What is the mass of a single He atom? (Please type answer no write by hend).

Q: A voltaic cell is constructed from a standard Co²+ |Co half cell (E° red = -0.280V) and a standard…

A: During reduction, electrons are gained and during oxidation, electrons are lost. Now, oxidation…

Q: Tamiflu, the most effective antiviral drug used to treat avian influenza, has the following…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A 50.0 mL aliquot of a 0.00100M solution of acetic acid (CH3COOH, Ка = 1.8 x 10-5) is titrated with…

A:

Q: K H H es as ap H

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

Q: Given the thermochemical reaction CH4 +202 CO₂ + 2H₂O AH = -890 kJ how much energy is generated when…

A: CH4 + 2O2 -----> CO2 + 2H2O      ∆H = -890 kJmoles of O2 reacted = 4.8 molAmount of energy…

Q: Predict the product for the reaction shown. H H₂ Pd ОН огового OH OH OH IV OH

A:

Q: A sample weighing 3.137 g is a mixture of Fe₂O3 (molar mass = 159.69 g/mol) and Al₂O3 (molar mass =…

A:

Q: Identify the major and minor product(s) that are expected for the following reaction. Select all…

A: DBU is a base and will give E2 elimination thus Iodine will leave and formation of alkene will take…

Q: (e) NO₂ CN TI F NO₂ Ph CN

A: For the synthesis of product e  the starting compound is reacted with Base (NaOH) to form a…

Q: 9. Using curved arrows, please provide a mechanism for the following reaction. H₂SO4 H₂O HO

A: Given,The reaction:

Q: Curved arrows are used to illustrate the flow of electrons. Using provided starting and product…

A: Since you have asked multiple questions, we will answer the first question for you. Please repost…

Q: Draw structural formulas for the major organic product(s) of the reaction shown below. NO₂ Cl₂ FeCl3

A: Halogenation is a type of substitution reaction where hydrogen is replaced with bromine or chlorine.…

Q: Write down the common (not IUPAC) names of the organic molecules that would be released if this…

A: Given question is related to identifying the products of the given compound (triglyceride )…

Q: The electron density solutions for the molecule H₂ in question 1 are different sizes. Why is that?…

A: We have been given different orbital diagram and we have to find the correct answer for the given…

Q: 3. Draw the chemical structures of the products for each of the following chemical reaction.…

A: Given is organic reaction. The given reactant is ester.The given reagent is sodium hydroxide.

Q: 4-aminobenzoic acid -HSO H₂N lok ok H₂SO₂ HSO -H₂O H₂N HSOA H₂N Benzocaine

A: This is an multi-step reaction, total five step is possible.

Q: Be sure to answer all parts. Find the pH of the equivalence points when 28.9 mL of 0.0850 M H₂SO3 is…

A: The Ka values of H2`SO3 are,

Q: A fifth compound was studied but not included in the table (see paragraph II)…

A: The structure 1,1 di-bromoethyl benzene is shown below,

Q: How many mole are there in 691.3 mg of strontium permanganate?

A:

Q: Which of the following are transuranium elements? Choose all that apply. Te Es Bh sr Re

A: Transuranium elements: Elements having atomic number greater than 92 are known as Transuranium…

Q: How many electrons are transferred in the formation of the ionic compound between Mg and  p

A: A question based on stoichiometry. The total number of electrons transferred in a reaction is…

Q: Calculate the amount of heat needed to melt 172. g of solid acetic acid (HCH3CO₂) and bring it to a…

A:

Q: Question: Explain whether the solubility product constant should change when the concentration of…

A:

Q: A student reacts 28.94 mL of 0.2593 M K3PO4 with excess Mg(NO3)2 as shown in the reaction below.…

A:

Q: 53. Write correct mechanisms and specify the type of substitution or elimination reaction for the…

A: We have to predict the structure of the required products.

