Bromine-88 is radioactive and has a half life of 16.3 seconds. How much of a 6.00 mg sample would be left after 35.6 seconds? Round your answer to 2 significant digits. Also, be sure your answer has a unit symbol.

Q: A sample of gas originally at 25.0oC and 700.0 mm Hg of pressure occupies 20.0 liters. What will be…

A: Answer: In this question we have to find out the new pressure of given gas sample when it has been…

Q: Which species is the oxidizing agent in the following reaction? 2XO₂ + 2OH- + 3Na,ZO, 2XO + 3Na₂ZO,…

A: Oxidizing agent: The chemical species which oxidize the other chemical species by accepting…

Q: Choose four chair conformers corresponding to the two chair conformers for each of the two…

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Q: what happens when equal volumes of  2 x10^-4 M aqueous solutions of calcium nitrate Ca(NO3)2 and…

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Q: For many purposes we can treat propane (C3H8) as an ideal gas at temperatures above its boiling…

A: Given: The initial pressure = 4.2 atm The initial temperature = -22.0 oC The final temperature =…

Q: 13 Before you answer this question, please read the following important principle: If a carbocation…

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Q: Which compound below is least reactive towards electrophilic aromatic substitution reactions?

A: Electrophilic aromatic substitution reaction: Electrophilic aromatic substitution reactions are the…

Q: a student mixes 20.0 g of salt in 100.0 g of water at 20°C and obtains a homogenous solution. which…

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Q: 9 Give the organic product: A. C. CH₂CH₂CH₂-C CH -NH₂ 1) NaNH, 2) CH₂CH₂I B. D.

A: When terminal alkyne reacts with a base it forms anion which on reaction with alkyl halide gives…

Q: Q8. Fill in the boxes with the missing reagents lote: the "I" in the middle top compound is iodine.…

A: Alkanes are less reactive in nature therefore they mainly gives substitution reaction. Alkyl halide…

Q: N-ethyl-6-methyl-5-propyl-3-nonanamine 4-butyl-1,2-dimethylcyclohexanol

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Q: Which of the following is/are more soluble in this solvent than in water? BaCl2

A: Water is a polar solvent and it can dissolve an ionic or polar covalent compound.

Q: Find the mole of gas present at a temperature of 39ﾟC volume of 10 7.5 l any pressure of 6 79 12

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Q: Aside from Zn2+ complexes like [Zn(OH)4]2-, Sc3+ complexes like [Sc(NH3)6]3+ and [ScCl6]3- are also…

A: The complex contains upaired d electron .The colour of the complex compound is due to d−d electronic…

Q: a linear plot of [reactant] versus time an exponential decay of [reactant] versus time a linear plot…

A: Zero order reaction = Those chemical reaction in which rate of reaction independent of concentration…

Q: 36 L 37 38 A Moving to another question will save this response. Question 9 Classify the reaction…

A: A question based on introduction to organic chemistry. Two multiple choice questions are prescribed…

Q: 13 Before you answer this question, please read the following important principle: If a carbocation…

A: Rate of alkene with hydrogen halide depends upon stability of carbocation as this reaction undergo…

Q: Noting that I (iodine) is less electronegative than Br, in the additic 1-Br to alkenes, the iodine…

A: Nucleophiles are nucleus loving species and electrophiles are electron loving species. Alternatively…

Q: Vacuum-forming is a term that is sometimes used to describe the polymer conversion process known as…

A: The correct answer is C) Thermo-Forming. Vacuum-forming is a term that is sometimes used to describe…

Q: Which atom below is sp2 hybridized?

