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Calculate the standard enthalpy of combustion. The standard enthalpy of formation of palmitic acid - 208kJ/mol
a cylindrical glass tube 15cm in length is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 9.64g. Calculate the inner diameter of the tube in centimeters. The density of ethanol is 0.789 g/mL
How many atoms of 90Sr are in a 220.0 mL glass of milk with 1.25 Bq/L of 90Sr radioactivity? (The half life for the beta decay of strontium
how much aspirin is recovered? Solubility of aspirin in water at 25oC is one gram of aspirin per 300 milliliters of water.
calcuium hydroxide in an acid-base titration to neturalize an acid to the equivlant point. How many mols of potassium hydroxide would be needed to complete the same neutrization?
Conclude the range of pressures that this system can exists as 2 phases By imagine Raoult's law is applied to the system
ampere current have to be applied to plate out 8.00 grams of copper metal from te aqueous copper(II) sulfate solution?
What is the electron configuration of the atom in the third row of the periodic table that has the smallest ionization energy?
what polymer is made from the monomer vinylidene chloride
What is the relative kinetic energy between the electron and proton after ionization, that is r=infinity? C) Assume that the electron has all the kinetic energy in part
Calculate the molality of a calcium chloride solution prepared by dissolving 69.34 grams of calcium chloride in 638.7 grams of water.
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively. A sparingly soluble salt, Herbigon is dissolved in 1 Macetic acid for technical reas..
what concentration in ppm would it constitute? The effective volume of the earth's atmosphere is about 4.2 billion km^3, and take the average pressure to be 550 mm Hg and the average temperature to be -10 degrees C. The molar mass of air is 29 g/m..
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