number of kcal

Q: Sulfur dioxide, a gas that plays a central role in the formation of acid rain is found in the exhaus...

A: Boyles law is defined as at constant temperature, pressure of gas is inversely proportional to volum...

Q: Find an expression for an ideal gas's (∂S/∂P)T. Then, given a sample containing 2.00 mol Ne (ideal g...

A: Given and what to find:-

Q: 3) 1,6-dimethyl-5-ethyl-2-heptene Expanded Structure Condensed Structure Line/Skeleton Structure 4) ...

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Q: Rank these compounds in order of increasing stability. (2E)-3-methylpent-2-ene, 3-methylpent-1-ene,...

A: The order of increasing stability of  (2E)-3-methyl-pent-2-ene, 3-methyl-pent-1-ene, 3-methylene -pe...

Q: Instrumental studies involve the calculation of the instruments' limit of detection (LOD) in additio...

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Q: 4) Complete the following reactions which form ethers (A and B) and cyclic ethers (C-E) as major pro...

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Q: A two-step synthesis of virstatin reactions are given. Give the yield and % yield of each synthesis....

A: Since you have asked a question with multiple sub-part, we will solve the yield and percent yield su...

Q: What are the positions of the C-1 and C-4 hydroxyl groups in the most stable chai conformation of al...

A: Altrose is a form of sugar and a chair form is a stable form of a six membered ring. It contains two...

Q: Solve the ff. 1. Calculate the molar solubility of lead iodide (a) in water and (b) in 0.200 M sodiu...

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Q: D-isomer rotates the plane of polarized light in a counter-clockwise rotation. True False

A: If the rotation of the plane of polarization is clockwise, to the right, then the rotation is called...

Q: piete lons. 3. What is the molality of 1.5 Kg solution with 213 g of LiCI?

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Q: Which type of isomerism exists between the pair of monosaccharides below? он он COH но- но HO. HO- H...

A: Given compounds are : Options are :  

Q: Wine goes bad soon after opening because the ethanol (CH,CH, OH) in it reacts with oxygen gas (0,) f...

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Q: Give the mechanism behind sodium azide inhibit peroxidase enzyme? If possible specific the functiona...

A: inhibition of peroxidase enzyme by sodium azide.

Q: The CH3COOH could have greater vapor pressure lowering than NaOH. true or false?

A:  lowering in vapour pressure is directly proportional to the van't Hoff factor(i).

Q: Which pair of compounds will not form a buffer in the solution ? NaCI, HCI НЗРО4, КН 2РО4 NH3, NH4CI...

A:                                   Answer  Acid or base with their conjugate base or acid makes a buf...

Q: In the relationship between frequency and wavelenght, attempt these a.What is the frequency of a li...

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Q: ) POCI; # valence electrons: Each atom w/ Octet: minimized Formal Charge: -) SO3 # valence electrons...

A: Formal charge is calculated as :-  Number of Valence electrons - 1/2 (number of bonded electrons) - ...

Q: 2Fe(OH)3 + 3(NH4)2SO4. Calculate the mass of (NH4)2SO4 produced when 3.67 g Fe(OH)3 Consider Fe2(SO4...

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Q: An environmental chemist analyzed the effluent (the released waste material) from an industrial proc...

A:   Volume of NaOH = 10.59 mL Concentration of NaOH = 0.1546 M Volume of effluent = 3.52 mL   Since be...

Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a certa...

A: Given that, an equilibrium reaction is N2g+3H2g⇔2NH3g. The equilibrium constant is Kp =1×10-6. Also,...

Q: Molarity of titrant (NaOH):  0.4550 M   Trial # First Second Third Fourth Initial buret readi...

A: Average volume of NaOH in the titration= 18.545 mL Molarity of NaOH = 0.4550 M Average number of mol...

Q: Lime, CaO, can be produced in two steps as shown in the equations below. If the percentage yield of ...

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Q: 13. 2.50 mol NOCI was placed in a 2.50 L reaction vessel at 400°C. After equilibrium was established...

A: First calculate concentration of NOCl   

Q: (i) Draw the structure of styrene. (ii) Markovnikov's rule. Outline the mechanism when styrene react...

