What is the enthalpy change for converting
What is the enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C? The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K and 1.84 J/g-K respectively. For H2O, Hfus = 6.01 kJ/mol, and Hvap= 40.67 kJ/mol.
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A 33.00 sample of an unknown solution is titrated with a 0.110 solution. The equivalence point is reached when 28.38 of solution is added. What is the concentration of the unknown H3PO4 solution?
Determine the theoretical yield if a 125.0g sample of zinc was used. Determine the percent yield if 515.6 g product is recovered.
The pressure inside a particular 5.00 L bottle of gas must be 1 atm or less in order to open the bottle cap. To what temperature, in oC, must a bottle of gas be cooled so that the bottle cap can be removed if at 25.0oC the pressure is 2070 mm Hg.
If a diamond is made out of pure carbon and has a density of 3.52 g/cm3, how large would a mole of carbon atoms (in diamond form) be in cm3? Compare this volume to the amount of volume that 1 mole of water occupies.
How many grams of the compound in excess remains after complete reaction?
a mixture of three gases has a total of 756 mm Hg. If the pressure of nitrogen is 612 mm Hg and the pressure oxygen if 100 mm Hg, what is the pressure of the carbon dioxide gas in the mixture?
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
What is the concentration (in mg/L ) of dissolved 02 in blood (or water) at this partial pressure and a normal body temperature of 37 C? partial pressure in lungs is 68mmhg.
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Thorough and appropriate documentation is essential to prevent malpractice lawsuits. Documentation should always occur:
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