Q: جد OEt 1. NaOEt 2. 0 3. HO H

A: This is an example of Michael addition

Q: The most likely location for an electron in H₂ is halfway between the two hydrogen nuclei. Select…

A: H2 is a very stable molecule. Which has two electrons in bondingorbital. It's impossible to remove…

Q: What is the product of the following reaction? 2 CH₂CH₂CH₂ OH OH CH3CH₂CH₂CHCH CH3CH₂CHCH OH H…

A: aldol condensation is a condensation reaction in organic chemistry in which two carbonyl moieties…

Q: Calculate the equivalence point of a titration of 0.3326 g of THAM (pKa of conjugate base is 8.08)…

A: The objective is to determine the pH at the equivalence point for the neutralization titration of…

Q: Which of the following is not a reasonable retrosynthesis? O O OTS Br OH OMe

A: "Dear student, as an expert we are only allowed to answer one quesstion at a time , please re-uplode…

Q: Please don't provide handwriting solution

A: Wittig reaction is the conversion of aldehyde and ketone into olefins by using phosphorus ylide.

Q: 1. For the reaction provided, the rate of disappearance of I (aq) is 2.4 x 10-3 mol/L.s. 103 (aq) +…

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as…

Q: All of the following are reasons for considering the enzymes as druggable targets except: enzymes…

A: Enzymes are good drug targets because: They have allosteric sites where modulators can bind,…

Q: Using E-Z designators, identify the configuration of each C=C double bond in the following compound…

A: Given question is related to assigning the E/Z configuration to the given molecule. “Since you have…

Q: A common alkene starting material is shown below. Select the reaction conditions that would provide…

A: Find out suitable reagent for organic transformation.

Q: Provide the correct IUPAC name for the skeletal (bond-line) structure shown here. Stereochemistry is…

A: We have to write the IUPAC name for the given alkene.

Q: Which of the following combinations of ingredients would give you the hardest bar of soap? Potassium…

A: In terms of the physical hardness of soap, this refers to how solid and firm the soap is. Hardness…

Q: What strategy X was used to develop the new drug Y? Select one answer. H₂CO H₂CO X CH3 НО. H₂CO H₂C…

A: The given reaction of [4+2] cycloaddition reaction to form the product drug Y. The reactant has two…

Q: Fill in Intermediate & Product он Ć бути CH 3 + OK I P

A:

Q: Figure 13 + CH3-CH₂-Br AIBr3

A: The given reaction is Friedel-Craft alkylation reaction. Mechanism: first step : Alkyl halide react…

Q: Benzoic acid C6H5COOH is a commonly used antimicrobial preservative in food and beverages,…

A:

Q: 1) Which of the following molecules display a free bond rotation between the non-hydrogen atoms? A)…

A: Given are organic compounds. Free bond rotation is possible in single bonds only.Double bonds and…

Q: NaOH Ph EtOH, heat

A: The reactant is an aldehyde. It reacts with a base sodium hydroxide  and subsequently with the…

Q: Predict the major product of the following reaction: 1) Hg(OAC)2, CH₂OH 2) NaBH4 OAc O There is no…

A: Given,The reaction:

Q: b) (. Write the major product of the following reaction and provide a detailed, stepwise mechanism…

A:

Q: 7. What is the major elimination product of the following reaction? Explain. "Cl NaOMe/MeOH A

A: Give reaction is an example of 1,2 elimination reactions.In this reaction the bulkier ethyl group…

Q: Select 4) Which is the correct IUPAC name for the following compound A) 2-Hydroxy-3-methyl-heptane…

A:

Q: The Clausius-Clapeyron Equation provides a relationship between the vapor pressure of a material and…

A: The Clausius-Clapeyron Equation is a fundamental formula in thermodynamics that establishes a…

Q: 1) Draw the products of the following reactions: a) h) f) b) d) g) c) e) + + HCI HBr HBr HBr HCI HCI…

A: Given are organic reactions. The name of given reaction is Hydrohalogenation reaction. It is an…

Q: What will have a larger speed distribution, helium at 500 K or argon at 300 K? Helium at 300 K or…

A:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.