QUESTION 18 Analysis of a hydrocarbon shows it to be 94.1% oxygen and 5.9% hydrogen. Determine the molecular formula of the compound if the molar mass of the compound is 34.02. (Atomic Weights: H = 1.01 O 16.00) O H₂O O H₂O2 O H302 O None of above

Q: A 237-g piece of iron, initially at 100.0 °C, is dropped into 244 g of water at 10.0 °C. When the…

A: The amount of heat required to increase the 1oC temperature of 1 g metal is known as the specific…

Q: Provide a name for each of the following molecules. -CEC-CH₂CH₂CH₂CH₂ SH OH Н HO 'H H OH SH

A: we have to name the given compounds

Q: Use electrode potential data in Table 19.1 to determine A,Gº for the reaction: 2 Al(s) + 3 Br₂(1)→…

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Q: The boiling point of water is about 200°C higher than one would predict from the boiling points of…

A: The boiling point of any aqueous solution or liquid depends on the intermolecular force between…

Q: Explain the origin of (a) absorption, (b) phosphorescence, and (c) Raman spectra. You may draw the…

A: Jablonski diagram describes electronic states of molecule and the transitions between them. The…

Q: his serie

A: Given: n=4 transitions To find the full frequency range

Q: What piece of metal will you heat (choose its number)? What piece of metal will you cool (choose its…

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Q: Arrange the following compound in the order of increasing acidity (least acidic first) I)…

A: Given compounds: I) Cyclohexanol II) 4-Nitrophenol III) Phenol IV) 4-Chlorophenol The acidity…

Q: The specific heat capacity of ethanol (C₂H5OH) is 2.44 J/g. K. What is its molar heat capacity (in…

A: Here we are required to find the molar heat capacity of ethanol

Q: Acids and Bases Identify the classification of these substances. The choices are: strong acid,…

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Q: Draw the two major products obtained in the reaction shown. + Br2 (one equivalent) CH₂Cl₂

A: Given : structure of reactant. And reagent This is a electrophilic addition reaction.

Q: Predict the splitting pattern for each signal in the ¹H-NMR spectrum for the following molecule…

A: we have to determine the splitting of the marked hydrogens in 1-HNMR spectrum

Q: 8. Which of the following arrangement is correct according to increasing stretching frequency? (A)…

A: Transition metal are those in which last electron enter the d subshell. Transition metals are placed…

Q: In an experiment, it is found that the pH's of four salts, AA, AB, AC, and AD are 5.0, 6.5, 11.0 and…

A: Given:  The pH values of AA, AB, AC and AD are 5.0, 6.5, 11.0 and 9.0 respectively.

Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of…

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Q: You should use care when dissolving H₂SO4 in water because he process is highly exothermic. To…

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Q: List the three requirements for a substitution reaction to proceed via the SN1 mechanism.

A: SN1 reaction is unimolecular substitution reaction given by given by alkyl halides, alcohols etc.…

Q: Using the pk, table, estimate pK, values for the most acidic group on the compounds below, and draw…

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Q: Suppose you burned 0.300 g of C(s) in an excess of O₂ (g) in a constant-volume calorimeter to give…

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Q: In a Chemistry lab experiment, typically, a solid chloride unknown (not the AgCl product) for…

A: The undried sample of solid chloride will consist of water , metal and chlorine in it. Since the…

Q: In the following synthesis, there are 2 steps that must be done in the correct order (i.e. Step #1,…

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Q: Provide a mechanism for the following reaction. Your mechanism must use curved arrows to represent…

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Q: [References] How many stereoisomers are possible for CHBrCIF provided that the central carbon has a…

A: Here we are required to find the number of stereoisomer

Q: For Water at 15 bar and 400°C What is the specific internal energy in kJ/kg?

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Q: Н OH E Select the molecules that are water soluble. OH A OH л F Н. Н- Н Н 0= B H -OH -OH -OH -OH…

A: Water is a highly polar molecule capable of forming hydrogen bonding.  Hence highly polar molecules…

Q: QUESTION 25 When 2.5 moles of calcium carbonate is added to 4.8 moles of hydrochloric acid, calcium…

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Q: What are the coefficients?

A: Given that, a redox reaction is H5IO6 + Cr → IO3- + Cr3+. We have to write the coefficients of the…

Q: Determine the acetic acid concentration in a solution with [CH3CO2-] = 0.25 M and [OH-] = 2.0 x…

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Q: In AAS, the technique measures the absorption of light by atomic species. One way to ensure that the…

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Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Given: The mass of iron taken = 19.7 g The initial temperature of iron = 99.34 ∘C The mass of water…

Q: Determine the major product of the reaction shown in the box ن NaBH CH₂OH ON OH امه بلات C .

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Q: How much of the K2CO3 will dissolve? b) Is the solution saturated or unsaturated? c) What is the…

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Q: Two gas mixtures, A and B, are compared for their carbon dioxide content. Mixture A has 50%…

A: Gas-A is given moles basis,so we need to convert to mass basis, by using molar mass of the…

Q: Please use 3 significant figures or 3 decimal places. What is the pH of a buffer is prepared, 1.00…

A: Aqueous Solution consists of a mixture of a weak acid and its conjugate base or weak base and its…

Q: If the equilibrium constant for A(g) + B(g) → 2C(g) is 0.11, calculate for the equilibrium constant…

A: We are having the equilibrium constant for given reaction and we have to predict the equilibrium…

Q: Use the References to access important values if needed for this question. The wavelength of a…

A: To Convert given wavelength (nm) of a color of orange light to  energy (kJ/photon)  given:…

Q: B. The copper concentration in a contaminated salt sample was determined by flame atomic absorption…

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Q: 4. Propose a synthesis of octan-4-one using 1-butanol as your only source of carbon in the product.…

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Q: HBr + SO2 →SO₂ + Br₂ Match the following for the above reaction. Drag and drop options on the…

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Q: Answer ALL parts of this question. Benzoic acid can be converted to the two products (A and B) shown…

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Q: The rotational spectral lines of 12C160 appear at higher frequencies than the rotational spectral…

A: Rotational spectroscopy deal with absorption and emission of electromagnetic radiation in microwave…

Q: Is there any other way they can be differentiated?

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Q: answers clearly. 1.1) From the concept of reversed SN2 Disconnection, draw the best set of positive…

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Q: Why is it normal to add a slight excess of silver nitrate solution when precipitating chloride ion?

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Q: Determine the pH of a 0.22M NaF solution at 25°C. The Ka of HF is 3.5•10-5

A: The Ka of HF is 3.5 × 10-5 .We have to calculate the pH of a 0.22 M NaF solution at 25 °C .

Q: A zinc pot (coefficient of linear expansion : ) is filled with mercury at 100 °C, then having a 10.0…

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Q: Draw the structural formula for the tripeptide Cys-Ala-Gly.

A: Peptide is formed by combination of amino acids. When amino acids are combined, there is release of…

Q: Silane, SiH, is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for…

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Q: Use the References to access important values if needed for this question. A chemical reaction is…

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Q: Calculate the quantity of energy required to convert 72.8 g of H₂O(s) at 0.0 °C to H₂O(g) at 100.0…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.