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In 1911, Hans Geiger and Ernest Marsden (working under Ernest Rutherford) conducted an experiment involving alpha particles and gold foil that led to the discovery of the nucleus in atoms.
The generalized van der Waals chemical potential of a pure solvent and a dilute solute in a solvent
A cylinder is labeled "PENTANE." When the gas inside the cylinder is monochlorinated, five isomers of formula C5H11Cl result. Was the gas pure n-pentane, pure isopentane, pure neopentane
equal masses of three different ideal gases x y and z are mixed in a sealed rigid container. if the temperature of the
What is the total mass of the Earth's atmosphere. How does this compare to the mass of the Earth
Calculate the theoretical amount of oxygen based on your starting mass of reactant. Then calculate the percent yield when you compare your actual yield to this theoretical yield.
a sample of ammonia gas at 1.2 atm compressess from 500 ml to 250 ml. if the temerature remains constant, what is the new pressure of the gas? what formulas were used?
Consider the reaction Pb(s) + 2H^+(aq) ? Pb^2+(aq) + H2(g). If the hydrogen gas pressure is maintained at 1.00 atm and the lead(II) ion concentration is 0.025 M, find the pH at which this reaction is at equilibrium
How much energy is required to vaporize 145g of butane at its boiling point? The heat of vaporization for butane is 23.1 kJ/mol
write equations for the chemical reactions that occurred between the aqueous solutions of the oxides of sulfur and calcium and between the aqueous solutions
How would the following modifications of the experimental procedure used in this experiment affect the mass of the precipitate collected? Indicate whether the mass would be greater than, unchanges, or less than that obtained. Briefly explain the ..
An aerosol can has a gas pressure of 138 kPa at 293 K. Calculate the pressure when the can is heated to 506 K.
what is the formula for the complex formed from chromium (iv), two moles of water,
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