A: Introduction In Markovnikov's addition reaction, the negative part of the attacking molecules (like ...

Q: Name: 1) Show the role of each ether solvent (diethyl ether, THF and crown ether) in reactions by ma...

A: Ethers  have nonbonding electron pairs on their oxygen atoms, so  they can form hydrogen bonds with ...

Q: How many joules of heat are required to raise the temperature of 200.0 g of water from 18.0°C to 42°...

A: When supply of heat of Q to any substance of mass m increases its temperature  by Δt, then        Q∝...

Q: An object O stands on the principal axis of a spherical refracting surface. The index of refraction ...

A: Answer :

Q: Problem 1: Show the fragmrentations fora-butanol radical carbocation and explain uhy thatis the most...

A: Mass spectra provides the information about molecular mass and the possible structural fragments. Mo...

Q: nanocar

A: In this question we have to choose correct option of the following statements with suitable reason.

Q: A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 6.6 g of ...

A: Given,  Mass of nitrogen gas produced during an experiment is 6.6 g.  The number of moles of nitroge...

Q: A 2.15 g2.15 g sample of an unknown gas at 59 ∘C59⁢ ∘C and 1.00 atm1.00 atm is stored in a 1.95 L1.9...

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Q: Compare the solubility of lead chromate in each of the following aqueous solutions: Clear All 0.10 M...

A: Answer: Solubility of a sparingly soluble salt in compound will be decided on the basis of its ionic...

Q: Consider a traditional Diels Alder reaction noting it's methodology and synthetic tactical. Then pro...

A: A question based on green chemistry that is to be accomplished.

Q: 40. is made by combining sulfuric acid and sodium dichromate. O Chromic (1) acid Chromic (11) acid O...

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question fo...

Q: 3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the ro...

A:

Q: A lawn fertilizer is rated as 4.40% nitrogen, meaning 4.40 g of N in 100g of fertilizer. The nitroge...

A: Answer: This is a question based on stoichiometric calculation where moles of nitrogen should be con...

Q: An anion has an electrophoretic mobility of -2.50 cm2 /kV - min on a CE system containing a 30 cm lo...

A: The apparent mobility can be calculated as: μB=Electrophoretic mobility+electroosmotic mobility

Q: The standard enthalpy change of combustion of graphite and diamond are −393.5 kJ mol−1 and −395.4 kJ...

A: (a)It is given  Enthalpy of combustion  C(graphite)+ O2  -------> CO2 .....(1)   ∆H= -393.5kJ/mol...

Q: 25.0 mL of a 0.356 M solution of NH4 + was mixed with 40.0 mL of 0.842 M potassium nitrate. What is ...

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Q: A chemist titrates 100.0 mL of a 0.3992 M ethylamine (C,H,NH,) solution with 0.6385 M HCl solution a...

A: Titration of weak base and strong acid results into salt of weak base and strong acid at equivalence...

Q: A solution contains 6.16x1o-3 M potassium chromate and 9.26×10-3 M ammonium phosphate. Solid calcium...

A: 1.)  A.) First we would check which precipitates can form. Then we would check the Ksp values of bot...

Q: Consider the following balanced reaction: Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2 H2O If 0.0424 mol Cuare m...

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Q: A titration is carried out for 25.00 mL of 0.100 M HCI (strong acid) with 0.100 M of a strong base N...

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Q: A peptide is found to have migration time of 8.31 min at an applied voltage of 10.0 kV and on a capi...

A: The migration velocity can be calculated as: v=Distance of detector from sample injectionmigration t...

Q: 4. Period 3, Group 2A 1. EC: 2. OD: 3. LDS: 4. QN: 5. Period 4, Group 5A 1. EC: 2. OD: 3. LDS: 4. QN...

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Q: Aflask_with a v0lume 0f3.16L c0ntains 8g 0f an unkn0wnGas at32oC and 1atm. What is the m0larmass (g/...

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Q: Question 16 OH но но OH OH What is the Fischer formula of this monosaccharide? H-C-OH HO-C-H HO-C-H ...

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Q: Question 5 Optical rotation of sugars can be determined by looking at position of -OH bound to the l...

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Q: The reaction 2A → A2 was experimentally determined to be second order with a rate constant, k, equal...

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