Which

Q: What is the IUPAC name of the following structure? OCH3 O 5-ethyl-2-methoxy-3-methyl-4-pentyne 2-met...

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Q: Under normal atmospheric pressure, nitrogen boils (and condenses) at - 196°C. When 7.7 g of nitrogen...

A: Given: Mass of nitrogen = 7.7 g. Initial temperature of nitrogen gas = -196 oC Initial temperature o...

Q: Compound 1 Mass Spectroscopy: MASS SPECTRUM 100 80 60 40 20 0.0 10 20 30 40 50 60 70 m/z Interpretat...

A: Mass spectrometry is an analytical technique which tends to determine the molecular mass of the comp...

Q: You wish to make a 0.242 M hydrobromic acid solution from a stock solution of 12.0 M hydrobromic aci...

A: Given:

Q: 3. Decide whether each pair of formulas represents enantiomers, diastereomers, structural isomers or...

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Q: A 3.664-g sample of a monoprotic acid was dissolved in water. It took 20.27 mL of a 0.1578 M NaOH so...

A: let monoprotic acid be HA which reacted with NaOH as: HA + NaOH → NaA + H2O Molarity of NaOH = 0.157...

Q: Which of the following statements is correct about a half-life? a) For a second-order reaction, its ...

A: Neither a) nor b) is correct

Q: Match each substance with its strongest IMF.  (Note: You may need to use a match more than once and ...

A: Please see the attachment. 

Q: The 2D particle in a box model can be used to describe the spectra of aromatic hydrocarbons. Assume ...

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Q: electron configuration of K⁺, the + is confusing me

A: Given  Species = K+ Electronic Configuration = ?

Q: Choose the correct structure of the compound with the following spectral data. A A) В B) C C) D D) F...

A: Given is 1H nmr spectra.

Q: 2. What is the empirical formula for the compound with 40.27% K, 26.78% Cr, and 32.96% O?

A: Given: The unknown compound has the following elements: The mass % of K, =  40.27 %. The mass % of C...

Q: What volume of a 0.200 M hydrobromic acid solution is required to neutralize 17.1 mL of a 0.119 M ba...

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Q: The first-order decomposition of a colored chemical species, X, into colorless products is monitored...

A: Given molar absorptivity constant, E = 5.00 × 103 cm–1 M–1  path length, b = 1.00 cm Rate  constant,...

Q: Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to standa...

A: Given information, Concentration of potassium hydroxide (KOH) = 0.294 M Volume of KOH used = 24.1 mL...

Q: A 0.5220-g sample of an unknown monoprotic acid was titrated with 9.94×10 2 M NaOH. The equivalence ...

A: Given that : Mass of the acid = 0.5220 g Molarity of NaOH = 9.94 x 10-2 M Equivalence point occurs a...

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C. Calcu...

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Q: True or False  1) A 10 cm3 piece of magnesium will have a greater mass than a 10 cm3 piece of zinc....

A: Given, Volume of Magnesium = 10 cm3 Density of Magnesium = 1.7gmL Volume of Zinc = 10 cm3 Density of...

Q: 1. Escriba el producto de la reacción Diels – Alder, muestre la estereoquímica del producto.

A:   (4+2) pi cyclo addition takesplace in this reaction via a concerted mechanism Diene and dienophil...

Q: Consider the following Fischer projections of 3-amino-2-butanol. Assign an R or S configuration to C...

A: Enantiomers are non-superimposable mirror images of eachother, and they have exact opposite configur...

Q: Select all the solvents/solutions in which you would expect this compound to dissolve: HO Dilute aqu...

A: Answer- B and D

Q: Calculate the wavelength

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Q: A sample of hydrogen gas at 20.7°C and 78.7 torr occupies a volume of 29.4 L. What will the gas pres...

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Q: 3. Acetone, CH3(C=0)CH3, is known to all biologists because of its usefulness as a solvent and clean...

A: DBE of 1,1,3,3,5,5-hexamethyl trioxane = (C+1)+N/2-H/2-X/2 = (9+1)-18/2 = 10-9 = 1 When three aceton...

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table...

A: Given that : We have to arrange the given types of radiations according to increasing order of frequ...

Q: How many molecules of H gas are present in a 2.59 L flask at 57.°C and 904. Torr? (Note: The answers...

A: Given, Volume = 2.59 L  Temperature = 57° c  Pressure = 904 torr       

Q: What is the main product of the following reaction? CH3 Br2 H2O

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Q: If a balloon is initially at 25.0 °C with a volume of 2.80 L, what would the volume of the balloon b...

A: Here, the volume of a gas changes with the change in temperature at constant pressure. Thus, we need...

Q: Which one of the following is a false statement? OThe stronger the acid, the larger its Ka. The conj...

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other ...

Q: Consider the isomers of tert-butylcyclohexanol in conformational structures. Two are cis-2-tert-buty...

A:

Q: Given cyclohexane in a chair conformation, draw the most stable isomer and conformation of 1,3-dibro...

A: The energy of a confirmation is decided by the interactions between the substituents present in the ...

Q: UNK -250000 -200000 -150000 100000 2 noighbors -50000 0- ref-07 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 ...

A: Every nuclei will have spin and if an external magnetic field is applied, there will be an energy tr...

Q: Enter the balanced complete ionic equation for the acid-base reaction HI(aq)+RbOH(aq)→ Enter the b...

A: In an acid base reaction salt and water is formed. 

Q: H3N. LOCH3 'N' H CH3 H- CI Br ČH3 エ エ

A: Desiganate the (R) or (S) configuration at each chirality center in the following compounds--

Q: Problem: A gas cylinder has an internal volume of 2,600L. If the sun heats the gas cylinder from a t...

A: Given:  Volume = 2600 L  Initial temperature (T1) = 20°C = 293 K  Final temperature (T2) = 55°C = 32...

Q: Place the correct charges

A: Correct charges

Q: A mixture consisting of “4” kg O2, “15” kg N2 and “2” kg CO2. The mixture has a pressure of 2 bar an...

A:

Q: Under what wavelength (in nm) should a spectrophotometer be set to be able to measure the optical de...

A: 1. Answer - At 600 nm  wavelength (in nm) should a spectrophotometer be set to be able to measure th...

Q: Write the equilibrium constant expression, Kc, for the following reactions. Indicate also if the equ...

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-part for...

Q: For the addition reaction below, determine the three possible products and show the FULL electron-pu...

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Q: How many mL of 0.789 M HI are needed to dissolve 9.52 g of MgCO3?

A: Given ; molarity of HI = 0.788 M               Mass of MgCO3 = 9.52 g

Q: Predict the solubility of the following chemicals: Is it more soluble in water or hexane? a. CH3NH2 ...

A: A ) Soluble in water as it is polar and will form hydrogen bonds with water molecules.   As we know ...

Q: What is the pressure in a 3.75-L flask containing 3.97 g of SO, at 17.6°C? O 0.324 atm O 0.394 atm O...

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Q: what is the molecular formula of the compound with molar mass of 252 g/mol and an emperical formula ...

A: • The values provided in the question are:-  i) Molar mass of a compound = 252 g/mol  ii) Empirical ...

Q: XeF2O, ClO4-, HNO2, CH3CH(NH2)COOH (amino acid alanine). Identify the molecules with the following l...

A: The solution is given below - 

Q: A trisubstituted cyclohexane compound is given in its chair conformation. Draw the corresponding pla...

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Q: Obtain the moles of substance in each of the following.  7.83 g S8

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Q: a) How many degrees of unsaturation (double bond equivalents) are represented by the molecular formu...

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Q: What is the order for x?

A: The solution is given below - 

Q: 14. Chromium, like most heavy metals, has damaging effects on wildlife. What mass (in grams) of chro...

A: Given data chromium concentration = 75 ppm total mass = 6.0 kg we know that ppm is defined as part p...