Calculate the value of internal energy if 670J of heat energy is absorbed by the surrounndings and 230 J of work is done by the system.

Q: Draw the product of this Robinson annulation reaction. Ignore inorganic byproducts. KOH, CH3CH2OH…

A: In Robinson annulation first of all Michael addition reaction occur then Aldol condensation occur.

Q: Which ions are formed when Ca(OH)2 dissolves in water to form ions?

A: Given ; formula = Ca(OH)2

Q: linear b. trigonal plana С. :0: :Ci-C- er of domains on central atom on Domain Geometry

A: As it has three sigma bonds, so it has sp2 Hybridization.  Shape = Trigonal planar  (b) is correct…

Q: Solve for the value of internal energy, if 632 J of heat energy is absorbed by the system and 318 J…

A: The internal energy change can be determined by using first law of thermodynamic. ΔU = Q - W

Q: If Z = 1.00054 at 0 °C and 1 atm and the Boyle temperature of the gas is 107 K, estimate the values…

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Q: 1. A substance that shows the endpoint of titration  2. Type of error in which the volume delivered…

A: The questions are related to the titration and are solved in the following step.

Q: Part A: Find the value of the specific rate constant, k, for the data shown in the graphs in…

A: The graphs given are,

Q: A certain quantity of neon gas is under 1.05 atm pressure at 303k in a 10.0L vessel. How many moles…

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Q: A sample of a gas mixture contains the following quantities of three gases. compound mass CO 1.72 g…

A: Ideal gas equation will be used to calculate the pressure of individual gases and it will be given…

Q: What is the rate law for the following reaction, given the data below? 2 NO + H2 N20 + H20…

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Q: Determine the K, for Cug(PO)>(s) Part A An electrochemical cell is set up in the following…

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Q: For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all…

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Q: An analytical chemist is titrating 187,7 ml. of a 0.4400M solution of isopropylamine ((CH,), CHNH,)…

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Q: The IUPAC name for the following molecule is: Br но ÕH (3R, 4R)-3-bromo-4-hydroxyhexanal (3R,…

A: Every chiral center has a certain configuration that R or S. Configuration of chiral center used in…

Q: Why does hydroboration proceed with anti-Markovnikov regioselectivity? O Partial charge character…

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Q: At 25 °C, an aqueous solution has an equilibrium concentration of 0.00425 M for a generic cation,…

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Q: Draw the conjugate base of C5F5H. Include lone pairs of electrons on all atoms. Add non-zero formal…

A: C5F5H — Pentafluorocyclopentadiene

Q: Identify which of the following are carbohydrates. Check all that apply. • View Available Hint(s) OH…

A: We have to predict the carbohydrates among given choices .

Q: 6. A chemist wants to electroplate gold (Au) onto a metal object. The object is put in a solution…

A: To electroplate a metal ion on another metal object, we need to place metal object on one electrode…

Q: Consider the mechanism. Step 1: A =B + C equilibrium Step 2: C +D → E slow Overall: A + D → B + E…

A: Given, the reaction mechanism: Step-1: A ⇌ B + C   (equilibrium) Step-2: C + D → E   (slow) Overall:…

Q: Give a clear handwritten answer...

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Q: A two-liter sample of mineral water was evaporated to a small volume, following which the potassium…

A:

Q: SN1 reactions are better performed in protic solvents. Explain why the researchers could not perform…

A: In SN1 reaction, alky halide/sulphonate react with a weak nucleophile. In first step of reaction…

Q: 100.0 mL flask contains 0.193 g of a volatile oxide of nitrogen.  The pressure in the flask is 760.…

A: We have to predict the molar mass of gas and gas also.

Q: Calculate the pH after the addition of 48.92 mL of KOH in the ti Answer: Check What is the pH of a…

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Q: 10.0 g sample of water at 20.0 °C is added to a 50.0 g sample of water at 70.0 °C. What is the final…

A: Mass of sample 1 = 10 g Initial temperature of sample 1 = 20.0 °C Mass of sample 2 = 50 g Initial…

Q: The reaction A(aq) + B(aq)  C(aq) + D(aq) has a ΔHrxn = -85 kJ/mol.   This reaction is…

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Q: The half‑equivalence point of a titration occurs half way to the equivalence point, where half of…

A:

Q: a) Draw the skeletal structure of 3-methoxy-4-methylpentanoic acid. b) Give the IUPAC name for the…

A: Cis - trans isomer - it is geometric isomer  Same priority group on same side - Cis Same priority…

Q: When 2,400 mg zinc is added to hydrochloric acid, 450 mL of hydrogen gas forms at a temperature of…

A: # According to the Law of conservation of mass " all atoms of different elements must be equal on…

Q: Name of Hypothetical Crystal Crystal Structure Radius, r, in Volume, V, in cm Length of one side of…

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

Q: NaOH (aq) + Ni(NO3)2 (aq) Complete ionic equation : Net ionic equation

A: NaOH + Ni(NO3)2

Q: The graph below shows how the solubilities of various substances respond to changes in temperature.…

A: Saturated solution is that solution which has maximum amount of salt dissolved in it.

Q: A certain microwave oven produce microwave with x wavelength at 2.50 mm, if 20.0 moles of photons…

A: Given :- no.of moles of photons = 20.0 mol  Wavelength of microwave = 2.50 mm  To calculate :-…

Q: Heat reored Temperature

A: Cooling curve:

Q: N-C) CI

A:

Q: What is the maximum amount of electrons that can be placed in the 7th shell? A 14 B 49 98 D 140…

A: Here, we have to find the maximum number of electrons that can be placed in the 7th shell.

Q: linear reaction-time graph represents a:       Group of answer choices   1.Zero-order reaction…

A: The correct answer about reaction kinetics is given below

Q: 31n 15 undo 32 H → P+? 15 Express your answer as a particle. ΑΣφ ? OA chemical reaction does not…

A: Identify ? mark of the given reaction ?

Q: Calculate the partial pressure of propane in a mixture that contains equal weights of propane (C3H8)…

A: The mole fraction of a component in the mixture is defined by the ratio of moles of that substance…

Q: 4. Which among the following refers to the value of internal energy. A 1025 J of heat energy is…

A: First law of thermodynamic says  Q = ΔE + W

Q: 3. Consider the electrophilic aromatic substitution reaction below. Draw three resonance structures…

A: Here we have to explain the cause major product formed in the bromination of anisole in the…

Q: 1. Describe how the solubility of solids (solid line) and gases (dashed line) is different. 2.…

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Q: Part B: Using the data below, determine the order with respect to A and B. Select ALL answers that…

A: In this question, we have to calculate reaction order with respect to A and B as well the value and…

Q: Sodium hydroxide reacts with sulphuric acid to produce Sodium sulphate and water. To complete the…

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Q: When 225 g of solution was evaporated to dryness 52.35 g of solute was recovered. What was the…

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Q: b) Calculate the stoichiometric air required

A: Given: Combustion reaction: C6H10O5 + 6O2 → 6CO2 + 5H2O

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. How long would it take a sample to decay…

A: We have to calculate the time taken.

Q: concentration

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Q: The rate law for the following reaction is: 2W + 3X + Y → Z [X] mol L-1 mol L-1 mol L-1 [Y] Rate of…

A: