Given for 3-5: If the pH of lake water falls below 5.0, it is considered as "dead". Taal lake has a…

A: Given that, [OH-] =1.0×10-4 M Then,

Q: A 1.48 L buffer solution consists of 0.128 M butanoic acid and 0.338 M sodium butanoate. Calculate…

A:

Q: Describe or draw PH scale diagram and name one acid and base

A: A pH scale is used to measures how acidic or basic a solution is. The pH scale ranges from 0 to 14.…

Q: In a saturated solution of a hypothetical phosphate M3PO4, [PO43]= 3.3 x 10-5 M. Calculate Kp for…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: How many grams of mercury (Hg) are produced from 87.6 grams of mercury(II) sulfide? 4 HgS + 4 CaO…

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Q: Draw the structures of all possible organic products formed in the reaction. Do not draw counterions…

A: Here we are required to show the formation of the product formed when anhydride and alcohol react

Q: 2. Using the average molarity in #1, determine the total hardness of water sample used in the…

A: Using 1,MEDTA=MCaCO3VCaCO3VEDTA

Q: Organometallic reagents such as sodium acetylide undergo an addition reaction with ketones, giving…

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Q: A waste heat exchanger is used to absorb the energy from the complete combustion of hydrogen sulfide…

A: First we would use heat of combustion of hydrogen sulfide to calculate the heat energy evolved in…

Q: 1/ For each of the molecular formulas, determine the number of elements of unsaturation and draw 3…

A: Note: According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: The rotational partition function for 1271 1271 at the equilibrium bond length is equal to 929.…

A: Given qrot = 929 To determine qrot if the bond was strectched by a factor of 1.35

Q: 6. In which molecule is sp? hybrid orbitals used? a. CH4 d. HCN c. SF6 d. AsCl3 e. C2H4 7. Which of…

A: Bond polarity Is depend on electronegativity diffence in two atoms. Geometry of molecule is based on…

Q: Which of the following accurately describes the major species in solution at point C on the…

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Q: Analyze both reactions and indicate whether the equilibrium tends to favor the reactants or the…

A: Given reactions are :  Options are :

Q: eat 13 million litres of waderr pare day at a freatment plam water Gerce 12 ppm9 alum dose is…

A: Given as Flowrate Q=13 million liters per day (13 MLD) Alum dose = 12 ppm                   =12 mg/L

Q: Assume an organic compound has a partition cocfficient between water and ethyl acetate equal to…

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Q: Two solutions, 100.0 mL of 1.00 M AgNO3 (aq) and 100.0 mL of 1.00 M NaCl (aq), both initially  at…

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Q: The decomposition of hydrogen peroxide to water and oxygen 2H,O2 → 2H,0 + O, is a first order…

A: Given: Rate constant (k) = 0.0410 min-1 Order of the reaction = 1

Q: (a) Classify the following as primary, secondary or tertiary alcohols: i. 2-methylpropan-2-ol:-- ii.…

A: Classification of the following alcohols

Q: Complete the electron-pushing mechanism for the base-promoted hydrolysis of an ester shown in the…

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Q: Draw the Lewis structure and geometry shape for SF6 Don't forget to show the number of available…

A: SF6 Central atom = Sulfur Side atoms = Fluorine