What is the atomic number for an element whose m number is 138, which contains 81 neutrons per atom

Q: Draw the products resulting from addition of a Grignard reagent to an aldehyde. se a dash or wedge…

A: It is based on the concept of Grignard reaction.Here we are required to find the product of the…

Q: 1) E Which of the following molecules contain a conjugated it system? NH₂ A) I B) II C) III D) I and…

A: A system of connected p orbitals with delocalised pi electrons with the molecule.

Q: Which solution would you use to precipitate Mg2+ from an aqueous solution of MgCl2? KNO3 H3PO4 H2SO4…

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Q: Iron has the following electronic configuration 1s22s²2p63s²3p64s²3d6. What would be the values for…

A: We have been asked to determine value of principal quantum number and angular momentum quantum…

Q: NMO 1. Osu, 2. NaHSO3, H₂0

A: OsO4 is called Osmium tetraoxide It is usefull reagent for dihydroxyation of an alkene It always…

Q: the wheels of a bicycle are 725mm in diameter. How many revolutions would these wheels make during…

A: The objective of this question is to find out how many revolutions the wheels of a bicycle would…

Q: 13. I-Z 14. + 15. I-Z 16. |

A: For given compounds determine classification of compounds is aromatic, anti aromatic or non…

Q: Say whether a given substance is a strong, weak, or nonelectrolyte. Can you provide an example and…

A: Conductance: The ability of a substance to conduct electricity is called conductance. The flow of…

Q: Determine which of these best describes the given structure: A. Aromatic  B. Antiaromatic  C.…

A: AROMATICITY : THE HUCKEL RULEIt is clear that benzene is an especially stable compound. A number of…

Q: What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point…

A: The objective of the question is to find the freezing point of an aqueous solution of a nonvolatile…

Q: Calculate the Molarity of a solution, given appropriate data; calculate the molality of a solution,…

A: Lets consider,in 1 L of water, 58.44 g of salt (NaCl) is dissolved, then find the molarity of NaCl…

Q: A 2.45 g mixture of BaCl2 and Ba(NO3)2 is dissolved in water.  Excess AgNO3 is added and all of the…

A: The balanced chemical equation for the precipitation is The stoichiometric relation is

Q: 0.3414 grams of sample (crushed aspirin tablet) was weighed and dissolved in 25 mL ethanol. This…

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Q: A chemist performed a reaction of 2-methylpent-2-ene with HBr in diethyl ether. However, after…

A: The objective of this question is to determine the result of the given reaction.

Q: Combustion of hydrocarbons such as propane (C₂H₂) produces carbon dioxide, a "greenhouse gas."…

A: Givenmass of propane = 0.370 kgtemperature = 10°Cpressure = 1 atm

Q: Draw the correct structure of the alcohol starting material that would give the following oxidized…

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

Q: What is the minimum mass of oxygen required to react completely with 4.90 g of C7H6O3? The…

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Q: The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is its vapor pressure at 63.5 °C? (AHvap…

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Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

A: Sodamide is a strong base, which abstracts beta-hydrogen to form corresponding alkene. The given…

Q: Pre-Lab Question 7 Perform the following calculation: g C x cm³ What is the answer to the…

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Q: How to identify whether ions are present and how to identify polar molecules

A: Polar molecule: If the molecule consisting atoms has significant difference of electronegativity,…

Q: Which of the following correctly depicts the mechanistic first step in the addition of HBr to…

A: We have to identify the correct first step for the mechanism of addition of HBr to 2-methylpropene

Q: What is the minimum mass of galena (PbS), a lead ore, from which 90.0 g of pure lead could be…

A: mass of lead = 90.0 gatomic mass of lead = 207.2 g/molmolar mass of PbS = 239.26 g/mol

Q: A 1.95 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

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Q: Predict the major organic product of the following reaction and draw its structure in the space…

A: The reaction of an acid chloride with isopropoxide involves nucleophilic acyl substitution, where…

Q: Give the IUPAC name for each compound.

A: The given compound is a hydrocarbon, alkane. The IUPAC name of an alkane can be written on the basis…

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. 1. KMnO4, H₂O, heat 2. H*…

A: In the given question, the reactants and reagents of an organic reaction are given and it has been…

Q: A ¹H NMR spectrum of the molecule shown below was prepared in deuterated acetone. D₂O was added to…

A: The 1H-NMR spectrum of a molecule is an analytical technique that involves the analysis of the…

Q: A solution is made by dissolving 4.35 g glucose (C6H₁2O6) in 25.0 mL of water at 25 °C. Calculate…

A: The mass of the solute (glucose) is 4.35 g.The volume of the solvent (water) is 25.0 mL.The density…

Q: 2) Considered the following molecules: Draw the valence electron configuration of each atom…

A: Given two compounds and to find Lewis structure, valence electronic configuration, and hybridization…

Q: Predict the major organic products and propose mechanisms of the following reactions. d. e. C(CH3)3…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: - Write the IUPAC name of the following molecules on the line provided. seç xx

A: The longest possible continuous chain is selected as parent carbon chain.The functional group is…

Q: For the following reaction, 115 grams of silver nitrate are allowed to react with 25.8 grams of…

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Q: H3C H₂ Predict the ¹°C NMR chemical shift of the circled carbon in the structure below. 010 ZI CH3…

A: In a carbon-13 nuclear magnetic resonance (^13C NMR) spectrum, amide carbonyl carbons typically…

Q: 11. Calculate the mass of salt present in 1m³ of seawater with a density of 1,030 kgm ³. (a) 300.0…

A: Multiplication of the volume of seawater and its density gives the mass of seawater.

Q: Based on the assigned substituent ranking, what is the configuration of the stereogenic center?…

A: The configuration of the stereogenic centre or chiral centre is defined on the basis of  present…

Q: Naproxen has the chemical formula, C14H1403. How many moles of carbon are in 72.41grams of Naproxen?…

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Q: Convert 55.5 \deg F to \deg C

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Q: 4. Show how you can carry out the synthetic conversions indicated in an efficient manner. Find as…

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

Q: Q8-Draw the alternative chair conformations for the following cyclohexane derivatives. Indicate by a…

A: To draw different conformations of the given cyclohexane derivatives and determine their relative…

Q: Name this molecule using IUPAC.

A:

Q: [References] Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that…

A: To find out starting Grignard reagent and aldehyde to make the given alcohol

Q: Your dad gifted you his old rock collection. If 50.4% of the rocks have a mass of 15 g, 13% are 12…

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Q: A solution was made by dissolving 10.00 g of potassium sulfate in 250.0 mL of water. What is the…

A: Note: assuming volume of solution is equal to volume of waterGiven:Mass of K2SO4 = 10.0 gVolume of…

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts.. OH OH Na2Cr2O7 H₂O,…

A: The reagent used here is Na2Cr2O7 which is a strong oxidising agent. It oxidises the primary alcohol…

Q: Calculate the value of Kp for the equation C(s) + CO₂ (g) — 2 CO(g) given that at a certain…

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Q: Give the IUPAC name for each compound. Part 1 of 2 Name: Part 2 of 2 x Ś

A: Nomenclature rules for the cycloalkane: 1) Identify the longest continuous carbon ring.2) Identify…

Q: Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C;…

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Q: Explaining Vapor Pressure in Terms of IMFs Given the shown structural formulas for these four…

A: Answer:Vapor pressure of a substance is inversely proportional to the strength of intermolecular…

Q: Which statement is FALSE? Receptors include binding pockets whose shapes complement those of…

A: The statement "Receptors include binding pockets whose shapes complement those of ligands" is TRUE.…

Group 14 Elements

The following elements come under group 14 of the periodic table.