What is the change in enthalpy when 1.50 moles of H₂ are reacted with an excess O₂ of according to the following balanced chemical reaction: 2 H₂(g) + O₂(g) → 2 H₂O(1)

Q: A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of…

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Q: One mole of gas expands isothermically to double its volume. If the gas temperature is 320 K, what…

A: Temperature (T) = 320 K Number of moles = 1mol Volume(V2) = 2 volume (V1)

Q: B C D H₂O, KOH H₂O H₂O Dasic O neutral acidic basic neutral O acidic O basic O neutral acidic basic…

A: We have to find that the solution of pH of solution is rises or lowers because of some changes…

Q: Indicate all the resonant structures. :O: +

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Q: A solution that absorbs radiation with a λmax at 475nm is placed within a UV visible…

A: We we will use the formula shown below-

Q: Use this equation to calculate the percentage of nitrogen in the sample described below. A sample of…

A: Given, % N = 0.04489×V(P-P°H2O)W(273+tc)where,V= volume of N2collected over water tc=temperature P=…

Q: The specific heat capacity of liquid mercury is 0.14 J g¹ K-¹. How many joules of heat are needed to…

A: Specific heat capacity is defined as the amount of heat required to raise the temperature of one…

Q: A student runs a reaction in a closed system. In the course of the reaction, 64.7 kJ of heat is…

A: Given: During the reaction, the amount of heat released to the surroundings = 64.7 kJ The amount of…

Q: CaO(s) + 2HCI(g) → CaCl₂(s) + H₂O(l) AS⁰ = C₂H4(g) + H₂(g) →C₂H6(g) AS⁰ = J/K J/K

A: Using the provided standard entropy values of some substance, we can determine the entropy of…

Q: At its boiling point, a system is at equilbrium. 0 At its melting point, a system is at equilbrium.…

A: In this question, select all the apply for the phase change.

Q: Give the general structures of an ester, carboxylic acid, and alcohol. If you are given each sample…

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Q: Determine the pH of a 0.375M solution of C5H5NHBr (pyridinium bromide). Kb table is needed to…

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Q: What is a thermodynamically reversible process? How is the amount of work obtained from a change…

A: This is a problem is based on Thermodynamics. In thermodynamics there are two pathways via which any…

Q: entify the alkyne you would use to prepare the following ketone via acid-catalyzed hydration, and…

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Q: Indicate the relationship between the following compounds. H Br H CH3 CH₂ Br H (If the image above…

A: Both the structure are Enantiomers to each other.  Enantiomers:- those optically active compounds…

Q: A chemist prepares a solution of mercury(II) iodide (Hgl.,) by measuring out 0.00090 μmol of…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: For each row in the table below, decide whether the pair of elements will form a molecular compound…

A: An element is a fundamental item that can't be easily broken into smaller pieces. Covalent bond is…

Q: Q1. Provide short definitions (2 sentences) for the following and bear in mind often a diagram could…

A: (a) Retrosynthetic analysis is a method  for solving problems in an organic syntheses planning. it…

Q: What is the pressure in a 7.00 L tank with 1.24 grams of hydrogen gas at 375 K?

A: Given that Volume (V) = 7.0L Temperature (T) = 375K No. of moles = weight/molecular weight = 1.24/2…

Q: How many grams of manganese metal will be deposited from a solution that contains Mn2+ ions if a…

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Q: Write the balanced chemical equation between  H2SO4  and  KOH  in aqueous solution. This is called a…

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Q: 4. Proton NMR C₂H12 8 5 7 6 1 5 4 3 Chemical Shift (ppm) 2 6 1

A: Structure will be : isopropyl benzene

Q: What are the product(s)?

