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Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E, ?H, and w for these processes. Cv J/K mol of C2H6 is 44.60 Cp J/K mol of C2H6 is 52.92 What is delta E, Delta H and W at constant volume and constant pressure in KJ
The standard potential of the Cell Pt|H2|HBr|AgBr|Ag was found to be +0.07372 at 293 K and +0.06873 at 303 K. Evaluate the standard reaction Gibbs energy, enthalpy, and entropy
A water solution containing 2.00 g of an unknown molecular substance dissolved in 10.00 g of water has a freezing point of 4.0°C. a. Calculate the molality of the solution.
20.00mL of radiator liquid, ethylene glycol has a mass of 20.85 g. What is the density of the liquid?
Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this process. If 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?
imagine you are a water molecule, describe your travels through the many you have been and might go in the future as you make your way around the hydrologic cycle time after time. Include travels through organisms.
When a container is filled with 3.00 moles of H2, 2.00 moles of O2, and 1.00 mole of N2, the pressure in the container is 465 kPa. What is the partial pressure of O2
How many liters of water vapor can be produced if 13.3 liters of methane gas (CH4) are combusted, if all measurements are taken at the same temperature and pressure?
A 40 foot fiberglass boat hull weighs 2000 kg. 60% of that is a fully cured crosslinked polyester resin (the remainder is the glass reinforcing fibers, pigment, fillers, etc.).
The enthalpy change for the reaction below at 25oC is -1,850 kJ (per mole of C9H20). What is the internal energy change for the reaction at 25oC
The lid is tightly sealed on a rigid flask containing 3.50 L H2 at 17 °C and 0.913 atm. If the flask is heated to 71 °C, what is the pressure in the flask?
A 0.351 L solution of 1.41 M oxalic acid (Ka1 = 6.5e-2 and Ka2 = 6.1e-5) is titrated with 1.25 M KOH. What will the pH of the solution be when 0.7008 L of the KOH has been added
In the recrystallization procedure, an Erlenmeyer flask is commonly used during the step in which the crude is dissolved in the solvent of choice. Furthermore, if the recrystallization is slow typically the flask is closed with a cork.
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