Carbon-14 has a half life of 5740 years. A fossil once weighed 100g but now weighs 6.3g , How old is it?

Q: 5. Draw as many resonance structures as possible for the structure given below. Circle the resonance…

A: To the find out the more contributing or more stable resonance structure, the following points…

Q: As the strong reaction finishes, the concentration of conjugate base ion is 0.20 M. It then goes…

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Q: The density of tungsten is 19.25 g/mL. What is the volume of a block of tungsten with a mass of 41.6…

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Q: At a particular temperature, Kp = 0.390 for the reaction N₂O4(9) 2NO₂(9) A flask containing only…

A: For a chemical reaction N2O4 (g) ↔NO2(g)  the Kpis given to be 0.390.  We are required to calculate…

Q: JOTK assign Synthesis practice 1) Synthesize this compound only using only organic starting…

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: When the Hg2+ concentration is 2.00x10-4 M, the observed cell potential at 298K for an…

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Q: Which of the following transition metal ions has a d⁵ electron configuration? A) Fe³⁺ B) Co³⁺ C) V⁴⁺…

A: The electron configuration of transition metal ions can vary based on the number of electrons…

Q: The concentration of hydronium ions and hydroxide ions can vary widely in a solution, easily from 1…

A: The logarithm of a number is the power to which 10 must be raised to equal that number.

Q: At a particular temperature, the solubility of H2 in water is 0.0200 M when the partial pressure is…

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Q: Consider the following reaction at a high temperature. Br₂(g) = 2 Br (g) When 1.55 moles of Br₂ are…

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Q: In a hypothetical scenario, if a new element with atomic number Z = 137 were discovered, how would…

A: The discovery of a new element with atomic number 137 would present unique challenges in predicting…

Q: The pH of an acid solution is 5.03. Calculate the K for the monoprotic acid. The initial acid…

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Q: An engine cylinder contains 250 mL of gas at a pressure of 1.0 atm. As the engine runs, it…

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Q: Below is the Lewis structure of the bicarbonate :0: H:O:C:0: .. (HCO₂) ion. Count the number of…

A: we have to determine the number of lone pairs and bond pairs around the hydrogen atom

Q: Terpenes and lipids a. For the compound below show how its carbon skeleton can be divided into…

A: A question based on introduction to organic chemistry. An organic compound is given whose chiral…

Q: fictional compound AX2 has a molar mass of 152.01 g/mol and a Ksp of 5.6237e-10. It dissociates in…

A: The question is based on the concept of solubility product principle.  It that states that when a…

Q: You may have drawn an incorrect resonance structure OR a minor resonance contributor. Remember, in a…

A: If the Lewis structure of a molecule or ion cannot explain by a single structure then more than one…

Q: How many moles of Iron are required to react completely with 6.18 L of oxygen gas according to the…

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Q: What would the potential of a standard hydrogen electrode (S.H.E.) be under the following…

A: Given: Molar concentration of [H+] is 0.83 M  Pressure of H2  (PH2 ) is 3.1 atm  Temperature T is…

Q: The phosphorylation of glucose by hexokinase is an example of a(n) Isomerization O Free-radical…

A: Phosphorylation of glucose by hexokinase is a key initial step in glucose metabolism, which involves…

Q: 3. Condensation Reaction Mechanism The reaction below occurs when acetic anhydride reacts with the…

A: This is an example of Perkin type reaction

Q: Of the following reaction types, which is the type for the reaction below? 1.) Mixed Claisen…

A: A question based on reaction mechanisms. Two reactants are given whose products and the respective…

Q: Which of the following statements is correct in enzyme kinetics, if S represents the substrate? At…

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Q: Consider the following reaction, which takes place in a single elementary step: kf 2A + B A₂B k If…

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Q: 5. What is the expected product of this reaction? CH₂CH₂CH3 CH3 Br₂, hv ? CHBRCH₂CH3 CH₂CHBRCH3 (A)…

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Q: Give the systematic name for the following coordination compound or complex ion:…

A: Answer:- This question is answered by using the simple concept of naming the coordination compounds.

