How many grams of ethyl alcohol added to water
How many grams of ethyl alcohol, C2H5OH, must be added to 1.000 kf of water so that the solution will not freeze until -20 degrees C? For water, Kf= 1.86 degrees C/m.
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A 230.0 g piece of lead is heated to 80.0 deg C and then dropped into a calorimeter containing 633.0 g of water that initally is at 16.0 deg C. Neglecting the heat capacity of the container, find the final equilibrium temperature (in deg C) of the
What is the minimum concentration of Mg2+ required to begin precipitating Mg(OH)2(s) in a solution of pH 10.82? For Mg(OH)2
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) --> Ca(OH)2(s). In a beaker, 1.45 g of H2O is added to 1.50g of CaO.
The complete electron configuration of: Beryllium Fluorine Aluminum The noble gas configuration of: Iron Yttrium Bromine Fe+3 Ba+2 As-3
Why is it more difficult to precipitate cupric acetate (verdigris) than cupric carbonate hydroxide (malachite)
The specific heat of copper metal is 0.385 J/g ·°C. How many joules of heat are necessary to raise the temperature of a 1.40 g block of copper from 31.4°C to 96.6°C?
Silicon Carbide, which has the emperical formula: SiC, melts at 2830 deg C. and is nearly as hard as boron nitride and diamond. Which category of substances does it most likely fit under?
Draw a Newman projection of the most stable conformation of (2R, 3S)-dibromobutane sighting down the C2-C3 bond.
The reaction is Ba(NO3)2(aq)+Na2so4(aq)toBso4(s) + 2NaNo3 (aq). The final the mixture increasing to 28.1 C degree. Calculate the enthalpy change per mole for this process.
What is the Lewis structure of the covalent compound that contains one nitrogen atom, one hydrogen atom, and one carbon atom?
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