Q. A black-color balloon filled with He has an initial volume of 3.5 L at 25 °C. Under sunlight it expanded to 5.0 L against a constant pressure (1 atm). The final temperature reached 43 °C, assume the heat capacity of the balloon is 36.0 J/°C, calculate its internal energy change in J

Q: Reaction 1: H₂(g) + Cl₂(g) ->> 2HCl(g) AH = -184.6 kJ Reaction 2: 20F2(g) O2(g) + 2 F2 (g) AH =…

A: Well, we have to use the mole concept to calculate the answers. The balanced reaction and ∆H are…

Q: What is the steric number (SN) for COCl2?   3 5 2 4 1

A: Steric number is the sum of number of bonded atoms and lone pairs.

Q: Which of the given below is a substitution reaction?

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Q: Which is the balanced equation for: C3H8+ O2 CO2 + H₂O O 3C3H8 +502→ 4CO2 + H₂O O 4C3H8 +2 02 → CO₂…

A: In the given question we have to balance the following reaction, we have to choose the proper…

Q: Let's check the phone application "buffers" for it's ability to calculate how to prepare a phosphate…

A: The Henderson-Hasselbalch equation can be used to determine the amount of dibasic phosphate required…

Q: Using up and down arrows, write the orbital diagram for the Mn25 atom.

A: Solution in image format  given below

Q: 3+ Complete the table below. For example, in the first row decide whether Sc is a cation or anion.…

A: Cations are ions that are positively charged and  anions are ions that are negatively charged.If an…

Q: For CaF20) Ca (aq) + 2 F (aq) + 2 F (agh K= 3.9 X 10 at 25 °C and the standard Gibbs energy of…

A: GivenCaF2(s) ⇔ Ca2+(aq)  + 2F-(aq)K = 3.9 × 10-11T = 25°C T = (273.15 + 25) = 298.15 K∆GCaF2(s)° =…

Q: Question A11 (a) Write the full electronic configuration of Cu, using s,p,d,f notation. (b) Complete…

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Q: 1 LOCH3 NO₂ IV LOCH3 LOCH3 NO₂ NO₂ HNO3/ H₂SO4 OCH 3 NO₂ || O₂N V ||| LOCH3 LOCH3 NO₂ NO₂

A: If an Electron donating group (EDG) is attached to the benzene ring then it will direct the incoming…

Q: When cis-1,2-cyclopentanediol reacts with acetone in dry HCl, compound M is formed. What do you…

A: On the basis of reactants we can predict the product M. On the basis of properties of M we can…

Q: CH3 CH₂CH=CHCHCH3 CHỊCH H₂O CH3 CH₂CH=CHCHCH3 CH3 H₂C CHCHCHCH3 OH OH 1-chloro-4-methyl-2-pentene…

A: K.C.P. : The full form of KCP is Kinetically Controlled Product. This product formation involves…

Q: MeO. OH H OMe NO₂ CHO OMe 1. NaBH4 2. PBr3, Py 1. PhOCSC1, Py 2. Bu3SnH, AIBN OSIMe₂t-Bu

A: NaBH4  is one type of reducing agent will reduce all aldehyde, ketone and Iminium ion. Then we use…

Q: Enthalpy changes in chemical reactions Read through pagos 18-20 in your laboratory manual for…

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Q: Arrange the following in increasing solubility of Agl in different solutions. 1. saturated solution…

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Q: Reflection should be at least 3 sentences. Use the following sentence starters as a guide. I feel…

A: Unit reflection is a process in which a student reflects on what they have learned during a specific…

Q: Alkalinity is normally measured in terms of CaC03. What is the formula weight of this compound? In…

A: Alkalinity, or the ability of water to neutralize acid, is the capacity of water to resist acidic…

Q: 2. From the virtual observation, how will you know if a test has a positive result? Give example. 3.…

A: 2) Colour change. 3) Double bond gets brominated. 4) Benzene is Aromatic in nature.

Q: quat

A: The Karplus equation is a mathematical relationship used to predict the coupling constant (J-value)…

Q: The conversion of reactant I to product G is preferred at _____ temperature and is under ______…

A: Kinetic control is where product ratio is determined by the rate at which products are formed in a…

Q: Calculate the mass of fluorine (in g ) contained in 61.0 g of copper(II) fluoride.

A: 1.Copper (ll) flouride is CuF2 . 2. Given mass of CaF2 is 61. 0 g    Mass of fluorine (F) =?