Q: Structure °°Y ¹H NMR Assignment Chemical Shift (ppm) Integration Splitting

A: There is one type of organic compound is given and we need to find its proton, as well as carbon…

Q: Calculate the concentrations of H*, HCO3, and CO3 in a 0.015 M H₂CO3 solution. Round your answer to…

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Q: What is the melting point of the substance modeled by this heating curve? Temp. (°C) 150 135 120 105…

A: To find the melting point of the following heating curve:

Q: Identify the oxidizing agent, element oxidized, reducing agent and element reduced from the…

A: Answer: Reducing agent: When a substance itself gets oxidized in a reaction and reduced others it is…

Q: Which of the following compounds will undergo nucluophilic aromatic substitution the fastest? NO₂…

A: Answer:- This question is answered by using the simple concept of chemical reactions of organic…

Q: Formic acid, HCOOH, occurs naturally in the venom of bee and ant stings. It was originally isolated…

A: Answer: Entropy is a measure of system's disorderliness or randomness while Gibbs free energy change…

Q: 4 Draw the product of 014 WIC OF the following aud/base reaction. NaOH (lequiv) Which of the…

A: When a acid reacts with base, it produce salt and water as a product.  When electron withdrawal…

Q: You are to synthesize 20 mmoles of the ester. So you will need 20 mmoles of each of the reagents.…

A: Purpose: To synthesize 20 mmol pentyl acetate from acetic acid and pentanol in the presence of…

Q: What is the pH of the sodium lactate solution? C3H5O3 + H₂O HC3H5O3 + OH- [C3H5O3] = 3.22 x 10-¹ M…

A: Detail

Q: Predict which would be more viscous (have greater viscosity): SHAMPOO ✓ O COFFEE What do you know…

A: This answer compares the viscosity of shampoo and coffee .T

Q: Using average bond enthalpies (linked above), estimate the enthalpy change for the following…

A: Bond Enthalpy also known as bond dissociation enthalpy describes the amount of energy stored in a…

Q: Pictured below is an energy band diagram for silicon. When doped into Si, Al is a(n) donor, acceptor…

A: A band will be the acceptor band if it accepts the electrons and the donor band if it donates the…

Q: An ice cube at 0°C with a mass of 10 g melts in water at 50°C. The temperature of the mixed water is…

A: Answer:- This question is answered by using the simple concept of calculation of mass using the…

Q: Oxalic acid (H₂C₂04) has the following structure: o• •o H-O—C—C—0—H с An oxalic acid solution…

A: A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule.…

Q: Could someone Please Help Me with this! No Plagirism Please! 3 ·         Provide at least 1…

A: A question based on equilibrium concept. An equilibrium reaction and few questions based on the…

Q: Draw the major Products & Et O 1. Ht, Br 2. Pyriding 3. Et, Culi DEE 1. NOEL /EtOH 2. Benzyl iodide…

A: There are total 3 reactions given. These reactions are made up of multiple steps. First reaction is…

Q: A buffer contains 0.15 mol of propionic acid ( CH₂COOH) and 0.24 mol of sodium propionate…

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Q: A cylinder of gas with a pressure of 8.0 atm is heated from 300. K to 600. K. What will the new…

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Q: Predict the product of this organic reaction under strongly oxidizing conditions: CH3 CH3-CH-CH₂-OH…

A: We have been given an organic reaction and we have been asked to predict the organic product of…

Q: The Mass spec of the compound has a molecular ion peak at m/z = 178 and a base peak at m/z = 178…

A: 5 subdivision questions based on IR spectroscopy and NMR spectroscopy of the organic compounds.…

Q: A laboratory investigation shows that a sample of uranium ore contains 7.92 mg of 238U (molar 92…

A: Mass of U92238 = 7.92 mg = 0.00792 g  Molar Mass of U92238 = 238.05079 g/mol  Half life of U92238 =…

Q: Answer: A 64. What is the specific rotation of pure (S)-carvone if a sample of (R)-carvone of 85% ee…

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Q: Based the ionic convention, what is the formal charge of the PPh3 ligand? +2 QUESTION 41 What is the…

A: Formula for calculating formal charge ( Based on ionic convention) :  Formal charge, qF = nv - nnb-…

Q: An unknown metal is found to have a density of 7.8748 g/mL and to crystallize in a body centered…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.