If the molar composition of dry air is 78% N2, 21% O2 and 1% Ar, calculate the partial pressure of oxygen in dry air in cm Hg. Will this partial pressure be higher, lower, or the same in moist air at the same overall pressure? Explain briefly.

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Q: Use the data given below to answer the next three questions. 2 N20 (g) + 3 02 (g) → 4 NO2 (g) AH° =…

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Q: Review method used to increase the solubility of a drug under the following headings co solvents PH…

A: Various methods are used to enhance solubility of poorly soluble drug like physical and chemical…

Q: Aqueous FeCl3 and zinc will react according to the equation: 2 FeCl3 (aq) + 3 Zn (s) --> 2 Fe (s) +…

A: Given :-  2 FeCl3(aq) + 3Zn(s)-->2Fe(s) + 3ZnCl2 (aq)  no.of moles of FeCl3 = 15 mol  To…

Q: Explain, with the help of structures and curved arrow mechanisms, why trans-2-chloro-…

A: Given:

Q: Neutral Basic Acidic H. NH3 H3C-C-C00 -CH2-CH-C NH3 но arginine Leu OOC-CH2 C-COO NH3 Gln glutamate

A: carry positively charged amino acid-treated as acidic whereas negative charge on amino acid is…

Q: What is E°cell (in V) for a redox reaction that has ΔrG° = 300 kJ mol-1 at 25°C ? Assume 2 electrons…

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Q: Question 6 In ATR-FITR, an IR beam is directed onto an optically dense crystal with a high…

A: ATR-FITR stands for Fourier transform infrared spectroscopy - attenuated total reflectance.

Q: 2. Dmitri Mendeleev - Great Minds 3. Dmitri Mendeleev and the Modern Periodic Table Ti-s0 Mn-55 Fes…

A: Given : We have to tell how Mendeleev arrange the elements in periodic table.

Q: How many moles of H2O are required to form 1.3L of O2 at 325K and 0.988 atm?

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Q: Provide the starting material for the following transformation 1. Оз ? 2. Zn H20 A B D A

A: In this question, we have to provide the starting material for the given transformation.

Q: ऊज्क १ बेलाकोक मेल्ये पलयेnळ नe ananium कल्फणले ले प्रनाजर जाव्वे जा कडडवार कि व श्वायाचे वचव षeeaसत…

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Q: Ice melts at 273.15 K with AHus = 6.01 kJ/mol. An ice cube of mass 38.2 g is dropped into a swimming…

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Q: How much concentrated solution would it take to prepare 2.95 L of 0.585 M HCl upon dilution with…

A: To find how much concentrated solution would it take to prepare 2.95 L of 0.585 M HCl upon dilution…

Q: In a titration of 32.0 mL of a 0.250 M solution of a triprotic acid H,PO, (phosphoric acid) with…

A: Given- Volume of  H3PO4 =32.0 mL  Concentration of H3PO4 =0.250M Concentration of NaOH=0.800 M

Q: HHI 20.45 What monosaccharides are formed when the following disaccharide is hydrolyzed? CH,OH 1.…

A: Hydrolysis of disaccharide gives two mono saccharide...

Q: How do you draw the chemical structure of the following? 1. 2′-fucosyllactose…

A: In this question, we have to draw the chemical structure of the following molecules:…

Q: What is the pH of a solution in which 276 mL of HCI(g), measured at 28.0 °C and 1.08 atm, is…

A: Given,  Temperature, T = 28.0 °C                              = (273+28) K…

Q: rate =

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Q: Provide the starting material. LiCu ОН OCH3 CI A B D E = A or B F = B or C G = none of these

A: The reaction given is,

Q: out the chemical reaction between the acetic acid in the vinegar and the sodium bicarbonate in the…

A: Vinegar contains generally 4% acetic acid.

Q: Compound A reacts with CrO, in dilute acid to give 2,3-dimethylbutanoic acid. What is compound A…

A: Organic reactions are those in which organic reactant react to form organic products.

