Barium-141 is a beta emitter. What is the half-life if a 16.0 g sample of the nuclide decays to 0.50 g in 90 minutes? i minutes/half-life

Q: 9F. Sketch the pi orbital overlap in the following molecules. (a) [OCN]- (one sketch each for 3…

A: To draw the pi-orbital overlap of the given molecules:a) OCN-b) CH2=CH-CH=CH2

Q: A 147. ml. solution was made by mixing 98.0 mL of cyclohexane, which has a density of 0.78 g/ml.,…

A: We can determine volume percent of a substance in solution is given shown as below  -

Q: What absorbance value corresponds to 44.7% T? A = 0.357 A 0.0126 M solution of a certain analyte…

A: Information of question

Q: 3. Lewis structures of two chemical species are shown below. For each, give (i) the formal charge on…

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Q: Be sure to answer all parts. Write balanced nuclear equations for the following reactions and…

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Q: 8) Identify the expected major product(s) for the following reaction. Ill A) I Br រ + En I HBr 40 °C…

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Q: a. b O +H. + H. O CI Pd(OAc)2 PPH3, NEt3 Pd(OAc)2 PPH3, NEt3

A: Given are 2 reactions between aryl halide and vinyl derivative in the presence of palladium and…

Q: If 25.0 mL of a 6.00 M HCI solution is diluted to 2.00 L, what is the molarity of the new solution?

A: Q. Given V1=25 ml = 0.025 L ( Volume of HCl before dilution)M1=6 M (Molarity of HCl before…

Q: 5. Using reactions from Chapter 7, provide the reagents needed to convert the starting material into…

A: Given is organic reaction. in which alcohol is converted into an ester.We can prepare it by various…

Q: What is the multiplicity of the methylene hydrogens indicated in the proton NMR of the following…

A: Formula for multiplicity in HNMR:Multiplicity  = n+1 n = adjacent H-atoms of the indicated H-atoms

Q: 1. Predict the products for each of the following Diels-Alder reactions, including stereochemistry }…

A: Organic Reactions are given.We have to find out the products formed in these reactions.

Q: The following endothermic reaction is most likely to be which of these? P406(s)→→→→ P4(s) + 3 O₂(g)…

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Q: 7 об (8) Н C он GH H30+ Н NaOH, H2O 25°C NQOH catalytic amount

A: The question is based on organic reactions.We need to identify the product and explain its…

Q: Predict the product of this organic reaction under mildly oxidizing conditions: OH CH₂-C-CH₂ CH3 P +…

A: The primary alcohols get oxidized to form aldehydes which are further oxidized to form carboxylic…

Q: Assign the absolute configuration of the chiral center as R or S. OH OR OS O Rand Sare both possible…

A: Assign R or S configuration:

Q: Imagine the following substitution reaction is at equilibrium. How would the addition of Cl cause…

A: Answer:The law of mass action states that rate of reaction is directly proportional to the…

Q: Predict the product for these reactions.

A: The reactants and reagents of the reactions are given.We have to draw the products of these…

Q: 9.90. Figure P9.90 shows the skeletal structure of the antifungal compound capillin. Are there…

A: Skeleton structure of capillin

Q: Is this a reasonable suggestion? Match the words in the left column to the appropriate blanks in the…

A: The energies of nuclear states are large relative to ordinary temperatures.ExplanationThe energies…

Q: Draw the major product of this elimination. Consider regiochemistry and stereochemistry. Ignore…

A: Alkyl halide gives an elimination reaction by reacting with a strong base. E2 reaction involves a…

Q: 1. BH3/THF 2. H₂O₂/OH™

A: In the hydroboration-oxidation of alkynes, the addition of water to alkynes takes place according to…

Q: Special Groups Some alkyl groups have interesting arrangements and are given special names to…

A: The given alkyl groups are shown below.We have to give them specific names.

