Name: General Chemistry I Laboratory Manual, 2021 Revision Hess' Law Pre-Lab Date: 1) Determine the AH° for the reaction shown below using standard heat of formation values from your textbook. Fe(s) + 3/402(g) → 1/2Fe2O3(s) 113 2) For the reaction above, how much heat would be liberated by the combustion of 2.000 g of iron metal in excess oxygen? 3) If 2.000 g of iron metal are reacted in a calorimeter with a heat capacity of 350.0 C what would be the final temperature of the calorimeter if its initial temperature were 23.0°C? Ca

Q: Match the descriptions to the structures. OH OH ABA AHA ACA OH AIA H₂N less acidic substituted…

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Q: A typical helium weather balloon has a volume of 75.0 liters at 25oC and 720 mm Hg.  Suppose the…

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Q: For the 178 Hf isotope, please write the following balanced nuclear reactions: 1. alpha decay 2.…

A: Alpha particle is 2He4  Beta particle is -1e0  Positron is +1e0 and  electron is -1e0

Q: -24. The following data are for a liquid chromatographic column: Length of Packing Flow rate VM Vs A…

A: Given, Chromatic mixture of species A,B,C and D. Length of packing , L =24.7 cm

Q: A 0.10 M solution of a weak monoprotic acid has a hydronium-ion concentration of 8.0 x 10-4 M. What…

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Q: The image below shows a portion of a ¹H NMR spectrum (ppm). 2.0 Choose the partial structure that…

A: The given portion of the 1H-NMR spectrum has one triplet neat 0.9 ppm and one quadruplet (quartet)…

Q: ~OH ABA AHA ACA OH AIA H₂N less acidic substituted phenol a primary alcohol a more acidic…

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Q: You have a mixture of 100 proteins with molecular weights between 30 and 45 kDa. All proteins in the…

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Q: A 1.132 g sample of KHP (HKC8H404) required 28.05 mL of NaOH solution to reach endpoint. Calculate…

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Q: Water has a pKa of 15.7. Methane has a pKa of 48. Hydrofluoric acid has a pKa of 3.2. Acetic acid…

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Q: Distinguish between High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE) and Linear Low…

A: High density polyethylene:-  a) high density b) stronger intermolecular forces , stronger than low…

Q: 2-pentanone acetophenone phenol OH Butanal propiophenone phenylmethanol H OH Test: Positive Sign:…

A: In this question, we have got two different compounds in three-row and we have to tell about the…

Q: Professor X mixed two solutions in a test tube and observed that the mixture was warm. He also tried…

A: Here we have to determine which following pair of liquid on mixing heat energy will be produced and…

Q: Draw the structures of the compounds below and give the number of peaks observed in their 1H and 13C…

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Q: . Note the half-reaction on the oxidation side. As the electron is taken away through the electric…

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Q: A tank containing carbon dioxide at 400K and 50 bar is vented until the temperature in the tank…

A: Assuming there is no heat transfer between the gas and the tank, find the pressure in the tank at…

Q: ▪ True or False: Mass spectra are like a fingerprint. Every compound has a unique one. ▪ Which mode…

A: The given statement is: Mass spectra are like a fingerprint. Every compound has a unique one. The…

Q: Consider the following reactions and choose the correct structures from the pool of choices below.…

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Q: Recall how to write Lewis electron dot symbols of (main group) elements

A: Here we have to write the Lewis elctron dot symbols of the main group elements.  From the Lewis dot…

Q: A galvanic cell is powered by the following redox reaction: HNO₂(aq) + H(aq) + Fe²* (aq) 3+ NO(g) +…

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Q: Seconds (s) Tap H2O Temp (°C) Salt Solution (+ 2.5 mL salt) Temp (°C) Salt…

A: Freezing point temperature is the temperature when liquid phase and solid phase of the substance…

Q: Consider the following reactions and choose the correct structures from the pool of choices below.…

