2. Calculate the mass density of air at the surface of the Earth using the ideal gas law and assuming global average values of surface pressure (984 hPa) and temperature (288 K).

Q: 37) In the United States, vision is tested by having the person attempt to read letters at a certain...

A:

Q: Choose the compound of molecular formula C7H13B1 that gives each alkene shown as the exclusive produ...

A: Alkyl halide on elimination gives alkene as final product.  

Q: Cu:O + c c Cu +co2 CO2 -> Cu = Cu = %3D C = C =

A:

Q: Mg + O2 -> MgO Mg = Mg = %D O = %3D

A:

Q: CHEMWORK Hexamethylenediamine (C6H16N2) is one of the starting materials for the production of nylon...

A: First we find the mole of reactant and then Theortical yield to find percent yield 

Q: Which of the following reactions is a non-markonikov's? a. CH3CH=CH2 to CH3CH2CH3 b. CH3CH=CH2 to ...

A: A. CH3CH=CH2  +H2 ------> CH3CH2CH3 This is  hydrogenation reaction this is non markonikovs addit...

Q: Two trials were completed in a kinetics experiment, resulting in the data collected below. Calculate...

A: The experimental values for two trials of a kinetic results are given as follows.  Trial Acetone,...

Q: What is the entropy change of the reaction below at 298 K and 1 atm pressure? 4AI(s) + 30 2(g) 2Al 2...

A:

Q: What is the molarity of a solution in which 71.37 grams of sodium nitrate, NaNO3 are dissolved in 39...

A: Molarity of solution is defined as numbers of moles of solute dissolved per litre of solution.  

Q: How many moles of C,H,O were dissolved into 91.340 g of ethylene glycol, if the freezing point of th...

A:

Q: 1. Differentiate crystal structure, crystal system, and crystal form.

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Q: 45.0 g Ba(OCl)2 and 175mL of 8.00 M HCl are allowed to react, how many grams of chlorine gas will fo...

A:

Q: What reagent would you use to distinguish between a ketone and methylketone and indicate what you wo...

A: The structure of ketone: Where , R and R' can be same or different alkyl groups(other than methyl) T...

Q: Describe   a   procedure   to   synthesize   the   ester   ethyl ethanoate, starting   from   ethene...

A:   Ethene upon hydration in presence of acidic medium gives ethanol  Ethanol further oxidised into e...

Q: Consider the structure of cyclobutyne, if it undergoes hydratio

A:   Internal akyne upon hydration gives ketone and acethylen gives aldehyde , by addition of water to...

Q: Question 1 of 10 Draw the orbital diagrams of the following elements: Silicon Oxygen Chromium

A: Orbital diagrams are pictorial description of electrons in an atom. 3 rules are useful in forming or...

Q: Solid lead(II) cyanide is slowly added to 125 mL of a 0.442 M potassium fluoride solution until the ...

A: Lead ions added as lead cyanide react with fluoride ions present in the solution of potassium fluori...

Q: Which of the following reactions require ethereal solution? a. CH3CH=CH2 to CH3CH2CH3 b. CH3CH=CH2...

A: Among these reactions ;  a) this conversion is possible when we do hydrogenation of the alkene.  b)t...

Q: Answer the following questions. N N-H Compound 1 Compound 2 Identify which compound is expected to h...

A: ->Aromatic compounds are most stable than antiaromatic.  

Q: 10.0 M NH3 pH: [H30+]: [OH-]: pOH:

A:

Q: Label the direction of electron flow for a galvanic cell based on the reaction below. What type of i...

A: Galvanic cell also known as voltaic cell is defined as a electrochemical cell in which electric curr...

Q: Balance the following redox reaction if it occurs in acidic solution.  What are the coefficients in ...

A:

Q: Given a solution of 0.1 M Ag+ and 0.2M of Pb2+, (Ksp for silver oxalate = 3.5x10^-11 and ksp for lea...

A: More soluble precipitate is the one having higher value of solubility product. In this case, lead ox...

Q: IUPAC (systematic) If ionic write the charge for each Common name formula Solid or liquid? lonic or ...

A: Ionic compounds : Ionic compounds are compounds made up of ions that form charged particles when an ...