Q: 3. Which of these two reactions would go better? Why? Br CH3CCH3 CH3 CH₂CH₂CH₂Br NaN3 NaN3 N3 ->…

A: The question is based on nucleophilic substitution reactions. We need to identify the better…

Q: A) Por ~0% -B) в) хов хотоо ха гото dru H-Bri Ž a.) Given our discussions of this mechanism express…

A: The question is based on the concept of chemical reactions.We need to draw energy level diagram for…

Q: A 50 ml sample taken from a vinegar sample was diluted to 500 ml with distilled water. The 25.0 mL…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. H3O+ Q

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Q: NO₂ OMe CICH₂COOEt t-BuOK P

A: In the given reaction two reagents are being used to give the product.First, the electrophilic…

Q: Discuss this ¹H nmr spectrum from the point of view of the number of eaks and the relative…

A: CD2H2 refers to dichloroacetylene, a molecule composed of one carbon (C) atom, two deuterium (D)…

Q: Are the monosaccharides below enantiomers? If not, edit either molecule so that they are…

A: The spatial isomers are stereoisomers that have the same molecular formula but differ in the…

Q: + Li + ? + ? 0·0 ? + ? OH + Na : 0 H ..

A: First Grignard reagent attack to the carbonyl carbon then ether group release and final product is…

Q: Draw a flowchart showcasing the purification step done for the reaction under basic conditions (the…

A: Purification is the process of removing impurities, contaminants, or unwanted elements from a…

Q: Consider the hypothetical thermochemical equation 3A+B 2C for which AH = 84.3 kJ/mol. If you have…

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Q: Consider the coordination compound [Ni(OH₂)6] Br4. If you find, experimentally, that the compound is…

A: Strong field ligands are that produce large splittings between the d orbitals and form low spin…

Q: Draw the Fischer projection of an L-aldohexose. Click and drag to start drawing a structure.

A: This problem is based on Biomolecules. Here, we have to draw the Fischer projection for any…

Q: Which of the following C5H8 compounds best fits the proton NMR spectrum shown below? (The numbers…

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Q: CF 3- Celecoxib -SO₂NH2 Do the following synthesis reactions. ŞO₂NH2 NHNH2 A +

A: Information of question

Q: CI Br Br + KOH + KOtBu

A: In the E2 elimination reaction, proton( anti to leaving group) abstraction and leaving group leave…

Q: 2. Show the reagent(s) necessary to carry out this reaction. NM₂ NH₂

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Q: Predict the reagent(s) needed to produce this regiochemistry in this elimination reaction. OH A B с…

A: An E2 elimination reaction shows the simultaneous deprotonation by a base and the removal of a…

Q: 1. Using the data in the table, determine the rate law for the following reaction: 3D+2E A + 2B+ 3C…

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Q: XI. B -EVRT Arrhenius Equation K=Ae a.) If tested it is found "A" has a smaller rate constant but…

A: The objective of the question is to give the reason for the smaller activation energy for the…

Q: In a given reaction, the rate may be expressed Δ[Α] At as either rate= . OA is a product. B is a…

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Q: + لاده (8) OH GH ہے H30+ non NaOM, MO H 25°C NaOH catalytic amount

A: The question is based on organic reactions.We need to identify the product and explain its…

Q: 2. Identify the most acidic H. Draw the conjugate base and Explain Thoroughly. HO OH

A: Acidity is defined as the ability of a molecule to release protons.If a compound easily donates…

Q: What is AH (in kJ/mol) for a reaction where the activation energy is 250 kJ/mol while the activation…

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Q: 12.12 c) The following reactions generate more than one product. Suggest changes that could make…

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

Q: 1. HgCl₂, H₂O 2. NaBH4

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Q: How many kJ of heat is required to produce 32 kg of steam 88% dry at 3000 kPa from feedwater at 90C?…

A: To calculate the heat required to produce steam, you can use the following formula:Q is the heat…

Q: Make the following changes on the molecule in the drawing area below: 1. First, make sure this is…

A: Howarth projection is one of the ways of representation of monosaccharides in a three-dimensional…

Q: 1-pentanol 'H' 180 °C Predict the organic product when 1-pentanol is heated in the presence of a…

A: Alcohols when heated in presence of strong acid form alkenes.

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.