CI NH2 CN

Q: What mass of natural gas (CH,) must burn to emit 263 kJ of heat? CH4 (9) + 202 (9) → CO2 (g) + 2H2O(...

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Q: Isopropyl alcohol is a liquid with a density of 0.785 g/cm^3. How much volume would be taken up by 5...

A: Given, Density of isopropyl alcohol = 0.785 g/cm3 Mass of isopropyl alcohol = 50 g Volume of isoprop...

Q: Question I. Electrical conduction is a property of ionic solutions and the conductance of such elect...

A: Answer) in the given question we have to calculate cell constant. Cell constant is the ratio of dist...

Q: atom initially in its ground state h-, absoks a photon and ends absods a photon and ends up an etcit...

A: 1) initial position of electron , ni = 1 Final position of electron nf = 3

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

A: An ionic bond is formed by complete transfer of electrons whereas covalent bond is formed by sharing...

Q: 6. (a) What is ther difference between Environmental Science and Green Chemistry? (b) How can a chem...

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Q: Technetium-99 which has a half life of 6 hours is a useful isotope in diagnostic tests. If a patient...

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Q: A solution is made by dissolving 0.741 mol of nonelectrolyte solute in 857 g of benzene. Calculate t...

A: Number of moles of non - electrolyte solute  = 0.741 mol Mass of Benzene  = 857 g  

Q: 13. The alcohol above would be classified as a(n) O phenol O alkoxy alcohol O primary alcohol O seco...

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Q: list some reasons why your computer density values did not correspond to the value obtained from the...

A: Error is defined as the difference between the true result and the measured result. There are variou...

Q: what is the structure and jvalues? (c10H14O).

A: As the molecular formula of this compound is C10H14O, the Hydrogen Deficiency Index (HDI)/ Double Bo...

Q: grams

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Q: 1. 56 g of iron (III) sulfate reacts with 24 g of lead (IV) nitrate to form iron (III) nitrate and l...

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Q: Determine the freezing point of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (formula weight...

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Q: Plane Indices Diffraction Angle |(110) 20.1° (200) 28.5° (211) 35.1° (220) 40.8° (a) Determine the i...

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Q: A 50.0-mL sample of 0.400 M copper(II) sulfate solution at 23.35oC is mixed with 50.0 mL of 0.600 M ...

A: We have 50ml of 0.4M CuSO4 50ml of 0.6M NaOH Ti=initial temperature = 23.35°C Tf=final temperature =...

Q: L→ a+B 2- The scheme symbol equations is True O False

A: Ans) False

Q: Write equations for the formation of these compounds -) from the elements: a. Strontium Hydride b. R...

A: While writing the formation equation from the respective elements, we write the elements in their st...

Q: 2. Ammonia is produced by the Haber process, in which nitrogen and hydrogen are reacted directly usi...

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Q: 8. SI unit of enthalpy is a) Joule/kgK b) Joule/K c) Joule/kg d) K/kg

A: Given that : We have to identify the SI unit of enthalpy : a) Joule/kg.K b) Joule/K c) Joule/kg d) K...

Q: The following two Lewis structures may be drawn for a certain ion with a charge of -1. First, show t...

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Q: weight

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Q: Which of the following would be the most water soluble of the group? O CH3-0-CH2CH3 O CH3CH2CH2-OH O...

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Q: 4. Give the formula and name of the compound formed by Strontium with a. Nitrogen b. Bromine C. wate...

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Q: 11. CH;CHCH3 CH2-CH2-OH What is the IUPAC name for the above? O 1-hydroxy-3-methylbutane O 2-methylb...

A: IUPAC nomenclature is used for naming the organic compounds as recommended by international union of...

Q: The decomposition of hydrogen iodide on finely divided gold at 150°C is zero order with respect to H...

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Q: On a separate sheet of paper, draw a triglyceride (glycerol + 3 fatty acids) with formula C5H10O2mad...

A: Given the formula of the fatty acid is C5H10O2. Degree of unsaturation of C5H10O2 is: Degree of unsa...

Q: OMe OMe H2SO4 2 equiv. OMe OMe

A: Given reaction is : Draw an arrow pushing mechanism and explain why less than two substitutions are...

Q: Write the equilibrium expression for the following reaction, and then answer the following questions

A:   For a general equilibrium reaction  a A  + b B   <-->  c C  +  d D  equilibirum constant exp...

Q: How does the cell voltage change when [t'=7] is decreased by a factor of 4 b. How does the cell volt...

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Q: How many grams of glucose are needed to prepare 500 mL of a 2.0% (m/v) glucose solution?

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Q: How- Galcalale the paner densty for (1) Plane of Bcc crystep structure.

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Q: 3. Part I: For each of the following aqueous reactions, identify the acid, the base, the conjugate b...

A: #3: Part-1: A Bronsted-Lowry acid is a substance that is capable of donating a proton(H+), and a Bro...

Q: How do diffusion and effusion differ? How are they similar?

A: Introduction :  Diffusion can be defined as the tendency of the molecules of a given substance to mo...

Q: Calculate the molar mass of citric acid (C6H8O6)

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Q: What is the molarity of a 0.50 L solution containing 9.0 g NaCl in water?     0.31 M 114 M 0.005 M  ...

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the ...

Q: (d) Compare the greenliness between the. following two schemes : Ca(NO3)2 acetic acid Scheme-I ÑO2 O...

A: Scheme-I is the green synthesis pathway and Scheme-II is the Conventional way for the synthesis of n...

Q: Eamplel. Calculate the pH value of buffer solution which prepare f acetic acid and conjugated salt i...

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Q: 1. Balance the following reaction under basic conditions using any method of your choice. I" Se0f (a...

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Q: 3. Determine the Rydberg constant from the data. Since for n, = 2: 1 1 = R H. 1 Equation 1 n? n 1 RH...

A: #3: First, we have to convert the respective wavelengths(λ) from nm to m. Then we have to find the v...

Q: A. Calculate the number of moles for B. Calculate the mass of the each given. 1.) 45g of table sugar...

A: Given: Mass of sugar = 45 g Moles of nitrogen gas = 2.7 moles Standard data: The molar mass of su...

Q: 5. For which set of crystallographic planes will a first-order diffraction peak occur at a diffracti...

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Q: Two substances, A and B, initially at different temperatures, come into contact and reach thermal eq...

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Q: What are the three allotropic modifications of the element carbon

A: Here we have to mention three allotropic modifications of the element carbon-

Q: Get Informed (Explain) The collective counting words above (i.e. pair, tray, ream and case) are most...

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Q: Given enzyme catalyzed reaction k1= 4x106 M-1s-1, k -1=6x104 s-1, k2=2.0x103s-1. Determine if the en...

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Q: Which of the following is the solution concentration expressed in terms of molality? 10 g of solute ...

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Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in ...

A: Cation Co2+ valency = 2+  name cobalt cation Anion O2- valency = 2- name oxide anion  for writing th...

Q: 1. Balance the following reactions in both acidic and basic media, identify the oxidation and reduct...

A: Given Reaction:- I- + MnO4-   ------> I2 + MnO2  In acidic medium permagnate ion goes 5e- exchang...

Q: Write the empirical formula of at least four binary ionic compounds that could be formed from the fo...

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Vitamins and Coenzymes

A class of organic compounds needed in the human body for normal activities is known as vitamins. They are characterized into two parts depending upon their solubility in water. They can act as coenzymes, cofactors, or prosthetic groups for enzymes.