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Q: Consider the following reactions and choose the correct structures from the pool of choices below.…

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Q: The specific heat of ice is 2.100 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

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Q: Consider the reaction   2N2(g) + O2(g) → 2N2O(g)   Use the standard thermodynamic data in the…

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Q: | NaOH IN 25x10³ Q3: In a carbonate mixture containing HCO, CO², and NaOH, either alone or…

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Q: Draw the structures of the TWO Reactants and the Reagents/Conditions that will be needed to…

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Q: 26) Name the following compound CH₂CH₂CH3 .CH3CH₂CCH₂CH3 CH3 A) 3-ethyl-3-methylhexane B)…

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Q: Draw the two daughter ions that would be observed in the mass spectrum resulting from an alpha…

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Q: Provide a multi-step synthesis of the target structure on the right from the starting structure on…

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Q: Compound (2E,4Z,6Z,8E)-2,4,6,8-decatetraene has been cyclized to give 7,8-dimethyl- 1,3,5-…

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Q: Provide the curved arrow mechansim of o-xylene treated with Na/NH3 in EtOH. What is the name of the…

A: Concept based on the mechanism of organic chemical reactions.

Q: What is the oxidation number of phosphorus in Ni3(PO4)2?     +4                         +3…

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Q: Draw the structures of the TWO Reactants that will be needed to synthesized the desired product from…

A: Given reaction is acid catalyzed aldol reaction...

Q: Following are two possible retrosynthetic analyses for the anticholinergic drug cycrimine. N govor…

A: Retro-synthetic analysis is process by which one can get the possibility synthons / synthetic…

Q: The equilibrium constant is given for two of the reactions below. Determine the value of the…

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Q: For an aqueous solution of 0.45 M Ba(OH)2, calculate the values of the following  parameters: [H+ ],…

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Q: Nou are herforming estowification reaction using 5 g of 1- heranoic acid CmW = 116.16 gmol-1) and…

A: Mass of 1-hexanoic acid = 5 g molecular weight of 1-hexanoic acid = 116.16 g/mol  Molecular weight…

Q: Question: Given that the change in temperature was 3 degrees celcius and the volume of sand in the…

A: Change in temperature = 3 °C  specific heat for dry sand = 0.80 J/g·K  density for sand = 2.3 g/mL.…

Q: Draw the structure for the two compounds below and give the number of peaks that would be observed…

A: Given organic compounds are, m-chlorobenzamide s-cis-2,3-dimethyl-1,3-butadiene. In 1HNMR number of…

Q: ? + {H → 15 ← Oci 8 GT 8 15N+?

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Q: 1. Calculate &G for the reaction below at 25.0 °C 2 Na(s) + 2 H₂O()→2 NaOH(aq) + Hz(g) given…

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Q: What series of reaction should be done to come up with the desired product? Refer to the reaction…

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Q: A 5.0-g sample of spinal fluid contains 3.75 mg of glucose. What is the percent by mass of glucose…

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Q: What is the hydronium (H3O+) concentration of a solution with a pH of 1.60?

A: We have here asked to find the hydronium ion (H3O+) concentration of a solution? Given the PH = 1.60…

Q: Ch. 16 - Carbohydrates 1. Classify the following carbohydrates in terms of the carbonyl type and the…

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Q: a)Identify types of hybridization for each atom in the following molecules: i. H₂N. ii. OH NH CN

A: a) We have to give the hybridization of the each atoms in the given molecules.

Q: Predict product B for the following reaction sequence below. 2-methyl-2-butene + water --> A (if…

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Q: 1. H₂S Total # of Valence Electrons: 8 Lewis Structure (show all resonance structures if applicable)…

A: H2S :  The no. of valence electrons = 1*2+6*1 = 8 S is more electronegative than H. So, H-S bond is…

Q: 53. Most of the sodium chlorate, NaCIO3, produced in the United States is converted into chlorine…

A: According to the question we have a reaction of converting sodium chlorate into chlorine dioxide…