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A 232 lb fullback run the 40 yd dash at a speed of 19.25 .10± mi/h. what is his de broglie wavelength in meters and what is the uncertainty in his position based on the de Broglie wavelength
draw the expanded structural formula for the drug. Pick one amino acid ionic group that can bind with the drug.
How many grams of water can be cooled from 34°C to 26°C by the evaporation of 81 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g·K.)
A sample of helium gas has a volume of 900. milliliters and a pressure of 2.50 atm at 298 K. What is the new pressure when the temperature is changed to 336 K and the volume is decreased to 450. milliliters?
A 0.22 g sample of a large biomolecule was dissolved in 30.0 mL of solution. The osmotic pressure of this solution was 32 mm Hg at 27 degrees celsius. What is the molar mass of the biomolecule
Calculate the composition of the vapor (mole fraction of each component) that is in equilibrium in the solution at the boiling point of this solution
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell- Pt(s)[H2(g, 1atm)][H+(aq, 1.0M)][A^3+(aq,?M)]Au(s)
The wavelength of maximum absorbance is solvent dependent. in water, the wavelength of maximum absorbance is 453 nm.
Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer solution
Hospital patients are administered oxygen from an pressurized hyperbaric oxygen chamber. 600.0 L of oxygen is compressed in a cylinder at 160.0 atm. What volume of oxygen can a cylinder supply at the given pressure.
consider a 0.0500m HClO2 is a moderately weak electrolyte acid such that 36% of the molecules dissociate when dissolved in water. calculate the van't hoff factor
What is the rate constant when the rate law is written delta[BrO3-]/delta[t]? Or delta[Br-]/delta[t]?
Calculate the standard cell potential and the equilibrium constant for the oxidation of ethanol to acetaldehyde. Calculate the equilibrium constant.
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