Write a brief account on the difference between nematic and smectic phases.

Q: For the reaction aA(aq) + bB(1) cC(g) + dD(aq) the equilibrium constant, K, can be written as Pc…

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Q: Get the concentration of the unknown solutions with a %T of 63 Given: S1 = 0.02 mg 76%T S2 = 0.04…

A: Given: S1 = 0.02 mg 76%T S2 = 0.04 mg 58%T S3 = 0.06 mg 45%T

Q: The first excited electronic energy level of the helium atom is 3.13 ✕ 10−18 J above the ground…

A: According to the question we have, The electronic energy of the first excited state of the Helium…

Q: Which of the following reaction is likely to occur with the highligthed group?     a…

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Q: Which of e tollowing has the lowest standard entropy ( (A) N₂O (B) NO (1)

A: As we know , entropy is a measure of randomness therefore entropy order for three states of matter…

Q: Correlate the photoelectron spectra of N2 and O2 with their respective molecular orbital diagrams.

A: The photoelectron spectra of nitrogen and oxygen are described with the help of MO diagram as…

Q: How many carbon atoms are in the parent chain?

A: Concept:  To name the compound as per the IUPAC rules we take the longest chain as the parent chain.…

Q: A solution of 2.60 g of solute dissolved in 25.0 mL of H2O at 25°C has a boiling point of 100.750°C.…

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Q: Calculate the extinction coeficcient where the concentration is in mg/ml and the path length is in…

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Q: A mixture of 50.00 grams propane, C3H8, and 100.00 grams oxygen, O₂, is combusted. C3H8 - 44.10…

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Q: Part A Wine is 13% alcohol by volume. How many milliliters of alcohol are in a 0.700-L bottle of…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Find the pH of a 0.381 M aqueous solution of hypobromous acid (HOBr), for which Ka = 2.1 * 10-⁹.…

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Q: Q10. Calculate the mean activity coefficient Y for Ba and SO, ions in a saturated solution of BaSO4.…

A: Ionic compound dissociate in to ion when dissolved in water.

Q: Q14. A plot of a Langmuir adsorption isotherm (C/q. vs 1/Q.) for an adsorption process, gives a…

A: To calculate the value of Qo , we would first use the linear form equation of Langmuir adsorption…

Q: QUESTION 1 An aqueous solution containing 72.9 g of an unknown substance in 611 g water was found to…

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Q: Two 20.0 g ice cubes at -14.0 °C are placed into 265 g of water at 25.0 °C. Assuming no energy is…

A: Answer: This question is based on the principle of conservation of energy which suggests that heat…

Q: At the temperature and pressure of point d, which statement below is true? 300 (Pc) Pressure (atm)…

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Q: What is the hybridization of the Catom in the following molecule? CICCI sp Р O sp² sp3

A: Definition of hybridization- Hybridization is the process in which two atomic orbital mixed to form…

Q: A can of soda weighs 344 grams and it contains 95 grams of sugar. Calculate the percentage of sugar…

A: Answer: Given data: Mass of sugar Msugar=95g Mass of can of soda M=344g

Q: a) Lysine is an essential amino acid. It is taken by some people as a nutritional supplement in the…

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Q: A reaction has a standard free-energy change of -10.40 kJ mol-¹ (-2.486 kcal mol-¹). Calculate the…

A: The free energy change of the reaction is = -10.40 kJ/mol The temperature of the reaction is = 25oC…

Q: 2. In biologically relevant molecules, carbon and the halogens don't have a charge. In contrast,…

A: Nitrogen atom has five valence electrons, when it form molecules it form 3 single bonds and have 1…

Q: Given the standard enthalpy changes for the following two reactions: <ΔΗ° question = (1) 2Zn(s) +…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: - HO

A: The parent chain is the longest carbon chain consisting of the functional group.

