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A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 17.0 m/s at an angle of 40.5° above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of the ball just before it lands.
Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
69.7 grams of a solute with a molecular mass of 2790 grams are dissolved in enough water to make 1.00 dm(3) of solution at 20 degrees C. What is the osmotic pressure of the solution? express your answer in kPa
Predict the NMR spectra for each of these two compounds by listing, in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest.
Consider the arguments about big business in Chris Tilly, "Is Small Beautiful "(article 5.1 in Real World Micro), Edward Herman's "Brief History of Mergers and Antitrust Policy" (article 5.2), and Rob Larson, "Not Too Big Enough" (5.5). Should we ha..
Question- The rate constant for this first order reaction is .830 s -1 at 400 C. How long in seconds would it take for the concentration of A to decrease from .690 M to .370M
What is the wavelength of an electron (mass= 9.11 x 10^-31 kg) moving with a velocity
The equilibrium constant, Kp, for the following reaction is 2.74 at 1150 K.
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
Compute the equilibrium concentration of La3+ in the resulting solution. Ignore activity coefficients. Ksp = 1.0 x 10-11
Determine the compounds Cl2, HCl, F2, NaF and HF which compound has a boiling point closest to that of argon. Define
Question- Give the symbols for the nuclide that is formed in each of the following radioactive decays by indicating the atomic symbol, atomic number, and mass number of the nuclide.
A certain indicator HIn has a pKa of 3.00 as well as a color change becomes visible when 7.00% of the indicator has been converted to IN-. Explain at what pH is this color change visible
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