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Explain how much heat is produced in burning 10 of ethylene under standard conditions if reactants and products are brought to 298 and is formed? Explain the maximum amount of useful work that can be accomplished under standard conditions by this system if 10 of ethylene are burned?
Draw four structures corresponding to dihedral angles of 0, 60, 120 and 180 degrees. Clearly indicate the best and worst in this set.
If 46.1 g Zn at 18 degrees celsius is placed in 80 g h20 at 75 degrees Celsius what is the final temperature of the mixture. The specific heat capacities of zinc and water are 0.388 J/ g*k and 4.184 J/g*K
Determine the grams of sodium carbonate required to precipitate magnesium ions from water used in one wash cycle of a washing machine. Notes: 1) Assume the concentration of Mg+2 is 165mg/L 2) Estimate the volume of water used in your wash cycle 3)..
The final temperature was 52.0 C. Assume that the solution has a specific heat capacity of 4.184 J/(g K) and a density of 1.00 g/ml. Calculate dH for the following reaction in kJ.
A solution of sodium chloride in water hasa vapor pressure of 20.9 Torr at 25 degrees celsius. What is the mole fraction of NaCl in this solution
Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation.
using a sample of a compound containing only oxygen and chlorine reacts with an excess of h2 gas to give 0.206 g
determine the gram formula mass of the compound
a student doing an experiment was taking temperature volume readings for determining ?hvap. when the temperature of
Give the structural formula of the lewis-acid base complex which consists of one mole of phenylmagnesium bromide and two moles of diethyl ether.
many proteins contain metal porphyrin molecules that can be modeledas a planar square with an edge length of 10a. the
A beaker contains 0.964 grams of nitrogen. How many moles of molecular nitrogen does the beaker contain?
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