A 135.0 L weather balloon filled with 6.40 mol of helium has a small leak. If the helium leaks at a rate of 10.0 mmol/hr, what is the volume of the balloon after 69.0 hours? L

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction Cu²+ (aq) +e Cu…

A:

Q: For many purposes we can treat ammonia (NH3) as an ideal gas at temperatures above its boiling point…

A: where:when the pressure is doubled, the ammonia's temperature may be changed while maintaining a…

Q: Activity coefficients become more important I. with smaller ions II. with larger ion charges III. at…

A: The correct answer is e, I, II, and III. Activity coefficients become more important with smaller…

Q: Question 5 What is the major product to the following reaction? NaOCH3 HOCH3

A: Robinson annulation involves the following steps :Enolate formationMichael additionAldol…

Q: What is the major product of the following reaction? А. В. ОН ОН OH ОН 1. NaBH4 2. H3O+ с. ОН ОН ОН

A: NaBH4 act as  mild reducing agent it reduces aldehyde and ketone mainly

Q: Provide the major organic product(s) in the reaction below. CH3 1. PhCO 3H 2. CH₂ONa, CH₂OH Draw the…

A: The epoxidation of an alkene using peroxycarboxylic acid, such as PhCO3H is a common method to…

Q: What is the major product of the following reaction? A. B. -NH OH C. D. H+

A:

Q: Balance the following redox reaction in acidic solution. CI (aq)+103(aq) → Cl₂(g)+1₂(s)

A: In the redox reaction, we balance the half-oxidation and reduction reactions. Then we add that…

Q: hat is a primary reason for needing to standardize strong base titrants like KOH? Select the single…

A: A titrant is the solution which is added from burette while a sample is taken in titration flask.

Q: 19. K. = 6.6 x 105 for benzoic acid (C6H5COOH). Part 1. How many moles of benzoic acid is required…

A:

Q: ided starting and product structures, draw the curved electron- shing arrows to show the…

A:

Q: You have a gas sample of carbon dioxide at 298 K. If the pressure is 0.827 atm what is the pressure…

A: We have to convert the unit using dimensional analysis. We know the relationship between the units…

Q: A galvanic cell is powered by the following redox reaction: 3+ NO3(aq) + 4H* (aq) + 3 Fe²+ (aq) →…

A: Redox reactions contain both reduction and oxidation reactions. One of the compounds is oxidized and…

Q: NO2(g) and N₂O4(8) are in a reaction vessel with partial pressures of 0.350 and 0.650 bar,…

A: Given,The partial pressure of NO2 =0.350 barThe partial pressure of N2O4=0.650 barTo find if the…

Q: Draw the product(s) of the following reactions. 1. BH3/THF CH3 H3C-C-C=C-H OH 2. H₂O₂/ aqueous NaOH…

A: Organic reactions are the reactions in which organic reactants react with each other to give organic…

Q: The solubility of the ionic compound M2X3, having a molar mass of 291 g/mol, is 3.60 × 10-7 g/L.…

A: Solubility product constant Ksp is equilibrium constant for the dissolution of solid substance in…

Q: The molecule shown here contains carbons. carbons total, and hydrogens, asymmetric

A: Asymmetric carbon is that carbon which is sp3 hybridised and contain four different substituents…

Q: Note: Reference the Solubility of ionic compounds in water table for additional information. Part 1…

A:

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 210, (aq)…

A:

Q: What product would be produced in the reaction below? O₂N. OA OC OD OB O₂N CI G CH₂ONa 80 °C O₂N O₂N…

A: Nucleophilic aromatic substitution is a classical reaction in which a nucleophile displaces a…

Q: How many grams does 7.5 moles of carbon dioxide weigh?

A: How many grams does 7.5 moles of carbon dioxide weigh? We know that Mass of one mole of any…

Q: 4) CH3 0804 H₂O₂

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

Q: performed an alkylation of 1,4-dicyanobenzene (1) using tert-butyl alcohol (2). N=C Of H3C- What…

A: The reactant is  and the reagent is  in the presence of  catalyst.