A: We have been given a reaction of alcohol with HBr. Alcohol is an organic compound in which  hydroxyl…

Q: (g) (i) Use VSEPR theory to draw the shape of the [XeFs]* cation. (ii) Construct the appearance of…

A: First we have to determine the shape of the molecule using VSEPR theory, then we have to check the…

Q: Macmillan Learning A balloon containing methane gas has a volume of 5.31 L at 65.0 °C. What volume…

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Q: Consider the gas sulfur trioxide which has a formula of SO₃. This gas has a molar mass of 80.07…

A: Given : mass = 43.4 g

Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: To graph the heating curve of the Substance X, if a total amount of heat observed by the sample is…

Q: The red arrow in this graph indicates the changes that occur in the nucleus of an atom during a…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: What is the classification for a monosaccharide with five carbon atoms and a carbonyl group on the…

A: Correct answer - ketopentose

Q: Draw an alkyl halide that produces ONLY the following alkene in an E2 elimination. Ignore any…

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Q: 2. Predict the Organic Products. ct the major organic product(s) for each of the following…

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Q: 2. Using the given reaction of esterification, complete the table below by drawing the synthesized…

A: A general esterification reaction is represented as follows: ROH + R1COOH → R1COOR + H2O 'R' and…

Q: Which of the following terms are mismatched (false). 1.) Electrons are lost in oxidation reactions…

A: we need to look at the definitions of oxidation and reduction to identify the mismatched terms.

Q: 1. Provide the reagents necessary to accomplish the following transformations. Ebr NH q) H Ar p)…

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Q: 3. Determine which nuclide will be unstable. justify your answer, and give the nuclear" reaction for…

A: Elements having greater (neutron /protons) ratio has a tendency to undergoes radioactive decay…

Q: Calculate AG for the reaction given below if the partial pressure of NO₂ is 0.220 atm and the…

A: This is simple problem of chemical equilibrium where we have to determine if the reaction is in…

Q: 30. What volumes of H₂ (g) and O₂ (g) at STP are produced from the electrolysis of water by a…

A: The anode reaction in the electrolysis of water is 2 H2O(l)→O2(g)+4H+(aq)+4e- The cathode reaction…

Q: Decide whether each pair of elements in the table below will form an ionic compound. If they will,…

A: Ionic compound are the compounds which are formed when the metal and non-metals reacts with each…

Q: Ⓒ Macmillan Learning Write the balanced chemical equation between H₂SO, and KOH in aqueous solution.…

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Q: 1.03 2. DMS Click and drag to start drawing a structure.

A: Ozonolysis reaction.

Q: Rank the following alkenes in order of increasing reactivity to hydrogenation. A) | < || < III B) I<…

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Q: b) Optical isomers can often be formed during these reactions. For products A-H. indicate how many…

A: Mechanism:

Q: 6. Draw the structures for each of the following IUPAC names. A) Ethyl formate B) Methyl Benzoate D)…

A: We first draw main chain then draw branches and other substituents.

Q: Carbon disulfide and CS₂(g)+30₂(g) → CO₂(g)+2SO₂(g) Suppose a mixture of CS₂, O₂, CO₂ and SO₂ has…

A: According to Le Chateliar principle  if a system is in equilibrium is subjected to change of…

Q: 15.0 L of an ideal gas at 298.0 K and 3.36 bar are heated to 350.0 K with a new pressure of 2.70…

A: Ideal gas are gases which have no intermolecular force of attraction. All Ideal gases obey combined…

Q: Which of the following ionic compounds is INSOLUBLE? O LIHCO3 O BaF₂ O Na₂S O Mg(NO3)2 O CaCl₂

A: Correct answer - BaF2

Q: 47. Fill in the blanks in the table. Both AH and AS refer to the system. MISSED THIS? Read Section…

A: Answer:- This question is answered by using the simple concept of relationship among enthalpy,…

Q: Macmillan Learning Complete and balance the precipitation reaction. Include physical states. Refer…

A:

Q: Which disaccharide is formed from glucose and fructose? 1 A

A: Answer - Sucrose

Q: 30. 31. 32. 33. (d) Cl + e C1²- What volumes of H₂ (g) and O₂ (g) at STP are produced from the…

A: The explanation is given below-