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The normal melting point of benzene is 5.5 degrees Celsius . For the process of freezing, what is the sign for each of the following:
a) Delta Hsys b) Delta Ssys c) Delta Gsys at 5.5 degrees Celsius d) Delta Gsys at 0 degrees Celsius e) Delta Gsys at 25 degrees Celsius
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
19.0 g of sodium hydroxide is dissolved in 731 g of water. Calculate the mass percent of sodium hydroxide in the resulting soulution.
Estimate the osmotic pressure of human blood at 37°C. Assume blood is isotonic with a 0.16 M NaCl solution, and assume the van't Hoff factor i is 1.9 for NaCl.
A certain substance has a heat of vaporization of 44.76 KJ/mol. At what kelvin temperature will the vapor pressure be 4.00 times higher than
mixture(O,H) is ignited with a spark and it reacts to form (H2O)liquid water. determine the temperature of water.
When 35.6 L ammonia and 40.5 L oxygen gas react at STP, NO(g) and water are produced. How many grams of NO(g) are produced assuming 100% yield?
How many grams of thallium may be formed by the passage of 57.5 amps for 1.34 hours through an electrolytic cell that contains a molten
what is the molecular mass nonionic solutes of 8.02 grams of solute in 861 grams of water lower the freezing point to -0.430 c.
A cube of a silver-colored metal with a volume of 64 cm3 has a mass of 672 g. The density of pure silver is 10.5 g/cm3. Is the metal pure silver?
Hydrogen can be extracted from natural gas according to the following reaction: CH4(g)+CO2(g) 2CO(g)+2H2(g) Kp=450 at 825K An 85 L reaction container initially contains kg of CH4 and 55.4 kg of CO2 at 825 K Assuming ideal gas behavior,
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
Below is the 1H NMR spectrum of the following triazine structure. In the expansions of the spectrum, place the observed multiplicity in the bin above the resonance.
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