At an altitude of 15 km the temperature is 217 K and the pressure 12.1 kPa. What is the mean free path of N2 molecules? Note: Cross-sectional Area for Nitrogen is 0.43 nm2 when the Cross-sectional Area = d2π

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Q: a. K2Cr207 / Aq. H2SO4 /heat b. HNO3 / H2SO4 c. Br2 / FeBr3 d. NaOH, then H2O2 e. Sn / HCI f. NANO2 ...

A: In electrophilic aromatic substitution reaction, methyl group acts as ortho para directing group due...

Q: Proton NMR: 2.7 (quartet, 2H), 2.5 (doublet, 2H), 1.7 (nonet, 1H), 1.6 (broad singlet, 1H), 1.1 (tri...

A: 1. 3300 cm-1  this peak is due to N-H stretching of secondary amine.  

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 7.00 K 10 (7.00 billio...

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Q: Enter yeur ansmer in the provided bor. The reaction between nitric exide (NO) and oxygen to form nit...

A: Nitric oxide reacts with oxygen to form nitrogen dioxide. The equation for the balanced chemical rea...

Q: Which of the following molecules will NOT exist? Select one: O a. H2 O b. Liz2* Ос. Liz O d. Hez*

A: Which of the molecule will not exist ?

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A: An ideal gas will follow the ideal gas equation. The ideal gas equation is given by PV=nRT, where P,...

Q: Be sure to answer all parts. The AG for the reaction H,(e) + I(8)= 2HI(3) is 2.60 kJ/mol at 25°C. In...

A: Given-> H2(g) + I2(g) -->2HI (g) ∆G°= 2.60 KJ/mole = 2.60 × 1000 = 2600 J /mole (1 KJ = 1000 J...

Q: Need solution to all parts otherwise I'll downvote your answer

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Q: HI Br Br Br H Br Brи Ill

A: Concept  1) Enantiomers are the non superimposable mirror images to each other.  2) Diastereomers ar...

Q: Be sure to answer all parts Hew many moles of cobalt (Ce) stoms are there la 2.00 x 10 (200 hillion)...

A: Given, Number of Co atom = 2.00×10^9  Avogadro's no. = NA= 6.023×10^23

Q: Annotate the H-NMR spectrum of 3-nitrobenzaldehyde

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Q: H Ph. Provide mechanisms for the reactions: (a) N-Ph „NH2 CH3 CH3 (b) iBuO, OtBu DIBu Ph then H Ph N...

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Q: The line emission spectrum of cerium is most intense at 419 nm. Given this information, which of the...

A: Wavelength of gamma rays is small in comparison to visible region. 

Q: = pressure at

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Q: Formic acid (HCHO,) has a K, 1.8 x 10. What is fractional composition (a) of formic acid in solution...

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Q: molar mass

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Q: Draw condensed structural formulas for all unique constitutional isomers of the monochloro derivativ...

A: The answer is as follows:  

Q: me pH o

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Q: Use the solubility chart below, identify the cations that would be expected to form a precipitate up...

A: We have to tell solubility of ions with the help of solubility chart.

Q: Why should we study the strength of acids and bases in Chemistry?

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Q: Cation Symbol Anion Symbol and charge Compound Formula Name And charge lithium fluoride Li* F LiF so...

A: Cation : Cations are positively charged ion  Anion : Anion are negativity charged ion .  

Q: Given the following reactions 2C D K-5.12 10 D 2A - 28 K-653 10 1st attempt Calculate the value of t...

A: The solution is as follows:  

Q: An engineer is preparing an experimental gas fuel mixture for a rocket launch. There are 5.00 g of h...

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Q: In a reaction that is first-order with respect to reactant A and second-order with respect to reacta...

A: In a reaction that is first-order with respect to reactant A and second-order with respect to reacta...

Q: Which of the following is the most electronegative element? Ba        S          As        O

A: Which of the following is the most electronegative element? Ba        S          As        O

Q: A 7.00 L tank at -10.6 °C is filled with 12.1 g of sulfur hexafluoride gas and 10.0 g of dinitrogen ...

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Q: The disintegration energy of the decay30 P15 by position emission is 4.30 Mev.  The daughter nuclide...

A: Given,  disintegration energy = 4.30 Mev  mass of Si = 29.97396 u  Mass of positron, 0e+1 = 0.000548...

Q: Compound Formula Cation Symbol Anion Symbol Compound Name *CuCl, Cu 2* CI copper(II) chloride FeN *F...

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Q: QUESTION THREE Compare an electrochemical cell with an electrolytic cell by completing the following...

A: Comparison of electrochemical cell and electrolytic cell:

Q: 1ow. 1. Chemical potential energy is found in the between atoms and is transformed into energy durin...

A: * For answering o table is not available.

Q: C(s) + CO,(g) 5 2CO(g) K, = 1.90 atm

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Q: 3H 1H 2H 2H 9. 8. 7 6 4 PPM 2 1 3-

A: chemical shift values of protons of acetophenone depends upon electrondensity around them.Now in ort...

Q: Construct the expression for Kp for the following reaction. CC:(g) = C(s) + 2 Cl(g) 1 Drag the tiles...

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Q: 2. Consider the two cyclic molecules below A. В. a. The CH2 hydrogens of molecule A. and B. show ver...

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Q: What is the density of ammonia, NH3, at 800 torr and 25°C?

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Q: please answer 4

A: To Calculate the heat released when 68.0 gram of steam at 124°C is converted to water at 45℃.,   Gi...

Q: You are a forensic chemist and vou are given a white powder to analyze. You take a 0.25- g sample of...

A: Given that 0.25 g of a sample is dissolved in 4.0 g of a benzene.Freezing point of the solution is 3...

Q: The rate constant for the second-order conversion of A to B is 3.33 M-1hr-1. If the initial  concent...

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Q: 9:30 PM Tue Mar 15 22% I ( Lab+8 copy O O Q e Home Insert Draw Layout Review View Table Times New Ro...

A: Balancing equation:

Q: For the reaction A + B ---> C, the rate constant at 215°C is 5.0x10-3 M-1s-1and 1.2x10-1  M-1s-1at 4...

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Q: How much heat (k.) is evolved when 4.50 g of Fe2O3 is reacted with excess carbon monoxide using the ...

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Q: Can you identify constitutional isomers of CH3Cl or of CH2Cl2. If you can, draw them. Solve it asap

A: Constitutional isomer is one types of isomer in which compound having same molecular formula, but in...

Q: 6. Using the phase diagram in Question 5, determine the kilograms of beryllium that must be added to...

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Q: elemental gas has a mass of 10.3 grams. If the volume is 58.4 L and pressure is 758 torr at a temper...

A: Mass=10.3g Volume = 58.4 L Pressure = 758 torr = 758 / 760 = 0.9974 atm ( 1 atm = 760 torr) Temperat...

Q: Be sure to answer all parts. Caleulate the molecular mass or formula mass (in amu) of each of the fo...

A: Molecular mass - The sum of the atomic masses of all atoms in a molecule. 

Q: Calculate the pH of the following: (a) 500 ml of pure water (b) 15.0 mL of 2F hydrochloric acid add...

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Q: According to the law of conservation of mass, which statement about chemical reactions is always tru...

A: Law of conservation of mass states that " the mass in an isolated system can neither be created nor ...

Q: Calculate the molar volume of methane at 300 K and 100 atm given that the second virial coefficient ...

A: Theoretically, the second virial coefficient represents bimolecular attraction forces, and the third...