Q: Calculate the standard energy change, A EO, for the reaction below. 12NH 3(g) + 210 2(g) 8HNO 3 (E) ...

A:

Q: Which ones are polar and which ones are non polar?

A: Polar molecules are the molecules having net dipole moment and non polar molecules have non zero dip...

Q: nsider the following reaction at equilibrium. 2002 (g) → 200 (g) + O2 (g) , AH° = -514 kJ Châtelier'...

A: Given- 2CO2<->2CO+O2.      ∆H=-514KJ

Q: A compound decomposes by a first-order process. If 13% of the compound decomposes in 60 minutes, the...

A: Given values- Time = 60 minutes Decomposition = 13%

Q: Describe the relationship between each of the pairs of isomers shown by recording Constitutional, Co...

A: ->After flipping we get confirmational isomer.  

Q: 30) What is the percent yield for the reaction below? Only 28.16 g of CO2 are observed to have forme...

A: Actual yield of CO2=28.16g Theoretical yield of CO2=225.3g Moles of C8H18=4mol Moles of O2=8mol

Q: CHC13, acetic anhydride H Conc. H2SO4 HO

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Q: Why do we use a salt bridge during calomel measurement

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Q: You’ve collected a soil sample from an unexplored island and cultured a new bacterial species by gro...

A: You’ve collected a soil sample from an unexplored island and cultured a new bacterial species by gro...

Q: Which of the following statements is correct about the formation of emulsion? O Soaps and detergents...

A:                                 Answer  Which statement is correct about the formation of emulsion E...

Q: A 75.6 mL sample of wet O2g) is collected over water at 21.4°C at a barometric pressure of 755. mmHg...

A:

Q: A 400 MHz 'H NMR spectrum of a mixture of common organic solvents consisting of benzene (CH) 8 7.37;...

A: conversion from ppm(parts per million) to mole %

Q: Predict the major product for the following reaction. Na,Cr207 H2SO4, H2O ?

A:

Q: Which of the following substances is suitable for Dumas method to determine its molar mass? a. n-but...

A: Correct option is (d) propane

Q: Aqueous sulfuric acid (H,SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous sodiu...

A: Answer: 18.8 g

Q: 4. Rhodium has an atomic radius of 0.1345 nm and density of 12.41 g/cm³. Determine whether it has an...

A:

Q: Is the major organic product of the following reaction. OHC. OHC. OHC. Br PdCl PPhy. EtN OHC. OHC. B...

A: ->alkene give coupling reaction with vinyl or benzyl bromide.  

Q: Here we have the molecular orbital energy diagram for this chlorophyll molecule. Match the absorptio...

A: Wavelength of absorption is inversely proportional to the energy gap between the two levels.

Q: Evaluate A S for the reaction below at 25 °C. CH 4(g) + 2CI 2(g) CCI 4 (e) + 2H 2(g) -135.4 -74.81 A...

A: CH4(g) + 2Cl2(g) --> CCl4(l) + 2H2(g) ∆H°f (CH4) = -74.81 KJ/mole ∆H°f(CCl4) = -135.4KJ/mole ∆G°f...

Q: The gas phase reaction A+B - C has a rate law which is 2nd doubled, the reaction rate would be incre...

A:

Q: Calculate the pH of a 7.51 M solution of HBrO. The K, of HBRO is 2.50 x 10. Express your answer usin...

A: Since HBr is a weak acid, we have to plot ICE chart to find [H+(aq)] and pH. Given the molarity of H...

Q: What reagent would you use to distinguish between the aldehydes and ketones and indicate what you wo...

A: Answer: Aldehyde and ketones can be distinguished on the basis of the difference in their chemical p...

Q: 2 M of methanol (CH3OH) was added to NaCl to make a solution ,the mole action of methanol was 0.6 an...

A: Given, Molarity of methanol= 2M Mol fraction of methanol= 0.6 Total moles of prepared solution= 9 mo...

Q: Calculate Kb for a 0.1 M solution of acetate ion, given that Ka for acetic acid is 1.8 x 10−5.

A: Given : Ka = 1.8 x 10-5

Q: 38) During the early 1970s, the price of copper rose to a point where the cent contained almost one ...

A:

Q: In the beginning of the procedure, you will combine 1g of 3-nitrophthalic acid along with 2 mL of 8%...

A: