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A new kind of balloon is designed to be a perfect cube in shape, no matter how full. Suppose of these balloons can be stretched to a maximum surface area of 1435 cm2. The balloon is filled with 2.87 L of helium gas at a pressure of 746 torr and a temperature of 298 K. The balloon is then allowed to rise in the atmosphere. If the atmospheric temperature is 260 K, at what pressure will the balloon burst?
Calculate the enthalpy for the conversion of graphite into diamond given the following heats of combustion for each substance.
A person's heartbeat is 82 beats per minute. If his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? how do I solve th
A garage that specializes in foreign cars had a small magnesium fire when a car part was ignited. The mechanic knew from his training that he should not use water but could use a dry powder like a sodium chloride based fire extinguishing powder (MET-..
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties
Carbon disulfide can be made from reacting sulfur dioxide with carbon. The reaction is: 5C + 2SO2 = CS2 + 4CO How many grams of carbon disulfide can be produced from 450 grams of sulfur dioxide if excess carbon is added
For the reaction NO(g) + NO2(g) -> N2O3(g), utilize tabulated thermodynamic data to compute DH° and DS°. Then use those values to answer the following questions.
The temperature of a reaction was increased from 20 to 40deg.C. You were determining the rate of reaction at each of the 2 temperatures. The second reaction should be faster by how much
Inversion of Configuration and Determination of R/S. Draw a compound with an asymmetric center. Rotate so that you can determine whether it is R or S. Invert the stereochemistry
Draw energy level diagram to show the low- and high spin octahedral complexes of the transition-metal ions that have the electron configurations d4 d5 d6 and d7
suppose you had a detection device that could count every decay from a radioactive sample of plutonium-239 t12 is 24000
During an experiment tap water was tested to be a strong electrolyte. What can be said about the presence ionic impurities in tap water. Explain what can be said about the presence of molecular impurities in tap water
Calculate the lattice energy of NaCl. Heat of sublimation is 108kj/mol and Heat of NaCl is -411kj/mol. Energy to dissociate .5 mole of Cl2to an atom of Cl is121.4 kj/mol.
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