Q: A chemist dissolves 624. mg of pure barium hydroxide in enough water to make up 70. ml. of solution.…

A:

Q: Predict which carbon will have the most upfield signal in the ¹³C NMR spectrum. || OH III IV Br NH₂

A: The number of signals in the carbon-13 spectrum is equal to the number of different types of carbon…

Q: A concise verbal or mathematical statement of a relationship between phenomena that is always the…

A: A concise verbal or mathematical statement of a relationship between phenomena that is always the…

Q: Propose a synthesis for the following molecule from starting material containing 3 carbons or less.…

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

Q: 3. For the following variants of the rearrangement reactions we have covered in class, propose a…

A: DeprotonationIntramolecular nucleophilic susbtitutionCheletropic reaction

Q: w the final product formed in the reactic O O H₂0¹

A: The given ester is cyclic ester.It is also know as lactone. Hydrolysis of lacton give alchol and…

Q: Rank the elements or compounds in the table below in decreasing order of their boiling points. That…

A: We have to determine the decreasing order of boiling point for the given substances shown in the…

Q: Is SCN or NCS softer? Name the type of isomer: 2+ NH3/1 NH3 SCN || NH3 CO. NH3 NH3 NCS NH3/NH3 NH3…

A: Those ligands in which charge is distributed over larger size are termed as 'soft ligands'.Those…

Q: Draw on your rough sheet the "best" Lewis structure for a molecule consisting of three oxygen atoms…

A: Resonance structures are structures where there is delocalization of electrons to impart overall…

Q: Consider the reaction: N₂(g) +202 (9) 2NO₂(g) Using standard absolute entropies at 298 K, calculate…

A: Substance

Q: Calculate the energy required to heat 1.30 kg of iron from 2.3 °C to 11.7 °C. Assume the specific…

A: The question is based on the concept of specific heat capacity.It is defined as the amount of heat…

Q: Select all of the nonpolar bonds

A:

Q: Given the following balanced equation and information: Fe₂O3 (s) + 3 CO (g) 2 Fe (s) + 3 CO₂ (g) .…

A:

Q: What are the major organic products of the reaction shown below? HBr Br Br OH OH -OH -Br + -Br -OH

A: Methoxy benzene is also known as anisole.

Q: Current Attempt in Progress Predict the stereochemical outcome for the following E2 reaction. Draw…

A: => one step mechanism=> Strong base is used=> refers to the elimination bimolecular…

Q: 3. The normal boiling temperature of benzene is 353.24 K, and the vapor pressure of liquid benzene…

A: a. AHm vaporization:where:the enthalpy of vaporization, utilize the following the Clausius−Clapeyron…

Q: Eosin Y Rhodamine B

A: The maximum absorption wavelength (λmax ) for the compounds Rhodamine B and Eosin Y are as follows:

Q: Predict the splitting pattern predicted for the circled proton in the structure below. A) singlet B)…

A:

Q: The enthalpy of vaporization of Substance X is 7.00 kJ/mol and its normal boiling point is −33.°C.…

A: Given:enthalpy of vaporization =  7.00 kJ/mol = 7.00 x 103 J/molnormal boiling point = −33°CWe have…

Q: What aldehyde is needed to prepare the carboxylic acid by an oxidation reaction? CHỊCH,CHCH, CH3…

A: Information of question

Q: Label the following groups as homotopic, enantiotopic or diastereotopic. If they are enantiotopic…

A: Optical isomers are chiral and non-superimposable mirror images of each other. Each of these…

Q: 11 OMe OMe OTBS Exo. Pd₂(dba)3, P(2-furyl)3 MeCN, rt, 91% MeO. OMe OMe OTBS ''OH 12

A: Product of following reaction can be made by applying appropriate reaction mechanisms.

Q: Consider the following three-step synthesis. Select the single best answer for each part. Part 1 of…

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

Q: complete the synthesis cyclohexane to 1R,2R 2 bromocyclohexanol

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

Q: Definition of terms - Battery - Galvanic Cell - Electrolectic Cell Note only need   the…

A: Given -Battery- Galvanic Cell- Electrolectic CellWe need to write the definition of  above terms and…

Q: Draw and name all of the monochlorinated products including stereoisomers that can result when…

A: When 2,2 -dimethylbutane is subjected to free-radical chlorination four different mono chlorinated…

Q: Please draw the Best and Worst Energy conformations for the following compounds; 1.…

A: Conformations are isomers formed by the free rotation of the C-C sigma bond. The C-C sigma bond can…