Q: Problem #5 A cylindrical container's pressure is 200,000 Pa; its temperature is 86 deg Fahrenheit;…

A: (1) Assuming the room air also contains only ideal gases,            PV=nRT              Where, P =…

Q: What is the Lewis Dot Structure and Formal Charge of the Oxygen atoms in these substances? (CH3)2O…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: of (C) Freezing of a liquid 6) Which of the following systems has a negative sign of AS (A) H₂O →…

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Q: Using the generic molecular orbital diagram, account for the experimental and predicted behaviors of…

A: Molecular orbital diagrams show molecular orbital (MO) energy levels in the centre, surrounded by…

Q: Tantalum (Ta) and boron (B) form two binary compounds with the following compositions: Compound Mass…

A: As ratio of Ta in compound 1 and 2 per gram of B is 8 : 3 Compound 1 contain 8 Ta and compound 2…

Q: NAME THE FOLLOWING COMPOUND NaOH KMNO4

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Q: Which statement about the three fundamental particles is false? O a. The charge of a proton is equal…

A: Electrons, protons and neutrons are considered as fundamental partials of atom

Q: What if the question asked for 96% instead of 62%? How would that be solved?

A: Answer: A solution containing weak acid and its conjugate base will act as a buffer only when ratio…

Q: A 20.0 g cube has one side equal to 1.50cm. What is its density?

A: Mass of cube = 20.0 g Volume cube = (1.50)3 cm3

Q: Part b. The total pressure of a gas mixture is 847mmHg. Ig the PC02 = 47mmHg and the PH20 = 47mmHg,…

A: Part b.Total pressure of a gas mixture is given by 847 mm Hg . PCO2 = 47 mm Hg and PH2O = 47 mm Hg…

Q: What is the oxidation half reaction of the chemical reaction shown below? Cu (s) + 2 AgNO3(aq) → 2…

A: In an oxidation half reaction, a substance is shown to loose electrons and get positively charged.

Q: Question 9 How many moles of K* ions are present in 343 mL of a 1.27 M solution of K3PO4 (aq) ?…

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Q: A student experimentally determines the density of an unknown metal to be 2.78 g/mL, 8.59 g/mL, 6.00…

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Q: Match the amino acid description with their 1-letter code Amide-containing amino acid Optically…

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Q: 16. Give the major product of mononitration of the compound. 17. -OCH3 Give the product of the…

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Q: Give the Structures that 3° amine a 1 halide only one chiral Carbon with formula CHIH14 Br No and…

A: We can define the structure with the desired criteria by closely observing the given molecular…

Q: A solution contains 1.3 M (mol/L) of CaSO4 (aq) and has an overall electrical conductivity (EC) of…

A: The activity of Ca2+ in this solution is 0.005. The detailed Solution is given in next step

Q: Use the molecular orbitals that mix to explain how hybrid molecular orbitals are formed

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Q: Differentiate the metals and nonmetals based on their: Intramolecular Bond, Intermolecular Bond, and…

A: Metals have loosely bonded valence electrons and can easily donate elctrons to other atoms .They…

Q: Round 0.00971659 to three significant figures.

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Q: Assuming that the partial pressure due to O₂ in the Earth's atmosphere is 0.21 atm, estimate the…

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Q: Ph N mechanism - + MON NO₂ Liorane softes men и и Ph NO₂ } TN- NON Ph и и HNW- N=N

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Q: A 0.500 g metal occupies a volume of 25.0cm³. What is its density? a. 0.020 g/cm³ b. 12.5 g/cm³ c.…

A: According to Q&amp;A guidelines of Bartleby, we are supposed to answer only the first 3 multiple…

Q: Q2. Define () the following (in English words). 1. Second law of thermodynamics: 2. Intermolecular…

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Q: a Draw the missing resonance structure on the right to account for the curved arrows on the left…

A: In this question we have to tell the resonance structure of the given structure.

Q: What causes the alkalosis to be corrected by this treatment?

A: Hyperventilation is a condition in which we breathe too fast. When the balance between inhaling…