A: During orbital hybridization, the mixing of atomic orbitals takes place to form new orbitals known…

Q: Н 0 H

A: As an analgesic and antitussive, hydrocodone is an opioid agonist. A synthetic opioid derived from…

Q: the decomposition of 2NOCl(g) --> 2NO(g) + Cl2(g). the initial concentration of the reactant is…

A: First we have to find that the reaction is going with which order then applying the rate constant…

Q: 15 Give the organic product: A. C. 03 (8) Zn/H₂O B. D. ? он OH indi & он он

A: The given reaction is actually an ozonolysis reaction where double bonded Carbon atoms are oxidised…

Q: The compound below has how many (and what type) of 1H NMR signals? 3 Signals (1 triplet, 1 quartet,…

A: Signals are splitted as n+1, where n is the number of H atoms attached to the neighbouring Carbon…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 309. kJ during a…

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Q: 3. A non-flow system contains 1 pound-mass of Ideal gas (cp=0.24; cv = 0.17, both in BTU/lb- R) the…

A: The given data: mass of the ideal gas = 1 pound, that is 1 lbm Cp = 0.24 Btu/lbm.R Cv = 0.17…

Q: 9 Give the organic product: A. C. CH₂CH₂CH₂ C CH -NH₂ 1) NaNH, 2) CH₂CH₂I B. D.

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Q: I got a yield of 30% for a lab where we converted 1-butanol to 1-bromobutane using HBr and sulfuric…

A: The percent yield of a reaction can be obtained by dividing actual yield by theoretical yield and…

Q: 2. When the alkyne below was treated with a base and an alkyl halide the desired product was not…

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Q: Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: Q1 (Conformation & Structure) a) When the molecule below is placed in the most stable chair…

A: Given that, a compound is We have to tell how many hydrogens are at axial position on the most…

Q: If you measured the rotation of a compound at -16.56° in a cell that is 0.98 dm in length. And your…

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Q: How many peptide bonds are there in this molecule?

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Q: 2. Which answer choice correctly lists the molecular geometry of the molecules (or ions) of the…

A: For L, we take Nitrogren from 5A group element. Thus it form NH2 (NEGATIVE). Geometry of…

Q: QUESTION 10 Match the description to the bond type or theory. Head-to-Head Overlap Side-to-Side…

A: Sigma bond head to head overlap Pi bond side overlap

Q: ОН ОН ОН о -H2O

A: The dehydration of  the given compound takes place with following products: Out of the above…

Q: What is the likely product of the reaction shown? OH OH 1. excess LiAIH4 2. H2O OH OH OH OH OH Ш OH

A: Lithium Aluminum Hydride (LAH): LiAlH4 is a powerful and  nonselective hydride-transfer reagent. It…

Q: why is the boiling point of Br2 higher than that of Cl2?

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Q: 10. Write out the mechanism (intermediate/transition state) for this reaction. Indicate…

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Q: The radioisotope strontium-90 has a half-life of 38.1 years. If a sample contains 40 mg of Sr- 90,…

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Q: (7.244 g +0.064 g )/(14.75 mL -8.5335 mL ) with approproate sig figs

A: The given question is 7.244 g + 0.064 g14.75 mL-8.5335 mL

Q: 19 Give the IUPAC name for the following compound:

A: According to IUPAC nomenclature for naming a compound :    Select the longest continuous chain of…

Q: Question 2 Give the starting material. (a) (b) O a (c) (d) 1. Hg(OAc)₂, H₂O 2. NaBH4 OH MacBook Air

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Q: 8 What is the organic product? A. I B. + HI C. D. ?

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Q: What volume of 0.15 M H3PO4(aq) is needed to completely titrate 75.0 mL of 0.25 M Na2CO3?

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Q: 5 What is the organic product? А. OH OH CH₂ CH₂ B. (1) HgOAc2 + H2O (2) NaBH4 OH CH3 с. ? он CH₂ D.…

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Q: 20 Identify the alkene which would give the following products upon ozonolysis followed by reduction…

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Q: Given at standard conditions: • A galvanic cell with Cr₂O72-/Cr³+ (Eºred = +1.33 V) and BrO3-/ Br₂…

A: Answer: Galvanic cell converts chemical energy into electrical energy via spontaneous redox…

Q: Write the equation that shows how a buffer made by dissolving CH3 CH₂ CH₂COOH and CH3CH₂CH₂COO Na+…

A: Answer: A buffer solution is the type of solution that resists the change in its pH on adding the…

Q: Select all true statement(s) about the number of the signal in a ¹H NMR spectrum. the absolute…

A: True statements- 1.the relative number of protons in that signal 2.chemically non-equivalent protons…