Calculate the number of joules required to melt benzene
Pure benezene has melting point of 5.5 degree celsius. change in heat for benzene is 9.87 KJ/Mol. Calculate the number of joules required to melt 43.6g benzene at 5.5 degree celsius.
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When 1.5173 g of an organic iron compound containing C, H, O, and Fe was burned in O2, 2.838 g of CO2 and 0.8122 g of H2O were produced. In a separate experiment to determine the mass % of iron, 0.3355 g of the compound yielded 0.0758 g of Fe2O3.
What does this tell you about the equilibrium constants for the two reactions of hemoglobin with carbon monoxide and oxygen?
Compute the change in temperature when 1.1 g of sodium chloride is dissolved in 300.0 mL of water initially at 26 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
2SO2 (g) + O2 (g) ↔ 2SO3 (g) A study of this system reveals that there are 4.0E-3 moles of sulfur dioxide gas, and 4.9E-3 moles of oxygen gas present in a 9.0L flask at equilibrium. The equilibrium constant for this reaction is 4.1E-3.
What characteristic properties distinguish the transition elements from the Group IA and-IIA metals?
Assuming the composition of coal can be approximated by the formular C135H96O9NS. Calculate the mass of carbon in tonnes of coal
How many L of hydrogen are needed to drive to the Grand Canyon, 789 miles away?. The density of hydrogen is 8.99x10 to the negative 5 g/cm cube.
A mixture contains 76.5 % NaCl, 6.5 % MgCl_2, and 17.0 % Na_2SO_4 by mass. What is the molarity of rm Cl^- ions in a solution formed by dissolving 7.40 g of the mixture in enough water to form 490.0 mL of solution?
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