Q: Consider the equilibrium system described by the chemical reaction below. For this reaction, Kc =…

A: Given-> Kc = 2.1 × 103 H2 = F2 = 0.0021 M

Q: ut a balanced molecular and a net ionic equation,

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Q: 1) A buffer solution contains 0.350 M ammonium bromide and 0.400 M ammonia. If 0.0452 moles of…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 0-5 HCN               Ka = 4.9 X 10-10                      HClO2             Ka = 1.1 X 10-2 The…

A: Buffer range is the range of pH which is used for the determination of the working of buffer…

Q: Calculate the pH of a solution containing a caffeine concentration of 415 mg/L. Express your answer…

A: Given : We have to calculate the pH.

Q: 7 Explain what will happen to the magnitude of the repulsive force between 2 colloidal particles as…

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Q: ance the following equations: NH, (g)+O, (g) → NO, (g) +H,0 (g) А.) Al(NO,); + Na,S → Al,S, + NaNO,…

A: To balance the chemical equation we first need to count the number of atoms of each element on both…

Q: Trial 1 Trial 2 20.1 ML 20.1 ML Volume of Na3PO4 solution: Volume of BaCl2 solution: 20ML 1G.99…

A: Given: Precipitate: Ba3(PO4)2 molar mass of Ba3(PO4)2 = 601.93 g/mol

Q: conjugate acid-base pairs.

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Q: Liquid X is known to have a lower viscosity and lower surface tension than Liquid Y. Use these facts…

A: Given that liquid-X has a lower viscosity and lower surface tension than liquid-Y.

Q: The temperature of a sample SF6 at a fixed volume is changed , causing a change in pressure from…

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Q: Calculate quantity of charge and maximum work from a battery. The discharge reaction for a…

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Q: QUESTION 6 You are honored to be asked to prepare 500 mL of 6.0 M HCI by diluting concentrated HCL…

A: Given:: M1= 6.0 M V1=500.0 ml M2= 15.0 M V2= ?

Q: Draw a mechanism for the following transformation: For the mechanism draw the curved arrows as…

A: Enolate are soft nucleophile it gives 1,4 addition reaction...in 2nd question...

Q: Hydrogen can be prepared by suitable electrolysis of aqueous barium salts   A. False   B. True

A: The answer is given below

Q: How are the following aspects of a reaction affected by the addition of a catalyst? Increased…

A: Addition of catalyst does not change position of equilibrium it can decreases activation energy of…

Q: Consider the titration of 80.0 mL of 0.100 M Ba (OH), by 0.400 M HCl. Calculate the pH of the…

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Q: Write the electron configurations for the following atoms. Do not use shorthand notation, and use…

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Q: What is the equation for the reaction between Cu(s) and MgSO4(aq)?

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Q: 20. In the electrophilic aromatic substitution (EAS) of pyrrole, the preferred position of attack of…

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Q: e percent dissociation

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Q: The generator of a car idling at 1200 rpm produces 13.9 V What will the output be at a rotation…

A: Given that, The generator of a car is idling at = 1200 rpm Voltage produced = 13.9 V We have to find…

Q: Calculate the temperature (in kelvins) at which the sign of AG° changes from positive to negative…

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Q: Consider the following reversible processes: XY (s) = x* (aq) + Y" (aq) Ksp1 = 0.25 CD2 (s) c2+ (aq)…

A: Given that, two reversible processes are XYs↔X+aq+Y-aq                     Ksp1=0.25CD2s↔C2+aq+2D-aq…

Q: Calculate the pH of a solution in which one normal adult dose of aspirin (670 mg ) is dissolved in…

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Q: The flow rate through a channel can be determined using a weir by the following formula: Q =…

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Q: Draw the product(s) of the following reactions. H2 Lindlar catalyst CH,CH,-CEC-CH, • Consider E/Z…

A: ->lindlar catalyst is reducing agent which can reduce Alkyne to cis alkene.

Q: A 5.18 g sample of aluminum, initially at 53.6 °C, is submerged into 25.1 g of ethanol at 18.5 °C in…

A: Given: Mass of Aluminium = 5.18 g  Initial temperature = 53.60C  Mass of ethanol = 25.1g