Calculate the entropy change of the surroundings when 1 mol of a perfect gas expands isothermally (at 298 K) against an external pressure of 10^6 Pa, from a volume of 5.00 dm3 to a volume of 15.00 dm3

Q: What is the equilibrium Al concentration when 3.25 Lof a 0.119 M aluminum bromide solution are mixed...

A: When aluminum bromide and sodium phosphate solutions are mixed, they would undergo precipitation rea...

Q: What is the name of the reducing monosaccharide found in the disaccharide shown here? но HO H HO OH ...

A: With one anomeric carbon unable to convert to the open-chain form (non-reducing end), only the free ...

Q: A 300. LL kiln is used for vitrifying ceramics. It is currently operating at 1245 ∘C∘C , and the pre...

A: Given values-> Volume= 300L T= 1245°C = 1245 + 273 =1518K  P= 0.9500 atm    

Q: In an aqueous solution of potassium chloride, the solute is (1) Cl-only (2) KCI (3) K+ only (4) H20

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Q: 10) Calculate the moles of magnesium ( Show your calculation

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: Which of the following properly represents the alpha (a) form of the C-2 epimer of D-glucose? CH,OH ...

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Q: (CH,(CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseo...

A: First of all we will calculate moles of hexane and oxygen.

Q: Chemistry Question

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Q: What is the name of the non-reducing monosaccharide found in the disaccharide shown here? но H. H. Н...

A: Nonreducing disaccharides can be defined as the disaccharides having glycosidic bonds between their ...

Q: 34. Consider the following reaction at 100 °C. N2O4(g) - 2 NO2(g) K = 0.36 A reaction mixture at 100...

A:         N2O4(g)<===> 2NO2(g) , Kc = 0.36 I:       0                     0.100    

Q: PRE-LAB QUESTION After consulting sections 5.7 of your text, draw the complete MO diagram for the di...

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Q: What gas should we use to separate two compounds with very similar boiling points

A: solution is shown below.

Q: empirical formula f

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Q: Liquid hexane (CH; (CH,),CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide ...

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Q: CO,Me OSIME, CO,Me Br A Br

A: Concept ; (3,3) sigmatropic reaction or rearrangement.  In this reaction the sigma bond between the ...

Q: percent yield of water.

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Q: Hydrogen iodide decomposes according to the equation: 2HI(g)  H 2(g) + I 2(g), K c = 0.0156 at 400ºC...

A: Given data : Initial Moles of HI = 0.660 mol Volume of vessel = 2.00 L Kc = 0.0156 

Q: Consider the following reaction at 298K. I2 (s) + 2 Cr2+ (aq) - 2 I (aq) + 2 Cr3+ (aq) Which of the ...

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Q: Vhat is the H3O* concentration of a 0.100 M of a weak organic acid ( HA ) with Ką = 3.5 x 10-8 ? HA(...

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Q: Assume for the following situations that Beer’s law remains linear. For (a) and (b), indicate whethe...

A: Beer’s law is given by,        A=ε×c×lWhere,        A=absorbance of the solution        ε= extinctio...

Q: An unknown hydrocarbon contains carbon, hydrogen, and oxygen. Combustion of 1.5000g of the hydrocarb...

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Q: Lewis structure name of highlighted group H H .. H C -О — Н - н н

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Q: Identify the acids, bases, conjugate acids, and conjugate bases in the reaction below. "C." stands f...

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Q: Methyl Benzoate IR Spectrum 100 90 80 70 60 50 40 30 20 10 4000 3500 3000 2500 2000 1500 1000 500 Wa...

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Q: Half-reaction E° (V) Hg2+(aq) + 2e Pb2+(aq) + 2e Hg(I) 0.855V → Pb(s) -0.126V Mg2+(aq) + 2e Mg(s)-2....

A: The species which have greater Eo value of reduction will be reduced by easy means.  So, it will be ...

Q: OBn reflux Me AR R = OMe NH HN NH OMe 1. 2. HCI to

A: We have find out the final product.

Q: Name Of Experiment: Flame atomic emission spectroscopy(FAES): Determination of Na in drinking water....

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Q: Calculate the Equillibrium constant at 25 Degrees Celsius for the following Reaction: From the data ...

A: We have to find equilibrium constant from the given data. Temperature = 25°C or 298 K

Q: Consider the following half-reactions: Half-reaction E° (V) I2(s) + 2e 21(aq) 0.535V Cu2+(aq) + 2e¯ ...

A: we have given the reduction potential values: 1) higher the reduction potential, the strongest the o...

Q: Aqueous sulfuric acid (H, SO,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium s...

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Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6....

A: As given that heat flow out of  the water that  means heat is lost by it and it's temperature would ...

Q: (CH:(CH),CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO,) and gaseou...

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Q: Calculate the atomic mass given these naturally occurring isotopes and abundances: Silicon: Si-28 (...

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Q: Determine the entropy difference between solid and liquid states for a substance melting at 100 °C a...

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NAOH) to produce aqueous sodium b...

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Q: rite the net chemical equation fo

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Q: What is the percent dissociation of a weak acid with pH of 2.59 ? ka = 6.5 × 10-5. 0.50% 2.5% 1.5% 3...

A: Given values-> pH = 2.59  Ka = 6.5×10^-5  

Q: Consider this equilibrium: CUCO3 (s) + Cu2* (ao) (aq) + CO3²- K= 1 x 10-10 What is the equilibrium c...

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Q: e the percent yield of se

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Q: Balance the following chemical equation for the reaction of hypothetical elements X, Y, and Z. On yo...

A: ____X3Y6Z2 + ___Z2  → ______Z2 + ___XY2

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 339.0 g sample ...

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Q: Draw the starting alkyne that would lead to this major product under these conditions. Select to Dra...

A:  Alkynes undergoes oxymercuration to form ketone

Q: You titrate 0.1 L of 0.2 M HCI with 0.1 M NaOH. The half equivalence point will be reached when adde...

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Q: Classify each anion as a weak base or pHpH neutral.  ClO4^- ,  HS^-

A: Concept : Conjugate base of strong acid is pH neutral.  Conjugate base of weak acid is weak base. 

Q: What would happen if the solute (salt or sugar) concentration exceeds that of the solvent’s? Would i...

A: When the solute concentration exceeds to that of solvent then the solute particles become more in nu...

Q: Liquid hexane (CH; (CH,), CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide...

A: No. of moles = mass/molar mass  Mass = moles × molar mass  Percent yield = {actual yield/theoretical...

Q: a) Draw a Newmann Projection of the following compound looking down the indicated bond (Ph represent...

A: Firstly draw the molecule in the sawhorse form and then take it for the newmann projection Draw the ...

Q: net chemical equation

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Q: Which solution would have the lowest boiling point elevation? 3.0 m NaCl O 3.0 m CaBr2 O 4.0 m Na3PO...

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Q: Write the equilibrium expression for Ca2+ + 2Cl- ⇌ CaCl2 with activity coefficients.

A: