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It was determined In a calorimetry experiment, that a piece of copper metal of 92.0 gram released 1860 Joules of heat to the surrounding H2O in the calorimeter (qcopper = -1860 J). what was the initial temperature of the Cu metal If the final temperature of the Cu-H2O mixture was at twenty five degree celsius? (The specific heat of copper = 0.377 J/(g°C).)
Determine the hydraulic conductivity and transmissivity of the aquifer and What would Q be if the hydraulic gradient
Determine how many grams of NaCl should be dissolved in a liter of H 2 O to produce an isotonic solution?
Explain the structure of the main mononitration product(s) of 3 bromo 1 nitrobenzen?
What is the final temperature of the sand A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at twenty five degree Celsius?
Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
What is the osmotic pressure of a homogenous solution at the temperature At 25 o C, as this solution is consisting of 21.0 g urea
A student measures the standard enthalpy change for reaction (C2H4(g) + H2O(g) CH3CH2OH(g)) to be -52.8 kJ :Calculate the standard enthalpy of formation.
Determine the new volume of a 1.3 L balloon if it is taken from room temperature that is twenty five degree celsius and placed into a freezer at the temperature of -11.5 degree celsius.?
Determine the phase composition and temperature when equilibrium is reestablished?
Calculate the pH of this solution? if we want to lower the pH by one unit of this solution then How many mL of 0.1 M H 3 PO 4 should be added to this solution?
Explain what health risks may arise people use this hot water in the preparation and cooking and what is the equilibrium constant for this reaction
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