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- 1.calculate the velocity (in m/s ) of a 2.33-g object that has Ek-46.2 J.What is the magnitude of teh uncertainity associated with each of the following measurements. a) 317.0? b) 0.0317?Which of the following matches the given data? 13C: δ 73, 68, 65, 62, 58, 55, 53, 50 1H: δ 3.74 (s, 1H, broad), 2.11 (q, 2H), 2.09 (s, 2H), 1.43 (t, 2H), 1.31 (t, 2H), 1.00 (s, 6H)
- Consider the following: SiF4, CF4, CF3H, and Ne. (a) Which one will diffuse the fastest? - answered (b) What is the rms speed (m/s) of the slowest-moving atom or molecule at 25°C? JUST NEED THE RMS of SiF4If a proton and electron are released when they are 2.0 m apart, find the initial acceleration of electron (in m/s2). The answer (in fundamental SI unit) is?The average bond enthalpies of the C—F and C—Cl bondsare 485 kJ/mol and 328 kJ/mol, respectively. (a) What isthe maximum wavelength that a photon can possess andstill have sufficient energy to break the C—F and C—Clbonds, respectively? (b) Given the fact that O2, N2, andO in the upper atmosphere absorb most of the light withwavelengths shorter than 240 nm, would you expect thephotodissociation of C—F bonds to be significant in thelower atmosphere?
- Calculate delta U when 1.00 mol of H2 goes from 1.00 atm, 10.0 L, and 295 K to 0.793 atm, 15.0 L, and 350 K. The answer is 1590 J but am just unsure how to get the final answer. Thank you.why is the 0.000876 amu not negativeHelium (He) is the lightest noble gas component of air,and xenon (Xe) is the heaviest. [For this problem, use R=8.314 J/(molK) and μ in kg/mol.] (a) Find the rms speed of Hein winter (0°C) and in summer (30°C). (b) Compare the rmsspeed of He with that of Xe at 30°C. (c) Find the average kineticenergy per mole of He and of Xe at 30°C. (d) Find the average kinetic energy per molecule of He at 30°C.
- In a certain oxide of nitrogen in g/L at multiple pressures at 0 °C, different density results were obtained. Determine the Molecular Weight (MW) of the substance and the atomic weight of Nitrogen. Pressure Density 1 atm 1.9804 2/3 atm 1.3164 ½ atm 0.9861 1/3 atm 0.6565What is ΔSsurr for a reaction at 28.6 °C with ΔHsys = 38.9 kJ mol-1 ? Express your answer in J mol-1 K-1 to at least two significant figures.a)Set the temperature to 350 Kelvins (350 K) and select atomic hydrogen (A = 1) for gas type. What is the likeliest particle speed (in m/s) to be found in a sample of atomic hydrogen at 350 K? Double-check that you have set the temperature to 350 K. Have you selected atomic hydrogen (A = 1) from the drop-down menu? Are you reading the speed value from the center of the graph? m/s (b) Now double the particle mass, by selecting molecular hydrogen (A = 2) while leaving the temperature unchanged. What is the new value of vmax (in m/s)? Double-check that you have set the temperature to 350 K. Have you selected molecular hydrogen (A = 2) from the drop-down menu? Are you reading the speed value from the center of the graph? m/s (d) The kinetic energy of an atom or molecule is proportional to the particle's mass and to the square of its speed KE = 1/2 mv2. Suppose that m = 1 amu for atomic hydrogen (H) and m = 2 amu for molecular hydrogen (H2). Using the vmax value you…