Q: a) Draw the Lewis structure for NCI3 b) State the VSEPR notation. c) Predict the shape of the…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: For each pair of compounds listed, check the box next to the one with the higher boiling point.…

A: We have been given three pairs of compounds and we have been asked in each pair which compound has…

Q: 26. CH, CH OH H3C- -CH-CH-CH3 What is the correct name for the above compound? a. 2-methyl-3-butanol…

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Q: Calculate the percent by mass of chlorine in ammonium chlorate

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Q: Sn1 Sn2 E1 E2 Ecb1 Br (H3C)₂HC-N-CH(CH3)2

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Q: 4. If element X combines with oxygen to form an ionic compound X₂O, what is the charge of element X?…

A: 4. Here given---- X combines with oxygen to form an ionic compound-----  X2O Let, the oxidation…

Q: 2. Carbonic acid (H₂CO3) and bicarbonate (HCO3) act as buffers in the blood. (a) What is the origin…

A: 2a.) The carbonic acid is present in blood in the human body. Carbonic acid is formed in the human…

Q: Which of the following bond is the most polar? H — F H — O C — N C — H C — O

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Q: Calculate the mass of nitrogen dissolved at room temperature in an 81.0 L home aquarium. Assume a…

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Q: (d) (e) Find the molecular formula of a compound composed of 87.73% carbon and 12.27 hydrogen and…

A: (d) Given compound contains 87.73 % carbon and 12.27 % hydrogen.   Molar mass of 84.1 g/mol    (e)…

Q: The molecules of a certain gas sample at 321 K have a root-mean-square (rms) speed of 271 m/s.…

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Q: Use the following data to estimate AH°f for magnesium fluoride. Mg(s) + F₂(g) → MgF₂(s) Lattice…

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Q: What mass (g) of sodium hydrogencarbonate would be required to completely neutralise a typical ant…

A: An ant injects a fluid that contains 50% by volume of methanoic acid when it bites. An average ant…

Q: The average human contains 3.0 liters of blood having a pH of 7.35. Calculate the number of moles of…

A: The relation between pH and concentration of H3O+ ions is pH=-log[H3O+]

Q: When 0.144 mol of CIFy is injected into a 1.00L flask, the following equilibrium is esablished.…

A: Given, 2ClF3(g)⇌Cl2(g) + 3F2(g) Initially moles of ClF3 = 0.144 mol At equilibrium, moles of ClF3…

Q: Part C If the compound has a molar mass of 156 g/mol, what is its molecular formula? Express your…

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Q: What is 1.0 mg/L Na2HPO4 solutions in M (mol/L).

A: According to the question, The solution of sodium hydrogen phosphate Na2HPO4 = 1.0 mg/L which means…

Q: Predict the reactants and draw the energy diagram that shows the transition state of the reactants:…

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Q: The solubility of nitrogen gas in water at 25 °C and pressure 1 bar is 6.3 x 10-4 mol/L. Calculate…

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Q: 150.0 mL of 0.50 M sodium phosphate is added to 75.0 mL of 0.35 M magnesium nitrate. Calculate the…

A: Given,  Volume of sodium phosphate Na3PO4= 150.0 mL The concentration of sodium phosphate Na3PO4=…

Q: For each IUPAC name, draw the complete structure. (a) (25,3R…

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Q: Provide the name of the functional group attached to the aromatic ring. "Do not include aromatic in…

A: We have find out the name of functional group attached to aromatic ring.

Q: Balance the decomposition reaction of sodium chlorate into sodium chloride and oxygen when heat is…

A: Many complicated compounds decompose into a number of simpler molecules during the breakdown…

Q: A certain liquid X has a normal boiling point of 141.20 °C and a boiling point elevation constant K…

A: Given :-  Mass of Zinc chloride, ZnCl2 = 0.12 kg = 120 g  Mass of Liquid X = 800. g = 0.8 kg  Kb for…

Q: Usually the percent yield is more than 100%. O True False

A: We have to identify if the given statement is true or false

Q: Consider the cell: Pt(s) | Sn²+, Sn4+ || Fe2+ | Fe(s). Starting with 1 M each of Sn²+, Snª+ and…

A: For determination the concentraion of different species, first of all we calculate the cell…

Q: Consider this: PCIs decomposes to PCI3 and Cl2 according to the equation PCI5 = PCI3+Cl2 When a…

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Q: ii) ces shown above would best be described as: d. aliphatic hydrocarbons e. aromatic hydrocarbons…

A: Hydrocarbons are the compounds that are made up of carbon and hydrogen atoms.We have been asked to…

Q: Question 4* Calculate the solubility product constant at 25°C for silver iodide, Agl (s), given that…

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