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For the reaction described by the chemical equation: 3C2H2(g)-->C6H6(l) Change in reaction=-633.1kJ mol^-1
a) Calculate the value of DeltaS °rxn at 25.0 °C.
b) Calculate DeltaG °rxn.
c) In which direction is the reaction, as written, spontaneous at 25 °C and standard pressure?
In photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
A 4.70 g nugget of pure gold absorbed 260 J of heat. The initial temperature was 28.0°C. What was the final temperature.
Calculate the molar solubility of AgCl in a 1.00L solution containing 10.0g of dissolved CaCl2. Compare the molar solubility of Mg(OH)2 in water and in a solution buffered at a pH of 9.0
Consider the reaction 2 Al2O3(s) → 4 Al(s) + 3 O2(g). ?H = +3339.6 kJ/mol What is ?H for the formation of one mole of Al2O3(s) from the elements
When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 108mL sample of blood contains 9.7*10^-5g Ca2+/mL
Find out the required pressure to compress 180 liters of N at 1.0 atm into a tank whose volume is 34 liters.
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
Potassium hydrohen phthalate, KHC8H4O4, functions as monoprotic acid. If a 1.46 g sample of impure KHC8H4O4 requires 34.3 ml of 0.145 M NaOH
Calculating percent purity from a reaction, One of the reactions that occurs in a blast furnace, where iron ore is converted to cast iron is Fe2O3 + CO = Fe + CO2.
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
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